Fluid Mechanics
Function of air vessel provided in a reciprocating pump is to

Reduce discharge fluctuation
Avoid the necessity of priming
Reduce the danger of cavitation
Increase the pump efficiency

ANSWER DOWNLOAD EXAMIANS APP

Fluid Mechanics
The Prandtl mixing length is

Independent of the shear stress
Independent of radial distance from the pipe axis
Zero at the pipe wall and is a universal constant
Useful for computing laminar flow problems

ANSWER DOWNLOAD EXAMIANS APP