Past Papers and MCQs

Every Day Science past papers

Q. 1. (a) What were the special characteristics of Muslim Scientists?
(h) What were the contributions of the following Muslim Scientists:
(i) Umar AI-Khayyam.
(ii) Abu Ali Sina
(iii) ibn Hayyan
(iv). Jhn al Baitar
(v) Zakariya Al-Razi.

Q. 2. (a) Differentiate clearly between Cyclone, Huriicane and tornado.
(b) (i) Name two minerals which ate exported from Pakistan.
(ii) Name some gem-minerals used in Jewellery.
(iii) What is dead sea.
(iv) Why does the Sun appears orange-red at the time of Sunrise and Sunset.
(v) Why does the total Eclipse can happen only at the new Moon.

Q. 3. (a) Name popular farms of Energy. Write five various scientific devices used to convert one type of energy into another form of energy.
b) Write meaning of the following units:
(i) Barrel
(ii) Joule
(iii) Btu
(iv) KWh
(v) Newton.

Q. 4. Write short notes on any THREE of tiillowing:
(i) Synthetic Polymers..
(ii) Laser.
(iii) Pesticides
(iv) Fission and Fusion
(v) Pararnagnetism and Diamagnetism.

Q. 5. Write difference between:
(i) Microcomputer and minicomputer
(ii) Main frame and Super computer.
(iii) Hardware and Software.
(iv) Byte and Word.
(v) Ram and Cache memory.

Q. 6. Describe briefly the principle and working of any TWO of the following:
(i) Pressure cocker
(ii) Television
(iii) Microwave oven
(iv) Radar
(v) Tape recorder.

Q. 7. Differentiate between:
(i) DNA and RNA
(ii) Brass and Bronze
(iii) Blood and Lymph
(iv) Hard water and Heavy water
(v) Small pox and Measles
(vi) Pig iron and Stainless Steel.
(vii) Alloy and Amalgum
(viii) Isotopes and Isobars
(ix) Artery and Vein
(x) Barrage and Dam.

Q. 8. Explain the scientific reasons for the following:
(i) It is not advisable to sleep under trees during the night.
(ii) Water boils quicker on mountains.
(iii) Rainbow is produced in the sky after rain fall and sunlight.
(iv) Water remains cool in a Earthenware pitcher.
(v) Milk is considered as an ideal food.

Q. 9. Which of the following statements are true or false. Only write “True” or “False” in the answer book. Do not reproduce the statement.
(i) Urea is a phosphate fertilizer.
(ii) Cellulose is a natural polymer. (iii) Magnetite is the ore of copper
(iv) Malaria is caused by drinking polluted water.
(v) The instrument used to measure velocity of wind is Barometer.
(vi) Our eye is very sensitive to blue light.
(vii) Sound can not travel through vacuum.
(viii) Enzymes are biological catalyst.
(ix) Leprosy is a disorder of Nervous System.
(x) Mica is a non-conductor of electricity.

Q.10 What are Endocrine glands? Name any four. From which part of the body are the followings secreted:
(i) Insulin
(ii) Thyroxin
(iii) Adrenaline
(iv) Oestrogen
(v) Testosterone and
(vi) Cortisol

Q.11 (a) Name the important parts of a Flower.
b) Explain the Pollination and Fertilization processes.

Q.12 Write short notes on any FiVE of the following:
(i) Ecosystem
(ii) CNG
(iii) PVC
(iv) Hormones
(v) Antibiotics
(vi) Ceramics
(vii) Green House Effect
(viii) Photosynthesis
(ix) Pasteurization
(x) Vaccine.

Q.13 What are the factors of water pollution? What types of diseases are transmitted by using polluted the methods to control pollution of water.

Q.14 Fill in the blanks with appropriate words:
(i) The purpose of computer is
(ii) polio is caused by __________
(iii) The stalagmite is deposit of
(iv) Bauxite is one of ___________
(v) The chemical name of washing soda is
(vi) The main constituent of Sui gas is ____________ colour has the shortest wave length.
(vii) __________colour has the shortest wave length.
(viii)Glass is a __________
(ix)Monomers of protein are _________
(x)Ascorbic acid is vitamin _________
(xi)The solar system has __________
(xii)Aids is caused by _____________
(xiii) In a normal resting person the rate of heart heat is
(xiv) The science which deals with heredity is known as
(xv) In Pakistan Copper mineral is tound in ____________
(xvi) The most abundant element in the earth crust is
(xvii) _________ is an apparatus used tbr measuring the pressure of gases.
(xviii)The smallest branches of an artery lead into tiny blood vessels are called
(xix) The living part of a plant cc I is composed of a nucleus and _______
(xx) The fastest revolving plant is _______

EDS Paper 2002
General Knowledge, Paper I
Every Day Science
Attempt any 10 questions. All questions carry equal marks

Q.1 Write short notes on any two of the following : 5 each
a. Acid Rain b. pesticides c endocrine system

Q.2 Differentiate between any five of the following pairs : (2 each)
a) rotation and revolution of earth b monocot and dicot plants
c pollination and fertilization d umbra and penumbra
e nucleus and nucleolus e heavy water and hard water

Q.3 Draw a labeled diagram of human eye, indicating all essential parts, discuss its working (5,5)

Q.4 Fill in the blanks with suitable words : ( 1 each)
a. Heavenly objects, which resembles stars and emit radio waves are called _ _ _ _
b. _ _ _ are hot springs that erupt hot water and steam from time to time
c. Hot liquid rock beneath the earth’s surface is called _ _ _ _
d. The first simply microscope was invented by _ _ _ _
e. _ _ _ _ is the power house of the cell
f. Ability of the air to absorb long heat waves from the earth after allowing the short waves from sun to pass through it is known as _ _ _ _
g. Computer works on the principle introduced by the Muslim scientist _ _ _ _
h. Coldest planet of the solar system is _ _ _ _
i. The rupture of red blood cells is called _ _ _ _
j. Muslim Scientist Ali ibn Al Tabari is famous for his work on _ _ _ _

Q.5 What is the solar system ? Indicate the position of planet pluto in it. State the characteristics that classify it as : (5,1,4)
a. a planet b. an asteroid

Q.6 which quantities are measured by the following SI units : (1 each)
a. Watt b. Coulomb c. Pascal d. Ohm
e. Kelvin f. Joule g. meter h. Farady
i. Hertz j. Ampere
Q.7 What are minerals ? For most of the part minerals are constituted of eight elements, name any six of them. State the six characteristics that are used to identify minerals

Q.8 Define any five of the following terms using suitable examples :
a. Polymerization b. Ecosystem c. Antibiotics
d. Renewable energy resources e. Gene f. Software

Q.9 what do you understand by the term “Balanced Diet ? What are its essential constituents ? state the function of each constituent (2,3,5)
Q.10 Which of the following statements are true and which are false (1 each)
a. Haploid cells result from the process of mitosis
b. All stars are of the same colour
c. The left lung has two lobes while the right lung has three lobes
d. The pulmonary veins return oxygenated blood to the right atrium
e. Muslim Scientist Ibn Haitham is famous for his work on planets
f. Our galaxy milky way is shaped like a large thick concave lens with a large central bulge
g. DNA has a double helix structure while the RNA does not have a double helix structure
h. The normal temperature of Human Blood is 37 c (98.6 F)
i. The liver is a part of gastrointestinal tract
j. Movement of tectonic plates may cause eruption of a volcano

Q.11 What do the following scientific abbreviations stand for ? ( 1 each)
a. LASER b. RADAR c. LPG d. PVC e. CFC
f. AIDS g. ROM h. LAN i. WWW j. DNA

Q.12 Give brief scientific reasons for any five of the following statements : (2 each)
a. Lunar eclipse lasts much longer than solar eclipse
b. Goiter is common in people living in hilly areas
c. Mixture of ice and salt (sodium chloride) is used as a freezing mixture
d. Detergents are better cleaning agents compared to soap
e. Decomposers are important for life on land and water
f. Places near the sea are cooler in summer and warmer in winter than places farther inland
Q.13 Name ( 1 each )
a. A disease caused by deficiency of vitamin C
b. The major fossil fuel impurity
c. The instrument used to measure degree of humidity
d. An ore of Zinc
e. Two most abundant elements present in the sun
f. The metal atom present in chlorophyll
g. The gland responsible for the secretion of the hormone estrogen
h. An element used in the doping of silicon for the preparation of a p-type semiconductor
i. A synthetic fibre which is a polyamide
j. Major constituent of Biogas
Q.14 What are fertilizers ? what do you understand by the term NPK fertilizer ? How do fertilizers contribute to water pollution ? (3,1,6)
Q.15 Choose the one alternative the best completes the statement or answer the question ( 1 each )

1). Glycogen is an example of
a Carbohydrate b Peptide
c Lipid d steroids

2). The cell structure that controls movements of material into and out of the cell is the a) mitochondria b) cell membrane
c) Centriole d) golgi body

3). The unit that co-ordinates different devices of the computer system is
a ALU b register
c control unit d logical instructions

4). _ _ _ _ manages and controls various functions of the computer
a in put/out put device b main memory
c operating system d both a & b

5). The number of natural satellite orbiting around the planet Mars is
a 1 b 2
c 5 d 14

6). _ _ _ _ is an example of mechanical digestion
a glycolysis b hydrolysis
c Mastication d defecation

7). Botanically a fruit is a/an
a ripened ovule b mature stigma
c ripened ovary d fully mature flowering stalk

8). The vocal folds are part of the
a nasal cavity b larynx
c trachea d laryngopharyn

9). Blood glucose is raised by all of the following except
a glycogen b insulin
c cortisol d epinephrine

10. The famous book Al-Qanoon was written by the Muslim scientist
a Jabir-ibn-Ha

CSS 2003

1. Write short notes on any two of the following :
a). Microwave oven : It is one of the great inventions of the 20th century. Microwave ovens are popular because they cook food quickly. They are also extremely efficient in their use of electricity because a microwave oven heats only the food - nothing else. A microwave oven uses microwaves to heat food. Microwaves are radio waves. In the case of microwave ovens, the commonly used radio wave frequency is roughly 2,500 megahertz (2.5 gigahertz). Radio waves in this frequency range are absorbed by water, fats and sugars. When they are absorbed they are converted directly into atomic motion - heat. Microwaves in this frequency range have another interesting property: they are not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, that’s why metal pans do not work well in a microwave oven.
b). Optic fibre : Optical fiber refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic wire or fiber. Optical fiber carries much more information than copper wire. Most telephone company long-distance lines are now of optical fiber.
Transmission on optical fiber wire requires repeaters at distance intervals. The glass fiber requires more protection within an outer cable than copper. For these reasons and because the installation of any new wiring is labor-intensive, few communities yet have optical fiber wires or cables from the phone company's branch office to local customers. A type of fiber known as single mode fiber is used for longer distances; multimode fiber is used for shorter distances.
c). Biotechnology: The simplest definition of biotechnology is "applied biology" and the application of biological knowledge and techniques to develop products. It may be further defined as the use of living organisms to make a product or run a process. By this definition, the classic techniques used for plant and animal breeding, fermentation and enzyme purification would be considered biotechnology. Some people use the term only to refer to newer tools of genetic science. In this context, biotechnology may be defined as the use of biotechnical methods to modify the genetic materials of living cells so they will produce new substances or perform new functions. Examples include recombinant DNA technology, in which a copy of a piece of DNA containing one or a few genes is transferred between organisms or "recombined" within an organism.
2. Give names of the members of the solar system. Briefly write down main characteristics of : a). Mars b). venus
- Mercury - Venus - Earth - Mars - Jupiter
- Saturn - Uranus - Nepture - Pluto

Mars : It is the fourth planet in solar system. (Greek: Ares) is the god of War. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet. The name of the month March derives from Mars. The first spacecraft to visit Mars was Mariner 4 in 1965. Though Mars is much smaller than Earth, its surface area is about the same as the land surface area of Earth.

Venus : Venus is the second planet from the sun and the sixth largest. Venus' orbit is the most nearly circular of that of any planet. (Greek: Aphrodite; Babylonian: Ishtar) is the goddess of love and beauty. The planet is so named probably because it is the brigthest of the planets known to the ancients.

3. Name :

a). The instrument used for the measurement of blood pressure : sphygmomanometer
b). A mammal, which can fly : bat
c). A disease which is more common in men than in women and is hereditary in character : daibetes millatus
d). One endangered animal species of Pakistan : snow leopard
e). An ore of mercury : Amorphous
f). A cyanobacterium : Anabaena azola
g). A hormone secreted by pancreas : insulin
h). The nuclear reaction taking place on the surface of sun : fusion reaction
i). The scientist who discovered sulfuric acid : Jabir bin Hayan
j). The constituent elements of brass :

4). What do the following scientific abbreviations stand for :

a). SONAR : sound navigation by application of radiation
b). SARS : severe acute respiratory syndrome
c). NTP : network time protocol
d). RQ : respiratory quotient
e). PVC : polyvinyl chloride
f). NPN : negative positive negative
g). WAN : wide area network
h). ECG: electro cardio gram
i). CPU: central processing unit
j). BCG : bacillus of calmette –Guerin

Q 5 : what are pesticides ? discuss their classification commonly in use with agronomists.

Toxic chemicals that are used to destroy pests are known as pesticides. Fungicides (which kill fungi), herbicides (which kill plants), and insecticides (which kill insects) are types of pesticides.

Classification of Pesticides :

Acarcides, Algicides, Bactericides, Bird repellents, Fungicides, Herbicides, Insect attractants, Insect repellents, Insecticides, Nematacides , Mamal repellents, Rodenticides , Virucides and plant growth regulators

Each major group of pesticides (e.g. herbicides or plant growth regulators) is subdivided into chemical or other classes (e.g. chloroacetanilide herbicides or auxins).

Q 6 : Define any five of the following :

Acoustics : The science of sound dealing with the production, effects, and transmission of sound waves through various mediums. Includes the effects of reflection, refraction, diffraction, absorption, and interference

Quartz : It is a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities. It is a mineral composed of the elements silicon and oxygen (silicon dioxide) that occurs in multiple forms.

Cross Pollination : Mixing the pollen of one flowering plant with another to create a hybrid. It is done by transfer of pollen from one flower to another of a different variety but of same species. Necessary for the fruit development of many plants.

Allele : Any of the alternative forms of a gene that may occur at a given gene locus. One of the variant forms of a gene at a particular locus, or location, on a chromosome. Different alleles produce variation in inherited characteristics such as hair color or blood type.

Optical Illusion : drawing or object that appears to have an effect that it does not really have, such as when a flat painting seems to have three-dimensional depth. When something appears different than it actually is. Example: Trompe de oil murals which "trick the eye" into thinking they are 3 dimensional, or when a ceiling appears higher than it is because of colors, etc. used.

Ovulation : The release of an egg (or eggs) from the ovary.

Aqua Regia : Aqua regia is a 3:1 mixture of hydrochloric acid and nitric acid. Aqua regia is used to test gold and platinum; it is just about one of the few substances that can dissolve gold and platinum.

Q. 7 : Which physical quantities are measured by the following units :

a) Pascal Sound Pressure
b) Torr Pressure
c) Curie Intensity of radioactivity
d) Angstrom Unit of length
e) Light year The distance light travels in a year
f) Dioptre Lens refractive power
g) Horse power Unit of Power
h) Radian Unit of angular measure
i) Candela Unit of luminous intensity
j) Mole unit of amount of substance

Q. 8: Explain the structure of Earth and its Atmosphere

Atmosphere of Earth :

Gaseous envelope of the Earth, or any other celestial object. The Earth’s atmosphere is made up of nitrogen (78 per cent), oxygen (21 per cent), argon (0.9 per cent), carbon dioxide (0.03 per cent), varying amounts of water vapour, and trace amounts of hydrogen, ozone, methane, carbon monoxide, helium, neon, krypton, and xenon.

The atmosphere is divided into several layers. The lowest one, the troposphere, extends up to about 16 km (10 mi) in tropical regions and to about 9.7 km (6 mi) in temperate latitudes. Most clouds occur in this layer. Above the troposphere is the stratosphere, which has an upper boundary of almost 50 km (30 mi). The layer from 50 to 80 km (30 to 50 mi), called the mesosphere, is characterized by a marked decrease in temperature as the altitude increases. At an altitude of 80 km (50 mi), ultraviolet radiation, X-rays, and showers of electrons from the sun ionize several layers of the atmosphere, causing them to conduct electricity. Because of the relatively high concentration of ions, this layer, extending to an altitude of 640 km (400 mi), is called the ionosphere. The region beyond the ionosphere is called the exosphere; it extends to about 9,600 km (6,000 mi), the outer limit of the atmosphere.

Air pressure is measured by a barometer and is expressed in torrs, which are related to the height of a column of mercury that the air pressure will support. Normal atmospheric pressure at sea level is 760 torrs. At about 5.6 km (3.5 mi), it is 380 torrs; half of all the air in the atmosphere lies below this level.

Q. 9 : Fill in the blanks :

The conversion of non-diffuisalbe substances into diffusible ones by the action of enzymes in called :
Diamond is the purest naturally occurring crystalline form of : Carbon
Caustic soda is extensively used for making : making Surf
When a person can see nearer objects but not the distant ones he is said to be suffering from : nearsightedness (myopia)
Marble is --- rock : metaphoric
Curie is a unit of : radioactivity
The brown colour of rust is because of : oxidation
The movement of food through esophagus is by the muscular action known as : peristaltic
Granite is a form of – rock :
Cellulose -- is the main chemical substance in the plant cell wall :
Cell -- was first discovered by Robert Brown :

Q 10. What are Endocrine Glands ? Name any two . From which of the body are the following secreted :

Group of organs and tissues of the body that release hormones. The endocrine glands and their hormones regulate the growth, development, and function of various tissues and coordinate many of the processes of metabolism.

Pituitary Gland
The pituitary gland has three lobes: anterior, intermediate, and posterior. It is situated at the base of the brain and has been called the “master gland”. The pituitary secretes various hormones that stimulate the function of other endocrine glands; growth hormone; and endorphins, peptides that reduce sensitivity to pain. The pituitary also stores vasopressin, an antidiuretic hormone secreted by the hypothalamus.

Adrenal Glands
The adrenal glands, located on top of each kidney, consist of a medulla (inner part) and a cortex (outer part). The adrenal medulla produces adrenaline and noradrenaline, which affect a number of functions that help the body deal with acute emergencies. The adrenal cortex secretes a group of steroid hormones, including cortisone and hydrocortisone, that are essential to the maintenance of life and adaptation to stress.

Insulin : Pancreas
Thyroxin : Thyroid
Adrenaline ; Adrenal medulla
Estrogen : Ovaries
Testosterone : Testes
Cortisol; Adrenal cortex

Q. 11 Chose the best choice in the following statements :

1. Enzymes are organic catalysts made up of :
a. Carbohydrate b. Proteins c. Fats d. Nucleic Acid
b

2. A nanometer is :
a. 10 -3 meters b. 10-6 meters c. 10-9 meters d. 10-12 meters
c

3. The minimum speed of a Pentium II computer is :
a. 133 Mhz b. 233 Mhz c. 333 Mhz d. 433 Mhz
c

4. According to recent classifications the living organisms are divided into number of kingdoms :
a. 2 b. 3 c. 4 d. 5

5. Glycosis is a process of :
a. Photosynthesis b. Reproduction c. Transpiration d. Respiration
d

6. The Unit that coordinates different devices of Computer system is :
a. ALU b. Register c. Control Unit d. Logical Instruction
c

7. Seed is technically :
a. Ripened Ovule b. Carpel c. Ripened Ovary d. Fully mature pollen grain
a

8. ADH is a harmone secreted by :
a. Anterior pituitary b. posterior pituitary c. Adrenal Cortex
d. Adrenal Medulla
b

9. The number of natural satellites orbiting around the Mars is :
a. 1 b. 2 c. 5 d. 14
b

10. Permian Period belongs to :
a. Palaeozoic era b. Mesozoic era c. Coenozoic era d. Precambrian era
a

Q . 12 Differentiate between the following pairs :
a). Lava and Magma
Molten rock, when it is still beneath the earth's surface is Magma, and "lava" after it has erupted.

b). Ultraviolet and infrared

Ultraviolet :electromagnetic radiation with wavelengths between 4,000 nm, the wavelength of violet light, and 150 nm, the length of X-rays. (The nanometre, nm, equals a millionth of a millimetre). Natural ultraviolet radiation comes from the Sun, and artificial ultraviolet radiation comes from electric-arc lamps (Electric Arc).
Infrared : electromagnetic radiation in the portion of the spectrum just beyond the red portion of visible light. The wavelengths of infrared radiation are shorter than radio wavelengths and longer than those of light.

c). Fault and Fold

Fault : The line of fracture along which one section of the Earth’s crust displace relative to another section, as a result of vertical or horizontal movement of earth.

Fold : In geology, bends in layered, or stratified rocks. Most stratified rocks were originally sediments laid down as horizontal or near-horizontal layers, or beds. However, not only have they solidifed, but they are usually inclined, or dip, in one direction or another, and they have been tilted.

d). Caustic Soda and Caustic Potash

Caustic Soda: A common name for sodium hydroxide strongly alkaline caustic used in manufacturing soap and paper and aluminum and various sodium compounds
Caustic Potash, It is potassium hydroxide, often used in agriculture and industry

e). S.E.M. and T.E.M.

S.E.M. : scanning electronic microscope an electronic microscope that produces a three-dimensional image, allowing the surface structure of a specimen to be examined.

T.E.M.: transmission electronic microscope.

Q.13 which of the following statements are true and which are false

a) Right kidney in man is slightly lower in position than the left kidney : True
b) Light is not visible : False
c) Steel is more elastic than rubber : True
d) Pitch of man’s voice is greater than that of woman : False
e) Diastolic blood pressure is greater than systolic blood pressure : False
f) Base metal can be converted into gold by heating : False
g) Guava contains more vitamin C than orange : False
h) A light year is a unit of time : False
i) Mercury is heavier than lead ; False
j) Movement of tectonic plates may cause eruption of a volcano : True

Q.14 Give scientific reason of the following :

Colour blindness is more common in men than in women
Light coloured clothes are generally worn in summer
A person is hurt

CSS 2004

1. Write short notes on any two of the following :

a. superconductivity

The pairing of electrons in certain materials when cooled below a critical temperature, causing the material to lose all resistance to electricity flow. Superconductors can carry electric current without any energy losses.
About one third of all metals loose all electrical resistance at temperatures below a specific critical temperature. Many elemental metals are superconductors. Some critical temperatures are: lead Tc = 7.2 K, tin Tc = 3.7 K, niobium Tc = 9.2 K, aluminum Tc = 1.2 K, mercury Tc = 4.2 K, and vanadium Tc = 5.3 K. Compounds can have even higher critical temperatures. YBa2Cu3O7 has a critical temperature of Tc = 92 K and HgBa2Ca2Cu3O8 has a critical temperature of Tc = 133 K. Superconducting wires can carry currents with zero losses up to very high current densities. Above a critical current density Jc, superconductivity is supressed. A typical critical current density is 106 A/cm2. Superconductivity is also supressed by strong magnetic fields.

b. Night Vision Technology

c. Seismograph
a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake). It senses and records the vibrations that radiate out from the earthquake focus. It is a machine for measuring the intensity of earthquakes by recording the seismic waves that they generate.

2. Briefly write down characteristics of :

a. Mercury
Mercurius = [Latin] messenger god, it is the eighth largest planet in the solar system in terms of size and is nearest to the sun.. The Hubble Space Telescope cannot be turned on Mercury because its orbit causes Mercury to always have too much of the Sun in the frame. That kind of exposure to the Sun would destroy the Hubble.
b. Pluto
The furthest and smallest planet from the Sun , the little planet is only 65% the diameter of Earth’s moon and shows little surface detail. Pluto’s orbit is quite elliptical, it is the most distant planet, but it can come closer to the sun than Neptune.
Because of the erratic nature of Pluto's orbit, some scientists insist that it is an asteroid. Also, Pluto rotates in the opposite direction of most of the other planets. However, Pluto has its own moon, Charon. Pluto's name in Roman mythology was the name of the god of the Underworld.

3. Name :
a. The desert mammal which does not drink water :Knagaroo Rat
b. The mixture which can dissolve platinium : Aqua regia
c. The constituent elements of Bronze : Tin and Copper
d. The vitamin whose deficiency causes a disease called beri beri : Thiamine(B1)
e. The electrical device which transform voltage : transformer
f. A nuclear reaction in which two or more than two lighter nuclear are fused together to form a relatively heavier one : nuclear fusion
g. The purest naturally occurring crystalline form of carbon : diamond
h. The hormone secreted by adrenal cortex : aldosterone
i. The three colours combination which produces the sensation of white light : Red green and blue
j. The defect of vision because of which a person cannot see distant objects clearly : Myopia or Short sightedness

4. What are fertilizers ? what do you understand by the term NPK fertilizer ? How do fertilization contribute to the pollution ?

5. Write briefly about any five of the following

a. Nuclear radiation

Three are atomic nuclei of some elements that continuously emit some ultraviolet waves called radiation. When the process of radiation is stimulated through various nuclear processes it is called nuclear radiation. The important nuclear radiation, from a weapon standpoint, are alpha and beta particles, gamma rays and neutrons. All nuclear radiation is ionizing radiation, but the reverse is not true; X-rays for example, are included among ionizing radiation, but they are not nuclear radiation since they do not originate from atomic nuclei.

5.
b. Theodolite
An instrument used in surveying to measure horizontal and vertical angles with a small telescope that can move in the horizontal and vertical planes.
c. Dialysis

d. Enrichment of Uranium
Uranium is a radioactive element that occurs naturally in the earth's surface. Uranium is used as a fuel for nuclear reactors. Uranium-bearing ores are mined, and the uranium is processed to make reactor fuel.
In nature, uranium atoms exist in several forms called isotopes - primarily uranium-238, or U-238, and uranium-235, or U-235. In a typical sample of natural uranium, most of the mass (99.3%) would consist of atoms of U-238, and a very small portion of the total mass (0.7%) would consist of atoms of U-235.
To enrich the uranium, a process called gaseous diffusion was developed by the United States in the 1940s. The gaseous diffusion process creates two products: enriched uranium hexafluoride, and depleted uranium hexafluoride (depleted UF6).
Enriched uranium is used for the defense needs and in making fuel for commercial light water nuclear power reactors. Depleted UF6 has had only limited uses, and since gaseous diffusion was initiated in the 1940s, large quantities of depleted UF6 has accumulated at the gaseous diffusion plants where it was created.
e. Richter Scale

A scale for measuring the magnitude of an earthquake devised by the American seismologist Charles Richter. The device measures the tremors originates during the earth quake and shows its intensity on scale which is from 1 to 10, ten being the highest while one is the lowest of scales in terms of intensity of earth quake.

f. Aqua regia

Aqua regia is a 3:1 mixture of hydrochloric acid and nitric acid. Aqua regia is used to test gold and platinum; it is just about one of the few substances that can dissolve gold and platinum.

g. Iodized salt
Iodine is a natural element required by the human body for proper physical and mental development. It is essential to the production of hormones that affect many parts of the body, particularly muscles, the heart, liver, kidneys and the brain. While most people receive sufficient amounts of iodine from their daily diets, but number of people cannot get it as their soil lacks iodine and because they lack access to foods which contain iodine.
Physical manifestations of iodine deficiency (IDD) include mental retardation, coordination abnormalities, deaf-mutism, spastic diplegia (spastic paralysis of the lower limbs) and dwarfism. During childhood, mild IDD can result in permanent intellectual impairment, with the intelligence quotient lowered by 10-15 points
To overcome the deficiency, Salt has become the most accepted food for iodine fortification because it is one of the few commodities that is almost universally consumed by all sections of a community, and at approximately the same level throughout the year, irrespective of economic level.

6. Which physical quantitites are measured by the following units ?

a. Rutherford : strength of radioactivity
b. Torr: pressure
c. Fermi : length [A unit of length equal to one femtometer (10-15 meter)]
d. Sved berg unit:sedimentation rate
e. Dioptre: power of lense
f. Mho : conductivity
g. Henry: inductance
h. Maxwell: magnetic flux
i. Becquerel: radioactivity
j. Kilo watt hour: power

7. What are the various sources of energy ? How does energy is produced in the surface of the sun ? what will be the future of the sun ?

8. Which are the following statements true and which are false ?
a. a six feet tall lady can see her full image in a three feet Plane Mirror: T
b. Vanadium, a steel gray corrosion resistant metal occur naturally in oxide state :
c. Fibre optics cable carries data in the form of light: T
d. Blue flame is hotter than red flame : T
e. The falling of yellow leaves during autumn is the seasonal time for plants to get rid of accumulated wastes : T
f. Friction is necessary evil: T
g. There are 9.5 x 1015 m in one light year B
h. The velocity of a moving object is least where the pressure is greatest
i. Heat reaches earth from the sun by means of convection : F
j. Meningitis is the inflammation of liver : F

9. Differentiate between the following pairs
a. periscope & pyrometer
periscope is an optical instrument
pyrometer is a meter used to measure high temperature

b. cell & battery

Cell is a small unit/device that delivers an electric current as the result of a chemical reaction
Battery is a device that produces electricity having several cells arranged in parallel or series

c. perimeter & altimeter

the area around the polygon is perimeter and altimeter is the device used for measuring the altitude of some place
d. pelage and plumage
pelage is growth of hair/fur/wool covering the skin of animals while plumage are feathers covering the body of birds

e. smog and smoke

Smog is formed by the interaction of pollutants present in the air in presence of sun light (photochemical smog), it usually restricts visibility and is hazardous to health

Smoke are the thin fine particles usually result from the combustion

10. fill in the blanks

a. the largest planet of solar system is _____ (Jupiter)
b. the temperature of the dead human body on Celsius scale is ___
c. for a large span of a long jump, two things are taken into account viz i angle with which one jumps and ii ____ (speed/angle of projection)
d. the number of the spinal nerves in the man is ____ pairs (31)
e. a primary cell can ___ be charged again (not)
f. Halos around the moon are formed because of the phenomenon of ___ (optical phenomena)
g. Scattering of light ___ the duration of the day (make)
h. Muscle stiffness is caused by a disease called ___ (Parkinsons)
i. Oil rises in a wick of oil lamp on account of a property of matter called ___
j. Muslim scientist Ali al Tabari is famous for his work on ___ (medical sciences)

11. Give scientific reason of the following

1. rain water is more fertile than water from tube well
after falling, the rain drops start moving on slope side, during this movements, the soluble salts and minerals solves from top soil in the flowing water, which increases its fertility, while the rain drops which percolates into deeper regions of soil are note able to absorb more salts and minerals so is less fertile as compared to rain water in streams

2. the man-hole covers are generally round

Manhole covers are round so that is doesn’t get dropped accidentally into the manhole. The round shape requires less space than a square and makes handling easier. Once removed, the cover can be transported by rolling.

3. clothes of a moving dancer bulge

due to movement of dancer the clothes got electric charge, which on fast movement collides with the opposite charge so the clothe bulge inside out

4. peoples are advised not to stand near a fast moving train

people are advised not to stand near a fast moving train as the train in tremendous speed cuts the pressure of air which can disbalance the objects after passing of train present near the railway line

5. the image of a tree looks inverted on the bank of a lake

12. why are the scientists worried about the increase of carbon dioxide gas in the atmposphere ? is there any possible benefit for the mankind in case of global warming ?

13. what do the following scientific abbreviations stand for ?

a. STP standard temperature and pressure/ Shielded Twisted Pair
b. ATP Adenosine Tri-Phosphate
c. PNP proton – neutron – proton
[Positive-Negative-Positive (transistor) ]
d. LAN local area network
e. KWh kilo watt hour
f. BTU British Thermal Unit
g. LDL Low-density lipoprotein
[commonly referred to as bad cholesterol]
h. ROM Read only memory
i. MAF million acre feet
j. SONAR Sound Navigation and Ranging

14. Match the column A and B but write the answers serial wise in column C

S.No. Column A Column B Column C
A Frank whittle Fission C
B Addison Electricity B
C Hahn Genetics D
D Mendel Lightening conductor E
E Benjamin Franklin Semi conductor F
F Bardeen & Brattin Uncertaininty principle G
G Heisenberg Jet engine A
H Fermi Cyclotron I
I Lawrence Electro magnetic waves J
J Maxwell Hertz Fusion
Length H
Steam Engine

15. Choose the best choice in the following statements

1. the three elements needed for healthy growth of plants are :
a. N, P, K b. N, C, P c N, K, C d N, S, P
A

2. the most abundant element in the human body is :
a. Carbon b. Hydrogen c. Oxygen d. Nitrogen
C
3. ammonium nitrate is not used for :
a. Rice crop b. wheat crop c. sugarcane crop d. cotton crop

4. sea divers use a mixture of gases for breathing during diving. The mixture is :
a. 80% He & 20%O2 b. 80% N2 & 20 O2 c. 20%O2 & 40% N2 40% CO2 d. 50% He & 50% O2
B

5. Which one of the following is a water soluble vitamin
a. Niacin b. Ascorbic acid c. trypsin d. riboflavin
B

6. Which of the following enzymes bring about hydrolysis of fats ?
a. urease b. zymase c. maltase d. lipase
D

7. the solution of which acid is used for seasoning of food :
a. formic acid b. acetic acid c. benzoic acid d. botanic acid
D
8. influenza is caused by :
a. fungi b. bacteria c. virus d. protoza
C

9. the blood glucose level is raised by the following except :
a. carbohydrates b. cholesterol c. insulin d. epinephrine
C

10. the energy possessed by water in a dam is :
a. electrical energy b. kinetic energy c. potential energy d. mechanical energy
C

CSS 2005

GENERAL KNOWLEDGE, PAPER - I , (EVERYDAY SCIENCE)

TIME ALLOWED: THREE HOURS__________MAXIMUM MARKS: 100 NOTE: Attempt any TEN questions. All questions carry EQUAL marks. Draw diagrams where necessary and write clearly.

1. Write short notes on any TWO of the following: (5 each)

(a) Communication Satellite (b) Geo-thermal Energy (c) Ultrasonics
2. Write short notes on the life and work of the following: (5 each)

(a) AI-Biruni (b) Ibn Al - Haitham

3. Name: (1 each)

(a) The alloy which consists of copper and tin.

(b) The device used to measure radioactivity.

(c) The organ in (he human body which is responsible for the digestion of protein only

(d) The instrument used to measure very high temperature.

(e) The scientist who designed the first internal combustion engine used to burn low grade fuel.

(f)The scientist who asserted the earth to be a huge magnet.
(g) The metal known as quick silver.

(h) The device which converts the chemical energy into electrical energy.

(i) The first person to orbit the earth in space.

(j) The scientist who discovered water.

4-Write briefly about any FIVE of the following: (2each)

(a) Shock Waves (b) Sound Barrier (c) Solar Cell (d) Super Fluid (e) Tsunami (f) Photovoltaic Cell (g) Hygrometer

5. Which physical quantities are measured by the following units? (1 each)

(a) Coulomb (b) Weber (c) Tesla (d) Siemen (e) Rutherford (f) Faraday (g) Angstrom (h) Parsec (i) Degree (j) Steradian
6. How do our domestic and industrial activities pollute water? Explain with reference to two important industries of Pakistan. (5,5)

7- Which of the following statements are True and which are False: (1 each)

(a) To stay in the sunlight while circling the globe at the equator, one has to move with a speed of 1670 km/hour.

(b) Infrared waves have more wavelengths than the red colour.

(c) liver produces bile which is involved in the breakdown of fats.

(d) A secondary cell can be charged again.

(e) Nucleic acids are responsible basically for protein synthesis in the human body,

(f) The quality of gasoline is checked by its octane number.

(g) image in a plane mirror is not laterally inverted.

(h) Horse power is the unit of mechanical energy.

(i) Sound travels faster in vacuum than in water.

(j) Nitrogen is the most occurring element in the human body.

8. Differentiate between the following pairs. (2 each)

(a) Radiotherapy & Chemotherapy (b) Penumbra & Umbra (c) Springtides & Neaptides

(d) Vertebrates &. Invertebrates (e) Fluorescent light & Neon signs

9. Fill in the blanks: (1 each) '

a)The variation in the blood flow can be heard with an instrument called __

b)There is a place in the retina where the light sensitive cells are interrupted by the presence of the optic nerve head. It is known as __
(c) The study of human population is called __.

(d) Human beings belong to species called ___ .

(e) defect of eye due to which nearly located objects arc not clearly visible is called __ .

(f) About _ __ _ of the human body consists of water.

(g) All of the oxygen that you breathe has been produced by the splitting of water during __ ___.

(h) The important ore of Chromium is _.

(i) _ __ acid was discovered by Jabbar bin Hayyan.

(j) The measurement of rainfall is made by an instrument known as _.

10. What are the main reasons of water - logging in Pakistan? How does a tube-well reclaim a water logged soil? (5,5)

11 . Give scientific reason of the following: (2 each)
(1) Pole star is always seen in the north.
(2) We never see birds urinating.
(3) Pasteurized milk has more nourishment than the ordinary boiled milk.
(4) Bees die when they sting human beings.
(5) Cloudy nights are usually warmer than the clear ones.
12. What are Nuclear reactors? How the Electrical energy is produced by Nuclear Power Plants? Name the devices which convert
(1) Mechanical energy into electrical energy
(2) Heat energy into mechanical energy
(3) Electrical energy into mechanical energy
(4) Electrical energy into sound energy
(5) Sound energy into electrical energy

13. What do the following scientific abbreviations stand for: (1 each)
(a) I-1DL (b) McV (c) UHF (d) LED (e) LCD (f) BASIC (g) MASER (h) ETT (i) HST
j) DBS

14-Compare the columns A and B and write the correct answer from the Column to the Column A (serial wise) in Column C,
Column A
1. Gunpowder
2. Marble
3. Ozone
4. Argon
5. Quartz
6. Mirage
7. Gold
8. Modulation
9. Length
10. Solar Energy

Colum B
Sulphur dioxide
Fermi
Aqua regia
Beta - Particle
Frequency
Calcium Carbonate
Dobson Units
Silicon dioxide
Total internal reflection
Blue purple light

Column C
1.
2.
3.
4
5
6
7
8
9
10

15. Choose the best choice in the following statements.
(I) Select the correct association :

(a) Oxidation-Loss of an electron (b) Oxidation - gain of an electron (c) Reduction - gain of a neutron (d) Reduction - loss of a neutron
(2) Radioactive isotope of Uranium used in Nuclear Bomb is:

(a)92 U 235(b)92 U 234
c)92 U 233
d)92 U 238

(3) Human population growth is greatest in developing countries because:
(a) the birth rate is high in developing countries (b) the death rate is high in developing countries

(c) much of the population has already reached the child bearing age

(d) most of the world's population lives in industrialized countries

(4) Which woody raw material is used for the manufacture of paper pulp?
(a) Cotton (b) Poplar (c) Bagasse
(d) Rice straw

(5) Rectified spirit contains alcohol about:

(a) 80% (b) 95% (c) 70%

(d) 85%

(6) Which of the following elements is not present abundantly in earth's crust: (a) Silicon (b) Radium (c) Aluminum

(d) Carbon

(7) The famous book; Al - Qanoun was written by the Muslim scientist: (a.) Jabar bin Hayyan (b) Zakariya Al - Razi (c) Abu Ali Sina

(d) Abdul Qasim Majreeti

(8) Basic metals can be converted into gold by:

(a) heating (b) beating (c) artificial nuclear radioactivity(d) chemical reaction

(9) A light year is a unit of:

(a) time (b) energy (c) length (d) mass

(10) One of the main function of the earth's ozone layer is to:

(a) prevent global warming (b) filter out ultraviolet rays (c) absorb pollution (d) all of the above

Note: (I) Attempt ONLY TEN questions. All questions carry equal marks.
(ii) Extra attempt of any question or any part of the question will not be considered.
(iii) Draw diagrams where necessary and write clearly.

Q.1. Write short notes on only TWO of the following: (5 each)
(a) Magnetic Resonance Imaging
(b) Tidal Energy
(c) Supersonics

Q.2. What is Pollen Allergy? What preventive measures are to be taken to avoid it? (4, 6)

Q.3 Name. (1 each)
1) The alloy consisting of metals copper, zinc and nickel.
2) The instrument specially designed for recording earthquake waves,
3) The electrical device which converts sound energy into electrical energy.
4) The ore of mercury metal.
5) The device with which variation of blood flow can be heard.
6) The element, which is abundantly present in the human body.
7) The scientist who discovered penicillin.
8) The astronaut who first landed on the surface of the moon.
9) The desert mammal, which does not drink water.
10) The mode of heat transfer from the sun to the earth.

Q.4. Write briefly (not more than four to five sentences) about only FIVE of the following: (2 each)
(a) Plaster of Paris
(b) Theodolite
(c) Bird Flu
(d) Gene
(e) Thermistor
(f) Thermostat
(g) Pedometer

Q.5. Which physical quantities are measured by the following units? (1 each)
(a) Foot-Pound
(b) Torr
(c) Slug
(d) Guass
(e) Acre Foot
(f) Becquerel
(g) Erg
(h) Dyne
(i) Gilbert
(j) Dioptre

Q.6. What is the difference between Dam and Barrage? What benefits are obtained by constructing a big dam? (2, 8)

Q.7. Which of the following statements are True and which are False: (1 each)
1) Pitch of the dog sound is greater than the pitch of the cat sound.
2) Ultraviolet light is visible but infrared light is not visible.
3) Earthquakes are the lamps illuminating the structure of the earth’s exterior.
4) Electricity does not move through the wire but through a field around the wire.
5) A guava contains more vitamin C than an orange.
6) Sound travels faster in iron than in air.
7) Wheat Bridge is the name of an electrical circuit.
8) Morphine can cause constipation and lowering of blood pressure.
9) A concave lens is used for the correction of the Hyperphobia.
10) The nucleic acids are responsible for proteins synthesis in the human body.

Q.8. Differentiate between the following pairs: (2 each)
(a) Telemeter and Multimeter
(b) Perimeter and Altimeter
(c) Periscope and Microscope
(d) Nucleon and Photon
(e) Cusec and Comet

Q.9. Fill in the blanks: (1 each)
1) The branch of zoology, which deals with the study of insects is called __________
2) The disease _________is caused by the deficiency of Vitamin B1 (Thiamine).
3) Oil rises in a wick of oil lamp because of a property of matter, called ________
4) The production of generally identical reproduction is called as ________
5) ___________ is the fastest planet of the solar system.
6) Mercury metal is _________ times heavier than water.
7) Relative density of milk is measured by an instrument known as __________
8) The temperature of a human body is measured by an instrument known as _________
9) Gold and silver are known as _________ metals.
10) The amount of ozone in the atmosphere is expressed in __________.

Q.10. What is global warming? Is there a sunny side to global warming? If yes, explain. (4, 6)

Q.11. Give scientific reasons of the following: (2 each)
a) Why do some people snore?
b) Why do we sometimes sleep walk?
c) Climber bends forward while climbing a mountain.
d) The manhole covers are generally round.
e) Roads are bent inwards on curves.

Q.12. What are vitamins and minerals? Which vitamins and minerals play major role in the development of bones? (4, 6)

Q.13. what do the following scientific abbreviations stand for? (1 each)
(1) CRO
(2) SARS
(3) BOT
(4) AMU
(5) EMF
(6) ADH
(7) STP
(8) GeV
(9) NTP
(10) CRT

Q.14. Compare the columns A and B and write the correct answer from the column B corresponding to the column A (serial wise) in column C. (1 each)

Column A Column B Column C

(1) Geiger Muller Counter Semi Conductor (1)
(2) Newton Magnet (2)
(3) Addison Electricity (3)
(4) Bardeen and Brattin Radioactivity (4)
(5) Weber Fehner’s Law E.M Induction (5)
(6) Benjamin Franklin Lightening Conductor (6)
(7) Decibel Gravitation (7)
(8) Dr. Gilbert Water (8)
(9) Henry Cavendish Sound (9)
(10) Faraday Non-conductor (10)

Q.15. Choose the best choice in the following statements:
1) One of the countries through which equator passes is:
(a) Kenya
(b) Malaysia
(c) Malta
(d) Pakistan

2) Copper can be converted into gold by:
(a) Artificial radioactivity (b) heating (c) Electroplating (d) Chemical reaction

3) The three elements needed for healthy growth of plants are:
(a) N, P, K
(b) N, C, P
(c) N, K,
(d) N, S, P

4) Clocks, which moves with the velocities compareable with the velocity of light, run:
(a) fast
(b) slow
(c) equal to the velocity of light
(d) with zero velocity

5) Max Planck received the noble prize in Physics in 1918 for his discovery of:
(a) electron
(b) energy quanta
(c) photon
(d) positron

6) Bronze medal is made up of metals:
(a) (copper,nickel)
(b) (copper, tin)
(c) (copper, silver)
(d) (copper, zinc)

7) Addison’s disease is caused by the excessive secretion of:
(a) Antiduretic Harmone
(b) Luteinising Harmone
(c) Melanophore stimulating Harmone
(d) Adrenocorticotrophic Harmone

8) Development of calf muscles in ladies who wear high heels is a common example of:
(a) Natural Selection
(b) inheritance of acquired character
(c) Use and disuse of organ
(d) Artificial selection

9) Margalla Hill is a branch of:
(a) Karakorum range
(b) Hindukash range
(c) Himalaya range
(d) Nanga Parbat range

10) Humming bird belongs to a category called:
(a) Ectotherm
(b) Endotherm
(c) Exotherm
(d) Heterotherm.

Everyday Science Paper 2007
FEDERAL PUBLIC SERVICE COMISSION
COMPETATIVE EXAMINATION FOR RECRUMENT TO POSTS IN BPS – 17, UNDER THE FEDERAL GOVERNMENT, 2007

GENERAL KNOWLEDGE, PAPER – I
(EVERY DAY SCIENCE
PART – I (SUBJECTIVE)

PART –II (MCQ TYPE) Question paper bearing 50 marls will be given to you at 10:40 AM which is to be solved on OMR sheet

TIME ALLOEED :100 MINUTES MAXIMUM MARKS :50
NOTE: (i) Attempt ONLY FIVE question. All questions carry EQUALL marks.
(ii) Extra attempt of any question or any part of the attempted question will not be
considered.
(iii) canidate must draw two straight lines(================) at the end to
separate each question attempted in Answer Book.

Q.1. write short notes on any two of the following (5 each)
(a) Laser
(b) Nuclear reactor
(c) Ceramics

Q.2. Write briefly (not more than three to four sentences) about any five of the following ( 2 each)
(a) Asteroids
(b) Black Hole
(c) Aurora
(d) Sedimentary Rock
(e) Epiphytes
(f) Ionosphere

Q.3 Differenitate between the following pairs: (2 each)
(a) BIT and BYTE
(b) RAM and ROM
(c) Epidemic and endemic
(d) Photosynthesis and respiration
(e) Herbivores and carnivores

Q.4 (i) What are the endocrine glands? Name any Two. (2+2)
(ii) Name the parts of human body from where the following secreted: (6)
(a) Insulin
(b) thyroxin
(c) adrenalin
(d) oestrogen
(e) cortisol
(f) Testosterone

Q.5 (a) Briefly discuss the classification of plants giving suitable examples: (6)
(b) define the following: (4)
(1) Vaccine
(2) Antibiotic
(3) Solar eclipse
(4) Exothermic

Q.5 Give scientific reasons of the following: (2 each)
(a) Why climbers get their food by climbing on other trees ?
(b) Mars is called red planet.
(c) Vitamin D is the essential component of the bidy.
(d) The weight of the oblect is less at the equator than at the poles.
(e) Why do some people snore?

Q.7 Give description of satellites and also give their functions. (10)

Q.8 (a) What is balance diet? (5)
(b) How are characters transmitted from parents to offspring? (5)

TIME ALLOWED: 100 MINUTES……..........……Maximum Marks: 50

NOTE:
(i) Attempt ONLY FIVE questions. All questions carry EQUAL marks.
(ii) Extra attempt of any question or any part of the attempted question will not be considered.

Q.1. Write briefly about the life and scientific contributions of the following Muslim Scientists: (5+5)

a. Muhammad bin Musa Al-Khawarizmi
b. Abu Ali Sina

Q.2. Differentiate clearly between the following pairs: (2 each)

a. Fission and fusion
b. Star and Planet
c. Pollination and Fertilization
d. Telescope and Microscope
e. Antibiotics and Vaccines

Q.3.
a. Discuss briefly the SOLAR SYSTEM. (6)
b. How are EARTHQUAKES caused? (4)

Q.4. Write briefly (not more than four to five sentences) about any FIVE of the following: (2 each)

a. Supernova
b. Radioactivity
c. Laser
d. Semiconductors
e. Geothermal Energy
f. Computer Virus
g. Pasteurization

Q.5.
a. What are HORMONES? Name four important hormones and describe their functions in the human body. (2+4)

b. Explain the structure and function of an ANIMAL CELL with a labeled diagram. (2+2)

Q.6.
a. What are the essential nutrients of BALANCED DIET? Describe one such nutrient in detail explaining its role in the metabolism. (2+4)

b. What do the following scientific abbreviations stand for? (1/2 each)

i. PVC ii. BCG iii. ECG iv. CFC v. LPG vi. DNA vii. AIDS viii. TNT

Q.7.
a. Define ENERGY. Name four renewable sources of energy. How can our country come out of Energy Crisis? (1+2+3)

b. Write a brief note on CERAMICS. (4)

Q.8.
a. Describe very briefly the working of a CAMERA. How does it resemble in its function with that of the HUMAN EYE? (3+3)

b. What are PLASTCS? Describe briefly their characteristics and Limitations. (1+3)

TIME ALLOWED:
(PART-I) 80 MINUTES MAXIMUM MARKS: 50
(PART-II) MINUTES MAXIMUM MARKS: 50

NOTE:
(i) First attempt PART-I (MCQ) on separate Answer Sheet which shall be taken back after 80 minutes.
(ii) Overwriting/cutting of the options/answers will not be given credit.

Q.1. Select the best option/answer and fill in the appropriate Box on the Answer Sheet: (50)

(1) Person with following blood group are considered to be universal recipient.

a. A+
b. B+
c. AB+
d. O+
e. None of these

(2) Study of life in outer space is known as:

a. Endobiology
b. Exobiology
c. Enterobiology
d. Neobiology
e. Micro biology

(3) The name of the common mineral salt present in seat is:

a. Calcium Oxalate
b. Potassium Sulphate
c. Sodium Chloride
d. Iron Sulphate
e. None of these

(4) Sensitive layer of the eye is:

a. Choriods
b. Sclerotic
c. Retina
d. Cornea
e. None of these

(5) Laughing gas has chemical composition of following two elements.

a. Nitrogen + Hydrogen
b. Nitrogen + Carbon
c. Nitrogen + Oxygen
d. Oxygen + Carbon
e. None of these

(6) Dr. Abdus Salam of Pakistan was one of the contributors of the unification of:

a. Electromagnetic force and gravitational force
b. Electromagnetic force and weak nuclear force
c. Gravitational force and weak nuclear force
d. Weak nuclear force and strong nuclear force
e. None of these

(7) Which triplet in DNA codes for valine:

a. CTT
b. AGU
c. CAT
d. AAT
e. None of these

(8) What is the chance of diabetic baby born to parents both heterozygous normal ?

a. Zero
b. ¼
c. ½
d. ¾
e. None of these

(9) Which of the following is not a part of Darwinism:

a. Over production
b. Natural selection
c. Inheritance for acquired characters
d. Competition for survival
e. None of these

(10) Role of biotechnology in the production of food based on:

a. Decomposition
b. Respiration
c. Digestion
d. Fermentation\
e. None of these

(11) Which form of drug abuse involves most risk of infection with the HIV (AIDS) virus:

a. Cigarette smoking
b. Using alcholo
c. Injection of heroine
d. Taking too much aspirin
e. None of these

(12) Founder of modern astronomy was:

a. Archimedes
b. William Gilbert
c. Nicolas Copernicus
d. Michael Faraday
e. None of these

(13) The instrument which measures very high temperature is:

a. Manometer
b. Thermostat
c. Chronometer
d. Pyrometer
e. None of these

(14) The science which deals with study of manners and customs of people is:

a. Ethnology
b. Morphology
c. Ethics
d. Genetics
e. None of these

(15) Chemical used to kill rats and mice are:

a. Insecticides
b. Rodenticides
c. Fungicides
d. Herbicides
e. None of these

(16) Dry ice is:

a. Methane hydrate
b. Liquid Nitrogen
c. Solid Carbon dioxide
d. Frozen Water
e. None of these

(17) Chemical name of vinegar is:

a. Sodium Nitrate b. Dilute acetic acid
c. Chloride of lime
d. Calcium
e. None of these

(18) Defeciency of following vitamin decreases hemoglobin production:

a. Biotin
b. Thiamine
c. Niacin
d. Pyridoxine
e. None of these

(19) Hygrometer is used for measuring the:

a. Speed of sound
b. Density of milk
c. Humidity of air
d. Specific gravity of liquids
e. None of these

(20) Bronze is an alloy of:

a. Copper and Zinc
b. Tin and Zinc
c. Copper and Tin
d. Iron and Zinc
e. None of these

(21) Which of the following is most elastic ?

a. Steel
b. Rubber
c. Glass
d. Sponge
e. None of these

(22) Orbital period of the planet Mercury around the sun is:

a. 88 days
b. 365 days
c. 2 years
d. 98 days
e. None of these

(23) The most splendid and the most magnificient constellation on the sky is:

a. Orion
b. Columbia
c. Canis Major
d. Taurus
e. None of these

(24) “Black holes” refer to:

a. Hole occurring in heavenly bodies
b. Bright spots on the sun
c. Collapsing objects of high density
d. Collapsing of low density
e. None of these

(25) Eugenics is the study of:

a. Altering human beings by changing their genetic components
b. People of European region
c. Different races of mankind
d. Genetic of plants
e. None of these

(26) The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called:

a. Aphelion
b. Perihelion
c. Perigee
d. Apogee
e. None of these

(27) Diamond is a very expensive ornament. It is composed of a single element:

a. Carbon
b. Gold
c. Silver
d. Platinum
e. None of these

(28) Which of the following layers make radio transmission possible?

a. Troposphere
b. Ionosphere
c. Mesosphere
d. Stratosphere
e. None of these

(29) Which of the following explains the reason why there is no total eclipse of the sun?

a. Size of the earth in relation to that of moon
b. Orbit of moon around earth
c. Direction of rotation of earth around sun
d. Area of the sun covered by the moon
e. None of these

(30) Television signals are converted into light signals by:

a. Optical fiber
b. Transistor
c. Decoder
d. Photo diode
e. None of these

(31) Where do most of Asteroids lie?

a. In asteroid belt between the orbits of Mars and Jupiter
b. In asteroid belt between the orbits of Mars and Venus
c. In asteroid belt between the orbits of Jupiter and Venus
d. Everywhere in the sky
e. None of these

(32) The number of spark plugs needed in a diesel engine is:

a. 2
b. 3
c. 0
d. 4
e. None of these

(33) The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?

a. 4 days
b. 12 days
c. 16 days
d. 8 days
e. None of these

(34) The term ‘Blue Shift’ is used to indicate:

a. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object.
b. Turning a star from white to blue
c. In future sun would become blue
d. Black hole was blue at its start
e. None of these

(35) Kilowatt-hour is a unit of:

a. Power
b. Electric Current
c. Energy
d. Time
e. None of these

(36) Fuel used in a Fast Breeder Reactor is:

a. Uranium Oxide
b. Uranium Plutonium carbide
c. Uranium Plutonium Oxide
d. Uranium thorium Oxide
e. None of these

(37) Monsoon is caused by:

a. Seasonal reversal of winds
b. Revolution of earth
c. Movement of clouds
d. Rise in temperature
e. Rain forests

(38) Which of the following atmospheric layers help in radio communication?

a. Exosphere
b. Ionosphere
c. Troposphere
d. Stratosphere
e. Ozone layer

(39) A moderator is used in nuclear reactor in order to:

a. Accelerate the neutrons
b. Slow down the speed of the neutrons
c. Increase the number of elections
d. Decrease the number of electrons
e. None of these

(40) Sedimentary rocks are:

a. Porous
b. Hard
c. Rough
d. Brittle
e. Volcanic

(41) Which one of the following is a non-metallic mineral?

a. Manganese
b. Magnesium
c. Gypsum
d. Bauxite
e. None of these

(42) Ozone layer prevents the following radiation from entering the atmosphere:

a. Infra-red
b. Ultraviolet
c. X-rays
d. Gamma rays
e. None of these

(43) The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from:

a. Ionosphere
b. Troposphere
c. Mesosphere
d. Stratosphere
e. None of these

(44) Yeast is used in making bread because it produces:

a. Carbon dioxide
b. Sugar
c. Bacteria
d. Oxygen
e. None of these

(45) Oasis is associated with:

a. Glaciers
b. Desert
c. Islands or Last Island
d. Volcanoes
e. Fertile land

(46) Quartz crystal in quartz watches work on the principle called:

a. Photoelectric effect
b. Stark effect
c. Thermionic effect
d. Piezo-electric effect
e. None of these

(47) The fruits without seed, like banana, are called:

a. seedless fruits
b. parthenogenesis fruits
c. parthenocarpic fruits
d. placental fruits
e. Organic fruits

(48) Animal which captures and readily kills living animals for its food is called:

a. Parasite
b. Scavenger
c. Predator – not or moderator
d. Mammal
e. None of these

(49) In a railway track, two rails are joined end to end with a gap tin between them because:

a. Steel can be saved
b. Accidents due to contraction in winter can be avoided
c. Air gaps are necessary for bearing the weight of running train
d. Accidents due to expansion in summer can be avoided
e. All of these

(50) Name the famous book of Ibn-Sina in which he discussed human physiology and medicine:

a. Al-Qanoon
b. Al-Masudi
c. New Renaissance
d. Tadhkira
e. None of these

NOTE:
(i) Attempt ONLY FIVE questions from PART-II. All questions carry EQUAL marks.
(ii)Extra attempt of any question or any part of the attempted questions will not be considered.

Q.2. Write short note on the following by giving their exact life span and contribution to the field of science (Accurate facts will be appreciated) (5x2)

(a) Umer Al Khayam
(b) Zakariya Al Razi

Q.3. Differentiate between ANY FIVE of the following pairs. (2x5)

(a) Umbra and Penumbra
(b) Heavy water and hard water
(c) Smog and Smoke
(d) Myopia and Hypropia
(e) Lava and Magma
(f) Periscope and perimeter
(g) X-rays and Gamma rays

Q.4. Sun is glorious star in our sky. Write down its characteristics with reference to the following date:

(a) Distance from earth
(b) Mean distance from center of galaxy
(c) Velocity around centre of galaxy
(d) Revolution period around centre of galaxy
(e) Equatorial diameter
(f) Rotation period at the equator
(g) Core temperature
(h) Solar wind
(i) The lovely Diamond Ring effect
(j) Future of sun

Q.5. Write briefly (not more than three to four senetences) about ANY FIVE of the following: (2x5)

(a)Allotropy
(b) Nebula
(c) Enrichment of Uranium
(d) Aqua Regia
(e) Greenhouse effect
(f) Igneous rocks

Q.6. (a) Define GENETIC ENGINEERING. In how many ways Genetic Engineering can be applied in different fields of life? Does it benefit society ? Discuss. (1+3+2)

b. What do the following abbreviations stand for? (1/2 each)

i. SONAR ii. CNS iii. PTFE iv. LDL v. SARS vi. GUT vii. BASIC viii. BTU

Q.7. (a) What are MINERALS? Discuss ANY TWO physical properties thereof. Also mention the names of four precious minerals of high commercial value.

(b) Define the following: (1 each)

(a) Amphibion (b) Synchronous satellite (c) Big Dipper (d) Fermentation (e) Millennium Bug

Q.8. (a) Define RECEPTORS in man. Name different receptor organs in human body. Also discuss ANY TWO of them briefly.

(b). Give Scientific reasons of the following: (1 each)

i. The dogs pant, the birds open their mouth and the elephants move rapidly their ears.
ii. The manholes covers are generally round.
iii. A geostationary satellite appears standstill to a viewer on the equator of earth.
iv. We never see birds urinating.
v. Pasteurized milk has more nourishment than the ordinary boiled milk.

Q.9. (a) Highlight the similarities and differences between animals and plants. (3+3)

(b) Write short note on ANY TWO of the following. (2 each)

(i) Teleprinter (ii) Dengue Virus (iii) Vacuum Cleaner

Every Day science Paper 2010

Question 1. Select the best option and fill in the appropriate Box on the answer sheet: (50 Marks)

1. Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by :

a) Conduction
b) Convection
c) Radiation
d) Reflection
e) None of these

2. A time can come when we will be able to design a machine which can go on working for ever without the expenditure of energy. Is it possible ?

a) No
b) Yes
c) In due course time
d) Very soon
e) None of these

3. The measurement of rainfall is made by an instrument known as :

a) Hydrometer
b) Barometer
c) Hygrometer
d) Pedometer
e) None of these

4. Light year is a unit of :

a) Distance
b) Time Period
c) Light intensity
d) Time
e) none of these

5. Three elements needed for the healthy growth of plants are :

a) N,P,K
b) N,C,P
c) N,K,C
d) N,S,P
e) none of these

6.Copper can be converted into gold by :

a) Heating
b) Artificial Radioactivity
c) Electroplating
d) Chemical reaction
e) None of these

7. In winter an iron pipe feel colder than a wooden window . This is because wood is :

a) Conductor
b) non-Conductor
c) Semi- Conductor
d) Not a solid while iron is a solid
e) None of these

8. The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least :

a) 1120 ft
b) 120 ft
c) 56fft
d) 100 ft
e) None of these

9. It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the:

a) pitch
b) Frequency
c) Time period
d) Quality
e) None of these

10. When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is :

a) Visible
B) Transparent
c) Invisible
d) opaque
e) None of these

11. A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be :

a) 6 feet
b) 12 feet
c) 4 feet
d) 3 feet
e) None of these

12. The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use :

A) red waves
b) Infrared waves
c) Ultrasonic
d) super sonic
e) None of these

13. In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called :

a) Chemical Reaction
b) Nuclear reaction
c) Fission nuclear reaction
d) Fusion nuclear reaction
e) None of these

14. Parsec is a unit of :

a) Energy
b) Time
c) Power
d) Distance
e) None of these

15. German Silver is an alloy of:

A) Zn + Ni
b) Cu + Zn
c) Cu + Ni
d) Cu + Sn
e) None of these

16. The Continent Antarctica lies at the:

a) North pole b) South pole c) middle of the earth d) Equator
e) None of these

17. The temperature of the dead body is:

a) 0 'C
b) 37 '
c) room temperature
d) temperature of the place where it is kept
e) None of these

18. Lactometer is a type of Hydrometer which is used to measure the specific gravity of :

a) Honey
b) Water
c) Milk
d) olive oil
e) None of these

19. Cusec is a unit of :

a) Area
b) Time
c) Distance
d) mass
e) None of these

20. The deepest place on earth is :

a) Trench
b) Mariana Trench
C) Mangrove
d) Groove
e) None of these

21. Twinkling of stars is caused by :

a) Reflection of light
b) Polarization of light
c) refraction of light
d) Interference of light
e) None of these

22. Magnifying power of a simple microscope can be increased by :

a) increasing focal length of the lens
b) Decreasing focal length of the lens
c) Lens of large aperture
d) lens of short aperture
e) None of these

23. Bronze medal is made up of metal :

a) Copper , Zinc
b) Copper , Nickle
c) Coppe4r , Tin
d) Sopper , Silver

24. One of the countries through which equator passes is :

a) Kenya
B) Pakistan
c) Malaysia
d) Malta
e) None of these

25. A very important practical application of properties of matter is hoeing or "godi" practiced by the farmers. This property of matter is called :

a) Elasticity
b) Stress
c) Capillarity
d) Strain
e) None of these

26. It is observed that the total pressure exerted by air on the man of average siz is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of :

a) An equal and opposite pressure acts from inside
b) of the height of a man
c) of gravity
d) Earth pulls the man upward
e) None of these

27) A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect :

a) Current
b) Voltage
C) nuclear Radiation
d) power
e) None of these

28. A body can escape the gravitational pull of the earth if it is thrown up with a velocity of:

a) 25 miles per sec
b ) 60 miles per sec
c) 7 miles per sec
d) 10 miles per sec
e) None of these

29. Night vision is possible with the help of :

a) Red light
b) Violet light
c) Infrared Rays
d) Ultra violet Light
e) None of these

30. Myopia is a defect of human eye. it can be corrected by using a lens called :

a) Convex lens
b) Concave lens
c) Cylindrical lens
d) Plano convex lens
e) None of these

31. Walnuts can be broken in the hand by squeezing two together but not one. It is because of :

a) Work done
b) Power
c) Energy
d) Volume
e) None of these

32. The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a

a) Diatonic scale
b) Fahrenheit Scale
c) Richter scale
d) Celsius Scale
e) None of these

33. The planet Mercury completes one rotation around the sun is
a) 88 days
b) 365 days
c) 98 days
d) 60 days

e) None of these

34. Fossils found in the lowest geological strata are generally most :

a) Advance
b) Complex
c) Primitive
d) Specialized
e) None of these

35. Evolution can be described as :

a) A continuing process
b) A catastrophic event in the past
c) Static
d) The attaining of an ideal type
e) None of these

36. What is the only source of new alleles?

a) Crossing over
b) independent assortment
c) Mutation
d) Fertilization
e) None of these

37. Polygenic characteristic are controlled by :

a) Dominant genes
b) Recessive genes
c) Multiple genes
d) Mutated genes
e) None of these

38. Which of the following , lists the four stages of food processing in order?

a) ingestion , digestion , absorption , elimination
b) digestion , ingestion , absorption , elimination
c) ingestion , absorption , elimination , digestion
d) absorption , digestion , ingestion , elimination
e) None of these

39. In humans , most nutrient molecules are absorbed by the :

a) small intestine
b) stomach
c) liver
d) large intestine
e) None of these

40. The energy needed to fuel essential body processes is called :

a) Essential nutrient level
b) Basal metabolism
c) None of these
d) recommended daily allowance
e) Optimum energy intake

41. Which of the following is an organic molecule needed by the body in small amounts?

a) Protein
b) Vitamin C
c) Zinc
d) Monosaccharide
e) None of these

42. Inhaled air passes through which of the following in the last?

a) Bronchiole
b) Larynx
c) Pharynx
d) Trachea
e) None of these

43. Which of the following is a form of sexual reproduction?

a) Hermaphroditism
B) Fission
c) Fragmentation
d) Budding
e) None of these

44. Cobalt is a material which is :

a) Strongly attracted by a magnet
B) Not attracted by a magnet
c) not a magnet
d) Weakly attracted by a magnet
e) None of these

45. Laughing gas has chemical composition of the following two elements which are :

a) Nitrogen + Hydrogen
b) Nitrogen + Carbon
c) Nitrogen + oxygen
d) Oxygen + Carbon
e) None of these

46. Hepatitis A is transmitted to different individuals by :

a) Water
b) Sneezing
c) Spit
d) Foeces
e) None of these

47. The unit that coordinates different devices of the computer system is :

a) ALU
b)Register
c) Control unit
d) Logical instruction
e) None of these

48. The most abundant element present is in the human body is :

a) Nitrogen
b) Oxygen
c) Carbon
d) Hydrogen
e) None of these

49. Cancer can be treated by :

a) Antibiotics and vaccines
b) Radiotherapy and antibodies
c) Chemotherapy and radiotherapy
d) Antibodies and chemotherapy
e) None of these

50. Animals obtain carbon dioxide mainly from :

a) Starch
b) Sucrose
c) Glucose
d) Glycogen
e) None of these

Question # 02 : Write shot note on the following by giving their exact life span and contributions to the field of science. ( Accurate fact will be appreciated) (10)

a) Al- Beruni
b) Ibn- al - Haitham

Question # 03: What do you know about hereditary disease ? Comment how they are transferred from parents to offsprings ? (10)

Question # 04: Write briefly any five of the following: (Answer in three or four sentences) (10)

a) Plaster of Paris
b) Reflex Action
c) Pace Maker
d) Swine flue
e) Microwave oven
f) Internet
g) Voltage Stabilizer

Question # 05:
A) What is global warming ? Is there any a sunny side to global warming ? If yes , explain. (5)
B) What makes the seasons happen ? (5)

Question # 06: In which region of the world , the following animals are found? Give two main characteristics of each. (10)

a) Blind dolphin
b) Kangaroo
c) panda
d) Kiwi
e) Penguin

Question # 07:
A) In which organ these parts are present in animals or human body ? (5)

B) Describe the function of each briefly : (5)

1. Coronary artery
2. Sino- Auricular Node
3. Aortic valve
4. Auricle

a) Hydrometer and Hygrometer
b) Perimeter and Telemeter
c) Isotopes and Isomers
d) Flying mammal and Bird
e) Vertebrates and Invertebrates

Question # 09:
A) What are pesticides? Explain how these are dangerous to human beings?
B) What do the following scientific abbreviations stand for?

1) STP
2) LORAN
3) SONAR
4) MAF
5) MeV
6) MASER
7) AWACS
8) CCTV