1.You use a
hydrometer to check the condition of the electrolyte in your car battery. It is
actually measuring what property of the fluid?
hydrometer to check the condition of the electrolyte in your car battery. It is
actually measuring what property of the fluid?
A charge
B density
C temperature
D surface tension
Ans-B
2.Which of the following
is Laughing gas?
is Laughing gas?
A Nitrogen
Monoxide
Monoxide
B Nitrous Oxide
C Bromine
trifluoride
trifluoride
D Nitrogen
Ans-B
3.Bone is hard
because of the presence of
because of the presence of
A. Calcium
phosphase
phosphase
B.Calcium
carbonate
carbonate
C.Sodium
Carbonate
Carbonate
D. Potassium
carbonate
carbonate
Ans-B
4.Which of these
does not contain nucleus?
does not contain nucleus?
A Companion cell
B Xylem
parenchyma
parenchyma
C Sieve tube
D None
Ans-C
5.Who arranged
all organisms into five kingdoms?
all organisms into five kingdoms?
A Carrolus
Linnaeus
Linnaeus
B Purkinje
C Whittaker
D Aristotle
Ans-C
6.A floating body
always displaces water according to its own:
always displaces water according to its own:
A volume
B weight
C mass
D none of the
above
above
Ans-B
7. In order to
double the period of a simple pendulum:
double the period of a simple pendulum:
A the mass of its
bob should be doubled
bob should be doubled
B its length
should be doubled
should be doubled
C the mass of its
bob should be quadrupled
bob should be quadrupled
D its length
should be quadrupled
should be quadrupled
Ans-D
8.The working
principle of a Washing Machine is:
principle of a Washing Machine is:
A Diffusion
B Distillation
C Reverse osmosis
D Centrifugation
Ans-D
9.It is easier to
swim in a sea water than in ordinary water because:
swim in a sea water than in ordinary water because:
A density of sea
water is higher than that of ordinary water
water is higher than that of ordinary water
B density of sea
water is less than that of ordinary water
water is less than that of ordinary water
C sea water
contains salt
contains salt
D atmospheric
pressure is highest at sea level
pressure is highest at sea level
Ans-A
10.Which of the
following is more elastic?
following is more elastic?
A Wet clay
B Steel
C Plastic
D Rubber
Ans-B
