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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.

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

Buoyant force is___________________?

A resultant force acting on a floating body

B equal to the volume of liquid displaced

C force necessary to keep a body in equilibrium

D the resultant force on a body due to the fluid surrounding it

Review Detailed Answer

Correct Answer: the resultant force on a body due to the fluid surrounding it

Metacentre is the point of intersection of _________________________?

A vertical upward force through e.g. of body and center line of body

B buoyant force and the center line of body

C mid point between e.g. and center of buoyancy

D all of the above

Review Detailed Answer

Correct Answer: buoyant force and the center line of body

Center of buoyancy is the___________________?

A centroid of the displaced volume of fluid

B center of pressure of displaced volume

C e.g. of floating ‘body

D does not exist

Review Detailed Answer

Correct Answer: centroid of the displaced volume of fluid

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

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_______________?

Buoyant force is___________________?

Metacentre is the point of intersection of _________________________?

Center of buoyancy is the___________________?