Fluid Mechanics MCQ Questions & Answers | Chemical Engineering

A. ML^-2

B. MT^-2

C. MLT^-2

D. ML^-2T

A. Its capacity varies directly as the square of speed

B. Head varies as the square of speed

C. Horsepower input varies as the square of speed

D. Head varies as the speed

A. Temperature gradients are very high

B. Temperature is more or less uniform

C. Hot spots are formed

D. Segregation of the solids occurs

A. Velocity changes linearly with radial distance

B. Flow is necessarily rotational

C. Radial component of velocity is same everywhere

D. Stream lines are not circular

A. Depends only on Reynolds number

B. Does not depend on Reynolds number

C. Depends on the roughness

D. None of these

A. Bursting of pipelines due to closure by a valve

B. Rapid pressure change due to a rapid change in the rate of flow

C. Pressure increase due to closure of a valve resulting in decrease in rate of flow

D. None of these

A. Increasing the acceleration head

B. Making the friction in pipe uniform

C. Decreasing the acceleration head

D. None of these

A. Temperature

B. Pressure

C. Specific volume

D. None of these

A. Increasing the impeller speed and the volute area

B. Increasing the number of vanes in the impeller

C. Mounting of two or more impellers in series on a single shaft

D. Either of A, B or C

A. Solids are completely entrained

B. The pressure drop is less than that for batch fluidisation

C. There is no entrainment of solids

D. Velocity of the fluid is very small