Fluid Mechanics MCQ Questions & Answers

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Each section contains 100 MCQs on Fluid Mechanics .

The dimension of surface tension is

A) ML^-2 B) MT^-2 C) MLT^-2 D) ML^-2T

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

With a constant diameter impeller of a centrifugal pump

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

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In a fluidised bed reactor

A) Temperature gradients are very high B) Temperature is more or less uniform C) Hot spots are formed D) Segregation of the solids occurs

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In a free vortex, the

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

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The friction factor for turbulent flow in a hydraulically smooth pipe

A) Depends only on Reynolds number B) Does not depend on Reynolds number C) Depends on the roughness D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Water hammer in a pipeline results from the

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

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Air vessel provided in a reciprocating pump is for

A) Increasing the acceleration head B) Making the friction in pipe uniform C) Decreasing the acceleration head D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Speed of sound in an ideal gas depends on its

A) Temperature B) Pressure C) Specific volume D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump?

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

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

100

In continuous fluidisation

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

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Fluid Mechanics MCQ Questions & Answers | Chemical Engineering