Central Superior Services (CSS) Pakistan Competitive Examination Past Papers GENERAL KNOWLEDGE, Everyday Science ~ Nowlg

GENERAL KNOWLEDGE, PAPER-I
(EVERYDAY SCIENCE)

Read Online Past Examination Papers of Central Superior Services (CSS) Pakistan Competitive Examination

CSS Past Papers Everyday Science 2015

PART – II (Subjective)

Q.2. (a)Iibn-e Batoota’s famous book Rihalah is an important source of history and
geography. Justify it. (5)
(b)Albarouni is recognized more as natural scientist rather theorist. Comment. (5)(10)
Q.3. (a)How solar eclipse and lunar eclipse are caused? (5)(b)Discuss the function of kidneys in human body. (5)(10)
Q.4. (a)Describe briefly the principle working of two of the followings
(i)Television (ii)Microwave oven (iii)RADAR (5)
(b)What is current status and future perspective of BIOTECHNOLGY in Pakistan? (5)(10)
Q.5. (a)What do mean by night vision technology? (5)(b)How Energy crises can be minimized in Pakistan. (5)(10)
Q.6. (a)Write short note on Seismography. (5)(b)Differentiate between
(i)Cell and battery (ii)Smog and Smoke (5)(10)
Q.7. (a)What do you understand by Pollen Allergy. (5)(b)Write down short note on any two of the following.
(i)Antibiotics (ii)Hormones (iii)Green House effect? (5)(10)
Q.8. (a)Write down note on Forensic Science and Criminology. (5)(b)What are fertilizers? What do you understand by NPK Fertilizers? (5)(10)
Q.9. (a)What is Anemia? What are its symptoms and causes? (5)(b)Write short note on space shuttle. (5)(10)

CSS Past Papers Everyday Science 2014

PART – II (Subjective)

Q. No. 2. Discuss the contribution of Muslim scientists in the development of Astronomy,Algebra and Trigonometry.
Q. No. 3. Give brief answers to the following questions: (2 each)(a)Why do we bring our hands close to our mouth while shouting across to someone far away?
(b)Why do we lean forward while climbing a hill?
(c)Why does a swimming pool appear less deep than it actually is?
(d)Why cannot petrol fire be extinguished by water?
(e)Why do Australians celebrate their Christmas during summer?
Q. No. 4. Differentiate between: (2 each)(a)Hypoglycemia and Hyperglycemia
(b)Renewable and Non-renewable energy resources
(c)Lava and Magma (d)Mist and Fog (e)Lunar Eclipse and Solar Eclipse
Q. No. 5. Briefly explain the working principle of the following: (5 each)(a)Radar (b)Microwave Oven
Q. No. 6. Give brief explanations for following phenomena: (2 each)(a)While watching a cricket match we see the ball struck a moment before we
hear the sound of the bat hitting the ball.
(b)A ship though made largely of steel, which is heavier than water, floats in
water.
(c)The colour of the same cloth when seen in electric light appears different from
the colour when seen in day light.
(d)Glass when heated cracks while metal does not.
(e)Although each eye perceives a separate image, we do not see everything
double.
Q. No. 7. Write short NOTES on the following: (5 each)(a)Environmental effects of Fertilizer use. (b)Global Warming.
Q. No. 8. Differentiate between: (2 each)(a)Smog and Smoke (b)Radiotherapy and Chemotherapy
(c)Diastolic and Systolic blood pressure (d)Infection and Allergy(e)Conductors and Insulators
Q. No. 9. Briefly explain the function of following in human body: (2each)
(a)Kidneys (b)Lymphatic system(c)Thyroid gland (d)Pituitary gland

CSS Past Papers Everyday Science 2013

PART – I (MCQs)
(COMPULSORY)

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

(1) Persons 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 sweat is:
(a) Calcium Oxalate (b) Potassium Sulphate (c) Sodium Chloride (d) Iron Sulphide
(e) None of these
(4) Sensitive layer of the eye is:
(a) Choroids (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 to 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 a diabetic baby born to parents both heterozygous normal?
(a) Zero (b) 1/4 (c) 1/2 (d) 3/4   (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 is 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 alcohol (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) Michel 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 peoples is:
(a) Ethnology (b) Morphology (c) Ethics (d) Genetics (e) None of these
(15) Chemicals 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 Carbondioxide
(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) Deficiency 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 magnificent constellation in the sky is:
(a) Orion (b) Columba (c) Canis Major (d) Taurus (e) None of these
(24) “Black holes” refer to:
(a) Holes occurring in heavenly bodies (b) Bright spots on the sun
(c) Collapsing objects of high density (d) Collapsing objects 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 origin (c) Different races of mankind
(d) Genetics of plants   (e) Eunuchs
(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 makes 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 fibre      (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 the 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 will it take to reduce it from 10mg to 5mg?
(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 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 the clouds.
(d) Rise in temperature. (e) Rain forests
(38) Which of the following atmospheric layers helps 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 electrons (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 (d) Volcanoes (e) Fertile land
(46) Quartz crystal in quartz watches works 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      (d) Mammal (e) None of these
(49) In a railway track, two rails are joined end to end with a gap in 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

PART – II (Subjective)

Q.2. Write short note on the following by giving their exact life span and contributions to the
field of science (Accurate facts will be appreciated) (5 x 2)
(a) Umer Al Khayam (b) Zakariya Al Razi
Q.3. Differentiate between ANY FIVE of the following pairs. (2 x 5)
(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 a glorious star in our sky. Write down its characteristics with reference to the following data:
(a) Distance from earth (b) Mean distance from centre 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 (i) Future of sun
Q.5. Write briefly (not more than three to four sentences) about ANY FIVE of the following. (2 x 5)
(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 scientific 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)
(i) Amphibion (ii) Synchronous satellite (iii) Big Dipper
(iv) Fermentation (v) 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

CSS Past Papers Everyday Science 2012

PART – II (Subjective)

Q. 2. Write briefly about two or more major achievements of each of the following two
famous Muslim scientists:
(a) Abu Abdullah Mohammad Bin Musa Al Khwarizmi
(b) Abu Ali Al Hassan ibn Al Hassan Al Haytham

Q. 3. (a) List four or more physical characteristics of the Earth.
(b) Briefly explain how Seasons and Ocean Tides are produced on the Earth?

Q. 4. (a) Very briefly explain the difference between Earthquakes, Volcanic
eruptions, Floods and Tsunamis.
(b) Briefly explain the difference between Sedimentary and Metamorphic rocks.

Q. 5. (a) Very briefly explain the difference between an Insulator, a Conductor, a
Semiconductor and a Superconductor.
(b) Briefly explain the difference between a Laser and a Photovoltaic Cell.

Q. 6. (a) Briefly explain the difference between an Antibiotic, an Antiviral Drug, a
Pesticide and a Vaccine.
(b) List any two of the three things that the MMR vaccine protects against. List
any two other vaccines given to children.

Q. 7. (a) Briefly explain how Photosynthesis works.
(b) Briefly explain the Nitrogen Cycle in nature.

Q. 8. (a) Differentiate between the following:
Deoxyribonucleic Acids (DNA)
Messenger Ribonucleic Acids (mRNA)
Proteins
(b) Explain how DNA, mRNA and Proteins are interrelated to each other.

Q. 9. (a) Explain what is meant by a balanced diet?
(b) Give the major function of the following micronutrients:
Vitamin A
Vitamin C
Iron
Calcium
Iodine

CSS Past Papers Everyday Science 2011

(PART-I MCQs) (COMPULSORY)
Q.1. Select the best option/answer and fill in the appropriate box on the answer sheet.    (1 x 50 = 50)
(1) The planet of the solar system which has maximum number of Moon is:
(a) Jupiter     (b) Venus    (c) Saturn       (d)     Uranus
(e) None of these.
(2) Sun is a:
(a) Planet     (b) Comet   (c) Satellite      (d)     Aurora
(e) None of these.
(3) The age of the solar system is:
(a) 4.5 billion years    (b) 5.5 billion years
(c) 6.5 billion years      (d) 7.5 billion years (e) None of these.
(4) A unit of length equal to the average distance between the Earth and Sun is called:
(a) Light year (b) Astronomical unit   (c) Parsec    (d) Parallax
(e) None of these.
(5) An eclipse of the Sun occurs when:
(a) The Moon is between the Sun and the Earth (b) The Sun is between the Earth and the Moon
(c) The Earth is between the Sun and the Moon (d) The Earth casts its shadow on the Moon
(e) None of these.
(6) The ozone layer protects the Earth from rays sent down by the Sun:
(a)    Ultraviolet rays (b) Infrared rays (c) Gamma rays
(d) Radioactive rays (e) None of these.
(7) The ozone layer is present about 30 miles (50 Km) in atmosphere above the Earth. The stratum (layer)
of atmosphere in which ozone layer lies is called as:
(a)    Exosphere (b) Mesosphere (c) Stratosphere
(d) Ionosphere (e) Troposphere
(8) Which rocks are formed by the alteration of pre-existing rocks by great heat or pressure?
(a) Igneous rocks (b) Sedimentary rocks (c) Metamorphic rocks
(d) Acid rocks (e) Basic rocks.
(9) The most abundant natural Iron Oxides are:
(a)    Magnetite and Pyrite   (b)   Magnetite and Bauxite (c) Hematite and Pyrite
(d) Hematite and Magnetite (e) Hematite and Bauxite
(10) The two most abundant elements in sea water are:
(a)    Sodium and Potassium (b)   Sodium and Calcium (c) Sodium and Chlorine
(d) Chlorine and Iodine (e) Magnesium and Sulphur
(11) An electric current can produce:
(a)    Chemical effect (b) Magnetic effect (c) Heating effect
(d) All of these three (e) None of these.
(12) The unit of home electricity energy consumption is:
(a)    Watt hour (b)   Kilowatt hour    (c) Joule hour
(d) Kilojoule hour (e) None of these.
(13) The magnet always points in the same direction, if allowed to move freely i.e. towards North and
South poles, because of:
(a)    Gravitational field (b)   A lot of metal deposits on North and South Poles
(c) Due to attraction of North Pole and repulsion of Western Pole
(d) Earth is a huge magnet (e) None of these.
(14) When sound is reflected from floor, ceiling or a wall, it mixes with the original sound and changes its
complexion, it is called as:
(a)    Sound (b)   Echo (c) Reverberation (d) Noise (e) None of these.
(15) The speed of sound in dry air at 20 °C is about:
(a)    130 meters per second (b)   230 meters per second (c) 330 meters per second
(d) 430 meters per second (e) None of these.
(16) The speed of light in vacuum is about:
(a)   300 Million meters per second (b) 300 Million meters per hour
(c) 300 Million kilometres per second (d) 300 Million kilometres per hour (e) None of these.
(17) The time, light takes from the Sun to reach Earth is:
(a)    8 minutes (b)   25 minutes     (c)    45 minutes      (d) 60 minutes     (e) None of these.
(18) Light from the Sun travels a distance before it reaches the Earth :
(a)    50 million Km (b)   100 million Km (c) 150 million Km
(d) 200 million Km (e) None of these.
(19) The most suitable thermometer for measuring the boiling point of water is:
(a)    Mercury thermometer (b)   Alcohol thermometer (c) Bimetallic thermometer
(d) Liquid crystal thermometer (e) None of these.
(20) The density of water is greatest at:
(a)    -32 °C (b)   0 °C (c) 4 °C (d) 100 °C (e) None of these.
(21) Which one of the following statements is true?
(a)    Gases do not conduct heat (b)        The best conductors are non-metals
(c)    Conduction currents occur only in liquids (d) A vacuum can not conduct heat
(e)    None of the statements is true.
(22) Ice can be changed to water by:
(a)    Adding more water molecules (b)   Changing the motion of the water molecules
(c)    Rearranging the atoms in water molecules (d) Destroying the atoms in water molecules
(e)    None of these.
(23) The building blocks of elements are called:
(a)    Atoms (b) Molecules (c) Compounds (d) Isotopes (e) None of these.
(24) Boiling of an egg is a change which is:
(a)    Physical (b) Chemical (c) Physiological (d) Morphological
(e) None of these.
(25) The temperature of liquid Nitrogen is:
(a)    -32 °C (b)   -80 °C (c) -100 °C (d) -196 °C (e) None of these.
(26) Which one of the following is an alkali?
(a)    Water (b) Vinegar (c) Lemon juice (d) Slaked lime
(e) None of these.
(27) If an alkali is slowly added to an acidic solution, the pH of the acidic solution will:
(a)    Increase (b) Decrease (c) Increase to 7 and then decrease
(d) Decrease to 7 and then increase (e) Will remain same.
(28) The usual raw material for ceramics, generally found beneath the top soil is?
(a)    Sand (b) Silt (c) Clay (d) Plaster of Paris (e) Melamine.
(29) Polyamides are synthetic polymers commonly known as:
(a)    Synthetic rubber (b) Nylon (c) Cellulose (d) Protein    (e) None of these.
(30) Telephone was invented in 1876 in America by:
(a)    Marconi (b) Galileo (c) John Beard (d) Edison    (e) Graham Bell.
(31) Information can be sent over long distances in the form of:
(a)    Electrical signals through wires (b) Light signals through optical fibres
(c) Radio waves through air   (d) Any combination of these three (e) None of these.
(32) Information can be stored in:
(a)    Audio and video cassettes (b) Floppy and compact discs (c) Hard disks
(d) Laser and optical disks (e) All of these four.
(33) Computers can:
(a)    Add and subtract information only (b) Add, subtract and sort information only
(c) Add, subtract, sort and classify information (d) Add and subtract but cannot sort information
(e) Add, subtract and sort but cannot classify information.
(34) IBM stands for:
(a)    International Business Machines (b) International Big Machines
(c) Interrelated Business Machines (d) Interrelated Big Machines (e) None of these.
(35) Chemicals used to kill weeds are called as:
(a)    Insecticides (b) Fungicides (c) Herbicides
(d) Fumigants (e) None of these.
(36) The cytoplasm consists of several types of structures, which are called:
(a)    Protoplasm (b) Nucleus (c) Cytochromes
(d) Organelles (e) None of these.
(37) The structure of DNA was elaborated by Watson and Crick in:
(a)    1909 (b) 1923 (c) 1945 (d) 1953
(e) None of these.
(38) In a DNA molecule, the rule for base pairing is:
(a)    Adenine always bound with thymine and cytosine with guanine
(b) Adenine always bound with cytosine and thymine with guanine
(c) Adenine always bound with guanine and cytosine with thymine
(d) Adenine always bound with uracil and cytosine with guanine
(e) None of these.
(39) Man belongs to the family:
(a)    Felidae    (b) Hominidae (c) Mammalia (d) Primataceae (e) None of these.
(40) Deficiency of vitamin C in the human body causes a deficiency disease called:
(a)    Beriberi   (b) Night blindness (c) Rickets (d) Scurvy (e) None of these.
(41) To measure the specific gravity of milk, the instrument used is:
(a)    Hygrometer (b) Barometer (c) Lactometer (d) Hydrometer (e) None of these.
(42) One of the fundamental characteristics of living organisms is:
(a)    Photosynthesis   (b) Digestion (c) Excretion   (d)   Metabolism (e) None of these.
(43) Plants growing on other plants are called as:
(a)    Saprophytes    (b) Parasites (c) Epiphytes   (d) Pathogens (e) None of these.
(44) As per eating habit, squirrels are:
(a)    Frugivorous   (b)   Herbivorous    (c) Carnivorous   (d) Omnivorous
(e) Insectivorous.
(45) Water loss from leaves through stomata is called as:
(a)    Evaporation   (b) Transpiration (c) Evapo-transpiration   (d) Respiration
(e) None of these.
(46) The study of how plants and animals interact with one another and with the non-living environment is
called as:
(a)    Ecosystem   (b)   Sociology (c) Ecology   (d) Habitat (e) None of these.
(47) The number of bones in human body is:
(a)    200    (b) 202 (c) 204 (d) 206 (e) None of these.
(48) Nervous system in human body consists of:
(a)    Brain and spinal cord    (b) Brain and nerves (c) Spinal cord and nerves
(d) Brain, spinal cord and nerves (e) None of these.
(49) In human eye, the light sensitive layer made of specialized nerve cells, the rods and cones is called as:
(a)    The pupil   (b) The cornea (c) The sclera    (d) The iris (e) The retina.
(50) Erythrocytes are also called as:
(a)    Red blood cells (b) White blood cells   (c) Platelets
(d) Plasma   (e) None of these.

PART – II (Subjective)

Q.2. Write short note on the following Muslim scientists by giving their exact life span and contribution to the field of science:(5x 2 = 10)
(a)Jabar-bin-Hayan (b) Bu Ali Sina
Q.3. Differentiate between any FIVE of the following pairs:- (5 x 2 = 10)
(a) Typhoons and Tornadoes (b)   Microscope and Telescope   (c) Ultrasonics and Infrasonics
(d) Hard water and Heavy water (e)   Isotopes and Isomers       (f) Antibodies and Antibiotics
(g) Antigen and Vaccine
Q.4. (a) What is a galaxy? The Earth belongs to which galaxy?         (1+1 = 2)
(b) Briefly describe what is big bang theory.        (4)
(c) Do you think that Pluto is still ninth planet of our solar system? If yes, how and if not why? (1+3)
Q.5. (a) Basically how many forms of energy are there? Also name these.         (1+1 = 2)
(b) Enlist different types of energy.        (4)
(c) Why are scientists trying to find alternate energy sources?        (2)
(d) What is a renewable energy source? Quote three examples of renewable energy sources.          (2)
Q.6. Is plastic a natural or an artificial polymer? Describe various types of plastics and their uses.      (10)
Q.7. (a) What do the following abbreviations stand for:
(i) LAN (ii) HTTP (iii) HTML (iv) PDF (v) URL       (1 x 5 = 5)
(b) Differentiate between natural and artificial satellites. For what purpose artificial satellites are
used?     (5)
Q.8. (a) What is the main function of:       (1 x 5 = 5)
(i) Ribosome (ii) Mitochondria (iii) Lysosomes (iv) Chloroplasts (v) Golgi apparatus
(b) Give habitats of following animals:       (1 x 5 = 5)
(i) Rattle snake (ii) Ostrich (iii) Platypus (iv) Rhinoceros (v) Chimpanzee.
Q.9. Write short notes on the following:-      (2 x 5 = 10)
(a) Nucleic acids (b) Fertilizers   (c)    Semiconductors   (d) Microwave oven (e) Internet

CSS Past Papers Everyday Science 2010

PART – I (MCQs)
(COMPULSORY)
Q.1. Select the best option/answer and fill in the appropriate Box on the Answer Sheet:   (50)
(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 of time (d) Very soon (e) None of these
(3) The measurement of rainfall is made by an instrument known as:
(a) Hygrometer (b) Barometer (c) Hydrometer (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 feels 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) 56 ft (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 becomes 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) Supersonic (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) 0oC (b) 37oC (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 the:
(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 metals:
(a) Copper, Nickel (b) Copper, Tin (c) Copper, Silver   (d) Copper, Zinc (e) None of these
(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 size is around 14.7 lb
wt. per square inch. But the man feels quite comfortable. It is because:
(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/sec (b) 60 miles/sec (c) 7 miles/sec (d) 10 miles/sec (e) None of these
(29) Night vision is possible with the help of:
(a) Red Light (b) Violet Light (c) Infrared Light (d) Ultraviolet 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 the these
(32) The instrument which is specially designed for recording earthquake wave is called
seismograph which measures earthquake 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 in:
(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 the most:
(a) Advanced (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 characteristics 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) Stomach (b) Liver (c) Small intestine (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) Recommended daily allowance
(d) Optimum energy intake (e) None of these
(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 in the human body is:
(a) Nitrogen (b) Carbon (c) Hydrogen      (d) Oxygen (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 carbohydrate mainly from:
(a) Sucrose   (b) Starch (c) Glucose (d) Glycogen (e) None of these

PART – II (Subjective)

Q.2. Write short note on the following by giving their exact life span and contributions to the field
of science. (Accurate facts will be appreciated) (5 x 2)
(a) Al – Biruni (b) Ibn – al – Haitham
Q.3. What do you know about hereditary diseases? Comment how they are transferred from
parents to offsprings? (3 + 7)
Q.4. Write briefly about ANY FIVE of the following: (Answer in three or four sentences) (2 x 5)
(a) Plaster of Paris (b) Reflex Action(c) Pace Maker (d) Swine Flue
(e) Microwave Oven (f) The Internet(g) Voltage Stablizer
Q.5. (a) What is global warming? Is there a sunny side to global warming? If yes, explain. (2 + 6)
(b) What makes the seasons happen? (2)
Q.6. In which region of the world, the following animals are found? Give two main characteristics
of each. (2 x 5)
(a) Blind dolphin (b) Kangaroo (c) Panda(d) Kiwi (e) Penguin
Q.7. (a) In which organ these parts are present in animals or human body? (2 + 8)
(b) Describe the function of each briefly:
(i) Coronary artery (ii) Sino-auricular Node (iii) Aortic Valve (iv) Auricle
Q.8. Differentiate between the following pairs: (2 x 5)
(a) Hydrometer and Hygrometer (b) Perimeter and Telemeter
(c) Isotopes and Isomers (d) Flying mammal and Bird (e) Vertebrates and Invertebrates
Q.9. (a) What are pesticides? Explain how these are dangerous to human beings? (2 + 4)
(b) What do the following scientific abbreviations stand far? (1/2 each)
(i) STP (ii) LORAN (iii) SONAR (iv) MAF (v) MeV (vi) MASER (vii) AWACS (viii) CCTV

CSS Past Papers Everyday Science 2009

PART – I (MCQs) (COMPULSORY)

PART – II (Subjective)

Q.2. Write short note on the following by giving their exact life span and contributions to the
field of science (Accurate facts will be appreciated) (5 x 2)
(a) Umer Al Khayam (b) Zakariya Al Razi

Q.3. Differentiate between ANY FIVE of the following pairs. (2 x 5)
(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 a glorious star in our sky. Write down its characteristics with reference to the following data:
(a) Distance from earth (b) Mean distance from centre 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 (i) Future of sun

Q.5. Write briefly (not more than three to four sentences) about ANY FIVE of the following. (2 x 5)
(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 scientific 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)
(i) Amphibion (ii) Synchronous satellite (iii) Big Dipper
(iv) Fermentation (v) 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

Nowlg

Knowledge of everything in one place

Monday, August 3, 2015