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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

Mercury does not wet glass. This is due to property of liquid known as__________________?

A adhesion

B cohesion

C surface tension

D viscosity

Review Detailed Answer

Correct Answer: surface tension

The value of mass density in kgsecVm4 for water at 0°C is_________________?

A 1

B 1000

C 100

D 101.9

Review Detailed Answer

Correct Answer: 1

An ideal flow of any fluid must fulfill the following____________________?

A Newton’s law of motion

B Newton’s law of viscosity

C Pascal’ law

D Continuity equation

Review Detailed Answer

Correct Answer: Continuity equation

In a static fluid ___________________?

A resistance to shear stress is small

B fluid pressure is zero

C linear deformation is small

D only normal stresses can exist

Review Detailed Answer

Correct Answer: only normal stresses can exist

In a forced vortex, the velocity of flow everywhere within the fluid is__________________?

A maximum

B minimum

C zero

D non-zero finite

Review Detailed Answer

Correct Answer: zero

For pipes, laminar flow occurs when Roynolds number is__________________?

A less than 2000

B between 2000 and 4000

C more than 4000

D less than 4000

Review Detailed Answer

Correct Answer: less than 2000

The fluid forces considered in the Navier Stokes equation are__________________?

A gravity, pressure and viscous

B gravity, pressure and turbulent

C pressure, viscous and turbulent

D gravity, viscous and turbulent

Review Detailed Answer

Correct Answer: gravity, pressure and viscous

All the terms of energy in Bernoulli’s equation have dimension of_______________?

A energy

B work

C mass

D length

Review Detailed Answer

Correct Answer: length

For hypersonic flow, the Mach number is___________________?

A unity

B greater than unity

C greater than 2

D greater than 4

Review Detailed Answer

Correct Answer: greater than 4

Normal depth in open channel flow is the depth of flow corresponding to_______________?

A steady flow

B unsteady flow

C laminar flow

D uniform flow

Review Detailed Answer

Correct Answer: uniform flow

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Mercury does not wet glass. This is due to property of liquid known as__________________?

The value of mass density in kgsecVm4 for water at 0°C is_________________?

An ideal flow of any fluid must fulfill the following____________________?

In a static fluid ___________________?

In a forced vortex, the velocity of flow everywhere within the fluid is__________________?

For pipes, laminar flow occurs when Roynolds number is__________________?

The fluid forces considered in the Navier Stokes equation are__________________?

All the terms of energy in Bernoulli’s equation have dimension of_______________?

For hypersonic flow, the Mach number is___________________?

Normal depth in open channel flow is the depth of flow corresponding to_______________?