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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.

Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?

A 1000 kg

B 4000 kg

C 2000 kg

D 8000 kg

Review Detailed Answer

Correct Answer: 1000 kg

Rotameter is a device used to measure______________?

A absolute pressure

B velocity of fluid

C flow

D rotation

Review Detailed Answer

Correct Answer: flow

In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?

A constant

B variable

C zero

D zero under limiting conditions

Review Detailed Answer

Correct Answer: zero

During the opening of a valve in a pipe line, the flow is_________________?

A steady

B unsteady

C uniform

D laminar

Review Detailed Answer

Correct Answer: steady

The flow which neglects changes in a transverse direction is known as_________________?

A one dimensional flow

B uniform flow

C steady flow

D turbulent flow

Review Detailed Answer

Correct Answer: one dimensional flow

The flow in which conditions do not change with time at any point, is known as_________________?

A one dimensional flow

B uniform flow

C steady flow

D turbulent flow

Review Detailed Answer

Correct Answer: steady flow

The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as__________________?

A one dimensional flow

B uniform flow

C steady flow

D turbulent flow

Review Detailed Answer

Correct Answer: turbulent flow

Two dimensional flow occurs when________________?

A the direction and magnitude of the velocity at all points are identical

B the velocity of successive fluid particles, at any point, is the same at successive periods of time

C the magnitude and direction of the velocity do not change from point to point in the fluid

D the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

Review Detailed Answer

Correct Answer: the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is _________________?

A 0.83

B 0.6

C 0.4

D 0.3

Review Detailed Answer

Correct Answer: 0.6

In a free vortex motion, the radial component of velocity everywhere is________________?

A maximum

B minimum

C zero

D non-zero and finite

Review Detailed Answer

Correct Answer: zero

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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

All Topics 1919

All Topics 1919

Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?

Rotameter is a device used to measure______________?

In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?

During the opening of a valve in a pipe line, the flow is_________________?

The flow which neglects changes in a transverse direction is known as_________________?

The flow in which conditions do not change with time at any point, is known as_________________?

The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as__________________?

Two dimensional flow occurs when________________?

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is _________________?

In a free vortex motion, the radial component of velocity everywhere is________________?