The flow velocity in detritus tanks is________________?
The flow velocity in detritus tanks is________________?
A. 0.05 m/sec
B. 0.09 m/sec
C. 1.25 m/sec
D. None of these
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The property of a fluid which enables it to resist tensile stress is known as________________?
The property of a fluid which enables it to resist tensile stress is known as________________?A. compressibility
B. surface tension
C. cohesion
D. adhesion
E. viscosity.A perfect gas_________________?
A perfect gas_________________?A. has constant viscosity
B. has zero viscosity
C. is incompressible
D. is of theoretical interest
E. none of the aboveFor a body floating in a liquid the normal pressure exerted by the liquid acts at _________________?
For a body floating in a liquid the normal pressure exerted by the liquid acts at _________________?A. bottom surface of the body
B. e.g. of the body
C. metacentre
D. all points on the surface of the body
E. all of the aboveBarometer is used to measure__________________?
Barometer is used to measure__________________?A. pressure in pipes, channels etc.
B. atmospheric pressure
C. very low pressure
D. difference of pressure between two points
E. rain levelThe first stage of neutral process of sludge digestion, is__________________?
The first stage of neutral process of sludge digestion, is__________________?A. Acid fermentation
B. Acid regressio
C. Alkaline fermentation
D. None of theseThe units of kinematic viscosity are_______________?
The units of kinematic viscosity are_______________?A. metres2 per sec
B. kg sec/meter
C. newton-sec per meter
D. newton-sec per meter
E. none of the above