1000+ Fluid Mechanics Questions and Answers Pdf - 2

Question: 6

With increasing radius, the velocity in free vortex and forced vortex respectively

(A) remains constant and decreases

(B) increases and decreases

(C) decreases and increases

(D) decreases and remains constant

Question: 7

Most of the centrifugal pumps used in chemical plants are usually _____ driven.

(A) gas turbine

(B) electric motor

(C) diesel engine

(D) steam

Question: 8

The loading and unloading of a reciprocating compressor is carried out based on

(A) moisture content

(B) temperature

(C) volume

(D) pressure

Question: 9

With increasing flow rate, the hydraulic efficiency of a centrifugal pump

(A) increases and then decreases

(B) remains constant

(C) decreases and then increases

(D) monotonically decreases

Question: 10

Fluidised beds are formed, when the

(A) sum of the fluid friction and pressure forces is equal and opposite to gravity forces

(B) pressure forces equal gravity forces

(C) gravity force is less than the fluid friction

(D) fluid friction is zero