FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POST
IN BPS-17 UNDER THE FEDERAL GOVERNMENT, 1993
GENERAL KNOWLEDGE, PAPER – I EVERYDAY SCIENCE
Time Allowed: 2 Hours Maximum Marks: 50
Note: Attempt any ten questions. All questions carry equal marks. Draw diagram wherever necessary.
- Which of the following statements are false and which are true.
a) Urea is a phosphorus fertilizer
b) Ibn Baitar was a renowned Muslim Botanist
c) Penicillin was discovered by Edward Jenner
d) Cellulose is a natural polymer
e) Vitamin A and D are water soluble.
f) Amoeba is a unicellular animal
g) Solar eclipse occurs in full moon
h) Water is a bad conductor of electricity
i) Leprosy is a disorder of the nervous system
j) Chlorofluorocarbons cause decomposition of ozone
- Write short notes on any two of the following
a) Nitrogen cycle b) Solar system c) Greenhouse effect -
Describe any of the following terms in not more than four lines.
a) Mitosis b) Hemophilia c) Reflex action d) Metabolism e) Fission f) Non-renewable energy resources -
Fill in the blanks with correct choice.
(i) Quartz is chemically a _____________.
(ii) Chicken egg is composed of _____________.
(iii) Visible light energy has the wavelength range of _____________.
(iv) The particles with positive charge but having mass equal to that of electron is called _________ .
(v) Gas in children’s play-balloons going upward is ____________.
(vi) Standard pressure is ______________.
(vii) Iron corrodes due to the formation of ________________. -
What is the difference between a ‘DAM’ and a ‘Barrage’? Why cannot Barrages be used for production of hydroelectric power?
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What are plastics? Discuss their important properties which have contribute to their extensive use in modern industry. Explain their adverse effects on
(i) Environment (ii) Agriculture -
Give reasons of the following:
a) A 25 watts incandescent bulb provides much less light than a 25 watts fluorescent tube light.
b) A ball dropped vertically on the ground does not rise to its original height.
c) Meat takes longer time to cook on a mountaintop than at sea level.
d) More stirring is needed when sugar is dissolved in cold coffee than in hot coffee
- Explain in detail what is a balanced diet; name a nutrient present in each of the following food
(i) Apple (ii) Bread (iii) Meat (iv) Butter (v) Orange (vi) Egg (vii) Milk (viii) Spinach -
Differentiate between
(i) Latitude & Longitude (ii) Pig Iron & Cast Iron (iii) Hard Water & Heavy Water (iv) Drug use & Drug abuse -
What are the warm blooded animals? Give any two examples. Explain any three traits found in warm blooded animals
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What does the abbreviation LASER stand for? Point out three differences between laser and ordinary light. Mention two applications of Laser.
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Name the instruments used for measuring each of the following
(i) Pressure (ii) Voltage (iii) Purity of milk (iv) Temperature (v) Velocity of wing -
What is Computer? Name their different classes. Briefly explain the term Software and Hardware.
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Muslim Scientists contributed in science and mathematics during the period 8th – 13th century. Name five scientists who are well known for their contribution in the following fields during the era.
(i) Chemistry (ii) Algebra (iii) Light -
Fill in the blanks
(i) Starch is a polymer of __________.
(ii) A big astronomical observatory known as the _________________________ was established during the reign of Caliph Mamun.
(iii) Adrenalin is secreted by the Adrenal _______________.
(iv) ________ planet is nearest to the earth.
(v) CFC is the abbreviation of _____________________.
(vi) The process of conversion of a material from solid state directly to gaseous state is called ____________.
(vii) A junction diode is formed by PWP semiconductor pieces whereas junction transistor is a sandwich made up of P__________ transistor.