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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