Everyday Science CSS Paper 1981
FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POST
IN BPS-17 UNDER THE FEDERAL GOVERNMENT, 1981
GENERAL KNOWLEDGE, PAPER – I EVERYDAY SCIENCE
Time Allowed: 2 Hours Maximum Marks: 50
Note: Attempt Eleven questions in all. Question No.1 is compulsory. Be brief and to the point. All questions carry equal marks except question No. 1 which carries 10 marks.
- Fill in the blanks:
(a) Malaria is caused by ____ . (Plasmodium, Mosquito, Trypanosoma)
(b) Ricks disease is caused by deficiency of vitamin ____ . (C, D, E)
(c) B. C. G. vaccination is prevention against ____ (Typhoid, Tuberculosis, Diphtheria)
(d) The smallest organism which cause disease is ____ (Protozoa, Bacteria, Virus)
(e) Pakistan is supposed to be free from ____ disease. (Poliomyelitis, Malaria, Smallpox)
(f) If distant object appear blurred due to defective sight, spectacles with ____ lenses are used. (Convex, Concave, Cylindrical)
(g) Who invented telescope ____ . (Thomas, Edison, Galileo, Samuel, Morse)
(h) Wires used in carrying electric current were made up of ____ (Iron, Zinc, Copper)
(i) Human car is divided into ____ parts. (Two, There, Four)
(j) Image of an object is formed on ____ of the eye. (Comas, Retina, Optic, nerve) -
Write short notes on two of the following:
(i) Narcotics (ii) Allergy (iii) Heredity (iv) Human blood -
Give a brief of account of digestion in human body.
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What is the source of the heat used to maintain our body temperature constant?
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If a freshwater microorganism is placed in a strong salt solution, what will happen to it? Why? How might this effect of salt be used in preserving food?
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“Atherosclerosis” is a condition also called “hardening of the arteries”, resulting among other effects of reduced elasticity of the arteries. What circulatory problem might arise from this effect on the vessels.
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Describe the structure and function of any two of the following:
(i) Dry Battery Cell (ii) Fire Extinguisher (iii) Clinical Thermometer (iv) Common electric bulb
- Describe the following:
(i) Nitrogen cycle (ii) Photosynthesis (iii) Respiration (iv) Wheel and Axle -
Name the natural sources of the following acids:
(i) Citric acid (ii) Acetic acid (iii) Lactic acid (iv) Formic acid -
What is the composition of the following alloys?
(i) Stainless steel (ii) Brass (iii) Solder (iv) German Silver -
What is the difference Oils and Ghee? How the vegetable oil is converted into Banaspati Ghee?
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What is the corrosion and what are its disadvantages?
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What are the effects of waterlogging on plant growth?
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Explain why a bomber does not drop its bomb when it is vertically above the target?
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Why do we use woollen clothes for protecting ourselves from cold?
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What is the difference between a Telescope and Microscope?
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What is the difference between alternating current (A.C) and direct current (D.C.)? can you change the voltage of a D.C. source by using a transformer?
-
Why do the bones show up better than flesh in an X-ray photograph?
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how are the planets different from the stars?
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What are the producers and consumers in an ecosystem?
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