Everyday Science CSS Paper 1982
FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POST
IN BPS-17 UNDER THE FEDERAL GOVERNMENT, 1982
GENERAL KNOWLEDGE, PAPER – I EVERYDAY SCIENCE
Time Allowed: 2 Hours Maximum Marks: 50
Note: Attempt Eleven questions in all. Question No.1 is compulsory. All questions carry equal marks.
- Write a short essay on Science and Society
-
Describe briefly the achievements of any Five of the following scientists:
(a) Ibn Al Hashem (b) Al Biruni (c) Darwin (d) Pasteur (e) Rontgen (f) Fleming (g) Banting -
Fill in the blanks:
(a) The conversion of non-diffusible substances into diffusible ones by the action of enzymes is called ____ .
(b) Saliva helps in the digestion of ____ .
(c) When a person can see nearer objects but not the distant ones, he is said to be suffering from ____ .
(d) ____ is the result of rapid uncontrolled multiplication of cells.
(e) Nitric acid is principally used for the manufacture of ____ .
(f) In Pakistan, sulphur is found in _____ .
(g) Diamond is the purest naturally occurring crystalline from of ____ .
(h) The brown colour of the rust is because of ____ .
(i) Caustic soda is extensively used for making ____ .
(j) The planet nearest the sun is ____ . -
Write notes on any Five of the following:
(a) Peristalsis (b) Blood pressure (c) Reflex action (d) Oceanography (e) Bleaching powder (f) Cellulose (g) Early Bird (h) Stratosphere -
How are characters transmitted from parents to offspring?
OR
What do you know about blood groups in a man? -
How do plants synthesize their food?
-
What is a virus? Describe any twO viral diseases in man.
- What do you know about natural defence against inflections?
-
Differentiate between any three of the following:
(a) Inoculation and vaccination
(b) Cast iron and wrought iron
(c) Optical telescope and radio telescope
(d) Isotherms and isobars
(e) Troposphere and tropopause
(f) Weather and climate. -
How were vitamins discovered? Describe any two deficiency disease in a man caused by lack of vitamins.
-
What is soil erosion? What are its ill-effects?How can the erosion be reduced?
12 What are the uses of the following chemicals?
(a) Sodium Carbonate (b) Hydrochloric Acid c) Sodium Bi-Carbonate (d) Sulphuric Acid
- How is nuclear energy produced?
-
Name any five planets which revolve round the Sun.
-
(a) How many colours are seen in a rainbow? Why is rainbow seen after rain?
(b) Why is cooking ordinarily difficult on mountains?
(c) Why does an electric bulb make a bang when it is broken
(d) Why does water gets cooled in earthen pitchers? -
What is biogas? How is it commercially produced? What are its use?
-
Why do we use woollen cloths for protecting ourselves from cold?
-
Explain the principles of any Two of the following appliances:
(a) Desert cooler (b) Television (c) Radar (d) Pressure suit
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