1.
Superconductivity
is a phenomenon in which the resistance of a substance:
a.
increases
with temperature
b.
decreases
with temperature
c.
does
not change with temperature
d.
becomes
zero at very low temperature
2.
Liquids
transmit pressure equally in all directions. This is known as:
a.
Boyle-Pascal’s
Law
b.
Pascal’s Law
c.
Archimedes’
Principal
d.
None
of the above
3.
The life history of human malarial parasite in
Anopheles was first described by;
a.
Patrick Manson
b. Laveran
c. Ronald Ross
d.
Richard Pfeiffer
4.
Which of the following is based on the process of
fusion?
a.
Atom bomb
b. Hydrogen bomb
c.
Ordinary bomb
d.
Napalm bomb
5.
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
6.
Of the following foods, which one is the best
source of protein?
a.
Butter
b. Fish
c.
Lettuce
d.
Milk
7. 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
8.
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
9.
Which
of the following chemicals is useful in photography?
a.
Aluminium
hydroxide
b.
Potassium
nitrate
c.
Silver bromide
d.
Sodium
chloride
10.
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
11.
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
12.
If
speed of rotation of the earth increases, weight of the body:
a.
Increases
b.
remains
unchanged
c.
decreases
d.
may
decrease or increase
13.
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
14.
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
15.
Acceleration
is the rate of change of:
a.
Direction
b.
Distance
c.
Speed
d.
Weight
16.
A
body falling freely from a height towards the earth moves with uniform:
a.
Speed
b. velocity
c.
acceleration
d.
weight
17.
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
18.
The
number of chromosomes in human body is:
a.
42
b. 44
c.
46
d.
48
19.
The
drug quinine is used in the treatment of:
a.
bubonic
plague
b.
malaria
c.
typhus
d.
yellow
fever
20.
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
No comments:
Post a Comment