42.
At a constant speed of the centrifugal pump . it __________ the impeller diameter.

44.
In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity.

47.
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas)

50.
Various efficiencies of a centrifugal pump are related as (where, ηm = mechanical efficiency ηv = volumetric efficiency. ηma = manometric efficiency ηo = overall efficiency)

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