1.
The
life history of human malarial parasite in Anopheles was first described by:
a.
Patrick
Manson
b.
Laveran
c. Ronald Ross
d.
Richard
Peiffer
2.
Which
of the following is based on the process of fusion?
a.
Atom
bomb
b. Hydrogen bomb
c.
Ordinary
bomb
d.
Napalm
bomb
3.
Hybridization
is:
a.
downward
movement of water through soil
b.
a
process of tilling the land
c.
decayed
vegetable matter
d.
cross-fertilization
between two varieties
4.
Of
the following foods, which one is the best source of protein?
a.
Butter
b. Fish
c.
Lettuce
d.
Milk
5.
The
volume of which of the following materials decreases when it is heated from 0°C
to 5°C?
a.
Air
b.
Copper
c. Water
d.
Mercury
6. On
a night when the sky is clear, the temperature may dip considerably; on a
cloudy night the temperature will usually dip much less. The reason for this
difference is that:
a.
the clear sky
allows radiant energy to escape readily from the earth
b. on
a cloudy night the clouds are warm and therefore retard the cooling
c. the
clear sky allows the cold of outer space to reach the earth
d. currents
of air carry the heat away from the earth on a clear night
7. Which
of the following chemicals is useful in photography?
a. Aluminium
hydroxide
b. Potassium
nitrate
c. Silver bromide
d. Sodium
chloride
8. The
purest form of water can be obtained from:
a. a
deep tubewell
b. a
running stream
c. a
hot water spring
d. a heavy shower of rain
9. 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
10. If
speed of rotation of the earth increases, weight of the body:
a. Increases
b. remains
unchanged
c.
decreases
d. may
decrease or increase
11. 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
12. The
working of a rocket is based on the principle of:
a. Electricity
b. Kepler’s
Law
c. Newton’s
Law
d. conservation of momentum
13. Acceleration
is the rate of change of:
a. Direction
b. Distance
c.
Speed
d. Weight
14. A
body falling freely from a height towards the earth moves with uniform:
a. Speed
b. velocity
c.
acceleration
d. weight
15. Escape
velocity of a rocket fired from the earth towards the moon is a velocity to get
rid of the:
a.
earth’s gravitational pull
b. moon’s
gravitational pull
c. centripetal
force due to the earth’s rotation
d. pressure
of the atmosphere
16. The
number of chromosomes in human body is:
a. 42
b. 44
c.
46
d. 48
17. The
drug quinine is used in the treatment of:
a. bubonic
plague
b.
malaria
c. typhus
d. yellow
fever
18. Reproductive
cell in normal human beings are produced:
a.
in greater numbers for a longer period of time in the male
b. for
a longer period in the female than in the male
c. in
equal numbers in both sexes.
d. in greater numbers by the female then by
the male
19. The
conservation of hawks and owls is important to mankind chiefly because these
birds eat:
a. numerous
weed seeds
b. harmful
birds
c.
many harmful rodents
d. harmful
reptiles
20. If
the plane of the earth’s equator were not inclined to the plane of the earth’s
orbit:
a. the
year would be longer
b. the
winters would be longer
c.
there would be no change of seasons
d. the summers would be
warmer
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