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Everyday Science CSS Paper 1995

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FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POST
IN BPS-17 UNDER THE FEDERAL GOVERNMENT, 1995
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.1 and 14.

  1. Which of the following statements are true and which are false: (1 1/2 each)
    (a) Cryptograms are non-flowering plants
    (b) Reserve food material is usually stored as Glycogen in plants.
    (c) Streptococcus is a gram negative bacteria.
    (d) Spinach is a good source of vitamin K
    (e) Femur is a bone of the forearm.
    (f) The moon has no atmosphere
    (g) Excessive burning of fossil fuels cause acid rain.
    (h) Twenty-first of June is the longest day of the year in the northern hemisphere.
    (i) Electricity is a secondary source of energy

  2. Define any Five of the following scientific terms: (1 each)
    (a) Doping (b) Immunization (c) Pasteurization (d) Modulation (e) Catabolism (f) Reprocessing of reactor fuel

  3. What do you understand by the term “Deforestation”? Discuss its ill-effects on mankind. (1,4)

  4. Fill in the blanks: (1/2 each)
    (a) The largest planet of the solar system is _____.
    (b) The outermost layer of the earth is called ____.
    (c) Newton is the unit of ____.
    (d) Radium was discovered by ____.
    (e) The memory of the computer is expressed in ____.
    (f) Quartz is crystalline form of ____.
    (g) Aids is caused by ____.
    (h) Chemical name of Gypsum is ____.
    (i) Molten superhot material present inside a volcano is called ____.
    (j) Richter scale measures the severity of ____.

  5. What is composition of blood? Describe six main functions of blood.

  6. Write short notes (not more than 150 words on any Two of they following):
    (a) Semiconductors (b) Pesticides (c) Laser

  7. Write short notes (not more than 100 words) on the life and works of any Two of the following scientists:
    (a) Ibn Al-Baitar (b) Al Biruni (c) Ibn Al-Haytham

  8. Give brief explanation for any five of the following: (1 each)
    (a) The earth bulges out at the equator.
    (b) The sun appears red at the sunset and sunrise.
    (c) Ozone layer in the upper atmosphere is necessary for our survival.
    (d) The sky when viewed from the moon appears completely black.
    (e) Australian continent has winter season when we have summer season in Pakistan.
    (f) Roads are bent inwards on curves

  9. Write an essay (not more than 200 words) on ‘Variation of apparent moon size. Draw diagram to support your description

  10. Classify the following animals as Reptiles. Mammals, Birds, and Fish:
    (a) Blue whale (b) Cobra (c) Panda (d) Ostrich (e) Penguin (f) Kiwi (g) Shark (h) Alligator (i) Dolphin (j) Tortoise

  11. Name all the organs of the Excretory System of the human body. Draw a labelled diagram and explain the functions of each organ. (5)

  12. Differentiate between the following: 1 (each)
    (a) Hypoglycemia and Hyperglycemia (b) Epidemic and Endemic (c) Herbivores and Carnivores (d) Photosynthesis and Respiration (e) Pollination and Fertilization

  13. How do our domestic and industrial activities pollute water? Explain with reference to two important industries of Pakistan. (2,3)

  14. Fill in the blanks with the correct choice:
    (a) pH of blood is (4.3-4.4,7.3-7.4,9.3-9.4)
    (b) One of the countries through which equators passes is (Kenya, Pakistan, Malaysia)
    (c) Purest form of iron is (pig iron, wrought iron, cast iron)
    (d) Hypo is a solution of (Sodium chloride, Silver nitrate, Sodium thiosulphate)
    (e) Cod liver oil contains (Vitamin K, Vitamin E, Vitamin D).
    (f) Aorta is an organ of the (nervous system, circulatory system, digestive system
    (g) Planet Mars has (one, two, four) moons.
    (h) Bauxite is an ore of (Boron, Aluminium, Magnesium).
    (i) Circular aperture which appears as a dark spot in the eye is called (iris, pupil, lens).
    (j) The most distant planet in the solar system is (Mars, Pluto, Jupiter).

  15. Match the Scientists and their discoveries/inventions given in columns (a) and (b)

(a)
Einstein
Rontgen
Charles Darwin
Chadwick
Mendel

(b)
Neutron
Laws of heredity
X-Rays
Theory of Evolution
Mass energy conversion equation


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