Fluid Mechanics MCQ Questions & Answers

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Each section contains 100 MCQs on Fluid Mechanics .

Location of vena-contracta in an orificemeter does not depend upon the

A) Type of orifice B) Density, viscosity & compressibility of the fluid C) Ratio of pipe diameter to orifice diameter D) Pipe roughness

Discuss

Answer & Solution

Answer: Option A

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

Mercury is an ideal barometric fluid mainly due to its

A) High density B) Low compressibility C) Low capillary action D) Very low vapor pressure

Discuss

Answer & Solution

Answer: Option D

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

The velocity profile for a Bingham plastic fluid flowing (under laminar conditions) in a pipe is

A) Parabolic B) Flat C) Flat near the wall and parabolic in the middle D) Parabolic near the wall and flat in the middle

Discuss

Answer & Solution

Answer: Option D

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

A streamline is a line in flow field,

A) That is traced by all the fluid particles passing through a given point B) Along which a fluid particle travels C) Such that at every point on it, the velocity is tangential to it D) None of these

Discuss

Answer & Solution

Answer: Option C

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

Hot wire anemometer is used to measure the

A) Velocity of liquids B) Temperature of liquids C) Velocity of gases D) Pressure of liquids

Discuss

Answer & Solution

Answer: Option C

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

A pipe is defined as 'hydraulically smooth', if the friction factor

A) Is not a function of Reynolds number B) For a given Reynolds number remains constant even on further smoothening of the pipe C) Is zero irrespective of the Reynolds number D) None of these

Discuss

Answer & Solution

Answer: Option B

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

Higher specific speed (200-500) of a centrifugal pump indicates that the pump is of __________ flow type.

A) Axial B) Radial C) Mixed D) None of these

Discuss

Answer & Solution

Answer: Option A

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

With increase in pump speed, its NPSH requirement

A) Decreases B) Increases C) Remains unaltered D) Can either increase or decrease ; depends on other factors

Discuss

Answer & Solution

Answer: Option B

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

In a/an __________ , the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure.

A) Rotameter B) Pitot tube C) Venturimeter D) Flow nozzle

Discuss

Answer & Solution

Answer: Option B

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

In a stabilised soap bubble, pressure inside it compared to external pressure is

A) More B) Less C) Same D) Unpredictable

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