Fluid Mechanics MCQ Questions & Answers

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Each section contains 100 MCQs on Fluid Mechanics .

With decrease in particle size to be fluidised by a particular fluid, the operating range of fluidisation velocity

A) Widens B) Squeezes C) Does not change D) Unpredictable from the data

Discuss

Answer & Solution

Answer: Option C

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

Hydraulic __________ works on the principle of Pascal's law of transmission of fluid pressure.

A) Press B) Turbine C) Pump D) Coupling

Discuss

Answer & Solution

Answer: Option A

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

Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible?

A) < 0.3 B) > 3 C) 50 D) 1

Discuss

Answer & Solution

Answer: Option A

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

The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for __________ fluid.

A) Newtonion B) Dilatant C) Pseudo-plastic D) Non-Newtonion

Discuss

Answer & Solution

Answer: Option A

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

Enamels and paints are generally __________ fluid.

A) Reheopectic B) Pseudo-plastic C) Thixotropic D) Dilatant

Discuss

Answer & Solution

Answer: Option B

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

In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where, T = absolute temperature )

A) $$\frac{1}{{\sqrt {\text{T}} }}$$ B) $$\frac{1}{{\text{T}}}$$ C) $$\sqrt {\text{T}} $$ D) T

Discuss

Answer & Solution

Answer: Option C

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

The pressure intensity is the same in all directions at a point in a fluid

A) Only when the fluid is frictionless B) Only when the fluid is at rest having zero velocity C) When there is no motion of one fluid layer relative to an adjacent layer D) Regardless of the motion of one fluid layer relative to an adjacent layer

Discuss

Answer & Solution

Answer: Option C

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

For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is

A) More B) Less C) Equal D) Either A or B; depends on the viscosity of the fluid

Discuss

Answer & Solution

Answer: Option A

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

Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure.

A) Small differential B) Atmospheric C) Absolute D) Gage

Discuss

Answer & Solution

Answer: Option A

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

100

Differential manometer measures the

A) Atmospheric pressure B) Sub-atmospheric pressure C) Pressure difference between two points D) None of these

Discuss

Answer & Solution

Answer: Option C

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

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Fluid Mechanics MCQ Questions & Answers | Chemical Engineering