Everyday Science CSS Paper 1997
FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POST
IN BPS-17 UNDER THE FEDERAL GOVERNMENT, 1997
GENERAL KNOWLEDGE, PAPER – I EVERYDAY SCIENCE
Time Allowed: 2 Hours Maximum Marks: 50
Note: Answer any ten questions. All questions carry equal marks. Draw diagrams where necessary. Negative marking would be done for incorrect answers in Question 13 and 14.
- Discuss the role and achievement of Muslim physicists during the 10th century.
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Explain the structure of Earth and its atmosphere.
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Write short notes on any two of the following:
(i) Solar eclipse (ii) Thermoplastics (iii) Non-renewable energy resources -
What are pesticides? Discuss their classification, commonly in use with agronomists.
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What is the difference between:
(i) BIT and BYTE (ii) RAM and ROM (iii) C.U and A.L.U (iv) Hardware and Software (v) Personal computer and Mainframe -
Explain any Five of the following terms (in not more than Four lines each):
(i) Osmosis (ii) Glycolysis (iii) Phototaxis (iv) Transpiration (v) Saponification (vi) Emulsion -
Fill in the blanks
(i) A sheet of muscles called ____ separates the chest from the abdomen.
(ii) In the human body, blood clotting factor is produced by the _____ .
(iii) Human blood is able to carry large amounts of oxygen because of the chemical ____ .
(iv) The living part of a plant cell is composed of a nucleus and ____ .
(v) The pattern for building protein molecules is stored in the ____ .
(vi) Anvil and stirrup are names of bones present in the ____ .
(vii) The front of the eye is covered with a tough transparent material called ____ .
(viii) The young plant inside a grain of wheat is called the ____ .
(ix) In born behaviours that involve only one part of the body are called ____ .
(x) The smallest branches of any artery lead into tiny blood vessels called ____ . -
What are Exocrine glands? Give names of any four along with the names of their secretion.
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Which quantity do the following units measure
(i) Volt (ii) Coulomb (iii) Watt (iv) Ohm (v) Mho (vi) Ampere (vii) Dyne (viii) Celsius (ix) Joule (x) Calorie -
Give scientific reasons (in not more than four lines each) for the following:
(i) Meat takes longer to cook on the mountains.
(ii) Water remains cool in Earthen pitchers.
(iii) Ice and salt mixture is used as a freezing agent in manual ice-cream makers.
(iv) It is not advisable to sleep under trees during the night.
(v) Greenhouse operators paint their glass roofs while in summer. -
Which part /organ of the human body do the following belong:
(i) Eustachian tube (ii) Cartilage (iii) Auricle (iv) Tendon (v) Dendrites -
Briefly describe the Solar System. Name its members, outline the main characteristics of any two members.
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Fill in the blank with the correct choice
(i) Insulin is produced in the human body by the ____ (Liver, Pancreas, Gall bladder)
(ii) In an animal cell, Protein is synthesized in the ____ (Nucleus, Mitochondria, Ribosome)
(iii) Chemically finger nails are made up of ____ (Carbohydrate, Protein, Minerals)
(iv) Muscle stiffness is a symptom caused by the disease ____ (Polio, Tetanus, Raules)
(v) Animals which obtain their food from dead organisms are called ____ (Carnivores, Scavengers, Saprophytes)
(vi) ____ is not affected by cooking (Ascorbic acid, Thiamin, Riboflavin)
(vii) Rickets is caused by the deficiency of vitamin ____ (A, D, K)
(viii) The number of chromosomes in the spermatozoa is ____ (Twenty-two, Twenty-three, Forty-six)
(ix) The fat in our food is digested by the enzyme ____ (Lipase, Lactase, Trypsin)
(x) The most abundant element in the human body ____ (Carbon, Hydrogen, Oxygen) -
Which of the following statements are false and which true:
(i) Sound is a form of energy.
(ii) A fraction of sunlight is refracted as it enters the earth’s atmosphere.
(iii) The energy possessed by a waterfall is kinetic energy.
(iv) Rainbows are produced by the reflection of light through raindrops.
(v) Light switches in our homes are connected in parallel series.
(vi) Generators convert mechanical; energy into electricity.
(vii) Modern incandescent bulbs contain filaments made of copper.
(viii) A steam engine cannot be powered by Fossil Fuels.
(ix) Nuclear Energy is a cheap source of abundant electricity.
(x) Oil burns cleaner and is less damaging to the environment than coal as a fuel. -
Match words of list A with those of list B:
LIST A
Protein
Magnesium
Carotene
Bauxite
Haematite
Casein
Pancreas
Quartz
Chlorofluoro carbon
Urea
LIST B
Fat
Milk
Ozone
Nitrogen
Amino Acid
Vitamin A
Aluminium
Chlorophyll
Silicon
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