Engineering Mechanics | Mechanical Engineering

A smooth cylinder lying on its convex surface remains in __________ equilibrium.

Byadmin September 14, 2022

Question: A smooth cylinder lying on its convex surface remains in __________ equilibrium.
[A].

stable

[B].

unstable

[C].

neutral

Answer: Option B

Explanation:

No answer description available for this question.

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Defrosting of a refrigerator may be done by stopping the compressor for a short period.

Question: Defrosting of a refrigerator may be done by stopping the compressor for a short period.
[A].

Correct
[B].
Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Read More Defrosting of a refrigerator may be done by stopping the compressor for a short period.
Engineering Mechanics | Mechanical Engineering

Non-coplaner concurrent forces are those forces which

Question: Non-coplaner concurrent forces are those forces which
[A].

meet at one point, but their lines of action do not lie on the same plane
[B].
do not meet at one point and their lines of action do not lie on the same plane
[C].
meet at one point and their lines of action also lie on the same plane
[D].
do not meet at one point, but their lines of action lie on the same plane

Answer: Option A

Explanation:

No answer description available for this question.

Read More Non-coplaner concurrent forces are those forces which
Hydraulic Machines | Mechanical Engineering

For centrifugal pump impeller, the maximum value of the vane exit angle is

Question: For centrifugal pump impeller, the maximum value of the vane exit angle is
[A].

10° to 15°
[B].
15° to 20°
[C].
20° to 25°
[D].
25° to 30°

Answer: Option C

Explanation:

No answer description available for this question.

Read More For centrifugal pump impeller, the maximum value of the vane exit angle is
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

Question: A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.
[A].

same
[B].
lower
[C].
higher

Answer: Option C

Explanation:

No answer description available for this question.

Read More A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.
Hydraulic Machines | Mechanical Engineering

By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power.The saving in case of a double acting reciprocating pump is

Question: By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power.The saving in case of a double acting reciprocating pump is
[A].

39.2%
[B].
48.8%
[C].
84.8%
[D].
88.4%

Answer: Option A

Explanation:

No answer description available for this question.

Read More By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power.The saving in case of a double acting reciprocating pump is
Hydraulics and Fluid Mechanics | Mechanical Engineering

A weir, generally, used as a spillway of a dam is

Question: A weir, generally, used as a spillway of a dam is
[A].

narrow crested weir
[B].
broad crested weir
[C].
Ogee weir
[D].
submerged weir

Answer: Option C

Explanation:

No answer description available for this question.

Read More A weir, generally, used as a spillway of a dam is

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