Heavy water is used in atomic power plants as
A.Fuel
B.Source of energy
C.Lubricant
D.Moderator
E.Viscous damping fluid
Author: BILAL KHATTAK
Distinction between compulsory and optional functions of the state is
A.gradually widening
B.slowly narrowing down
C.has now practically ended
In order to avoid a correction for the effect of capillary in manometers used for measuring pressure the diameter of the tube should he
A.less than or equal to 3 mm
B.more than 3 mm but less than 5 mm
C.equal to 5 mm
D.greater than or equal to 0.5 inch.
The piston of a steam engine moves in S.H.M. The crank rotates at 180 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 1 metre from the centre is
A.16.32 m/sec
B.8.16 m/sec
C.5.88 m/sec
D.8.88 m/sec
E.Zero
Which are the examples of vestigials organs in man:
A.Coceyx
B.Plica semilunaris
C.Muscles of pinnae
D.All of these
The pinacocytes lining spongocoel in a syconoid sponge are called:
A.Gastral pinacocytes
B.Atrial pinacocytes
C.Both (a) & (b)
D.None of these
Carotenoids perform protective function in_____________??
A. Animals
B. Plants
C. Both of these
D. None of these
An organism with one extra chromosome (2n + 1), is instead of the normal diploid (2n) is known as:
A.Monoploid
B.Monosomic
C.Trisomic
D.Tetrasonic
For most chemical plants the ration of working capital to total capital investment varies from
A.10 to 20 per cent
B.from 80 to 90 per cent
C.from 51 to 65 per cent
D.from 1 to 2 per cent
Salinity of Black sea is:
A.17%
B.18%
C.19%
D.None of these
