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G.K. Practice Test: Question Set - 09


1. The buoyancy depends on
    (A) The shape of the body
    (B) The mass of the body
    (C) The mass of the liquid displaced
    (D) The depth to which the body is immersed

2. The ozone layer is being destroyed by chlorofluorocarbons. In this regard which do you consider as the most harmful?
    (A) Carbon atom
    (B) Chlorine atom
    (C) Fluorine atom
    (D) The entire compound

3. Venturi tube is used for
    (A) Measuring intensity of earthquakes
    (B) Measuring specific gravity
    (C) Measuring density
    (D) Measuring flow of a fluid

4. The ozone layer restricts
    (A) Visible light
    (B) Infrared radiation
    (C) X-rays and gamma rays
    (D) Ultraviolet radiation

5. Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the
    (A) Force of adhesion
    (B) Force of friction
    (C) Centrifugal force
    (D) Force of cohesion

6. Pencil “lead” is made up of
    (A) Graphite
    (B) Charcoal
    (C) Lead oxide
    (D) Lampblack

7. The Halley’s Comet will be visible again in the year
    (A) 2066 A.D.
    (B) 2064 A.D.
    (C) 2062 A.D.
    (D) 2060 A.D.

8. Convex lenses are used for the correction of
    (A) Long-Sightedness
    (B) Short- Sightedness
    (C) Cataract
    (D) None of these

9. Red light is used in traffic signals because
    (A) It has the longest wavelength
    (B) It is beautiful
    (C) It is visible to people even with bad eyesight
    (D) None of these

10. Summer solstice occurs in the Northern hemisphere
    (A) March 21
    (B) April 21
    (C) May 21
    (D) June 21

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