Fluid Mechanics
Interstage coolers are provided in a multistage compressor to

Achieve the exact delivery pressure
Cool the delivered air
None of these
Save power in compressing a given volume to a given pressure

ANSWER DOWNLOAD EXAMIANS APP

Fluid Mechanics
The Prandtl mixing length is

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

ANSWER DOWNLOAD EXAMIANS APP