Hydraulics and Fluid Mechanics | Mechanical Engineering

A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

Byadmin September 14, 2022

Question: A body floating in a liquid is said to be in neutral equilibrium, if its metacentre
[A].

coincides with its centre of gravity

[B].

lies above its centre of gravity

[C].

lies below its centre of gravity

[D].

lies between the centre of buoyancy and centre of gravity

Answer: Option A

Explanation:

No answer description available for this question.

Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

The center of pressure of a surface subjected to fluid pressure is the point____________________?

The center of pressure of a surface subjected to fluid pressure is the point____________________?

A. on the surface at which resultant pres-sure acts
B. on the surface at which gravitational force acis
C. at which all hydraulic forces meet
D. similar to metacentre
E. where pressure equivalent to hydraulic thrust will act

Read More The center of pressure of a surface subjected to fluid pressure is the point____________________?
Engineering Mechanics | Mechanical Engineering

All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.

Question: All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.
Hydraulics and Fluid Mechanics | Mechanical Engineering

A notch is, usually, made of a metallic plate.

Question: A notch is, usually, made of a metallic plate.
[A].

Correct
[B].
Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Read More A notch is, usually, made of a metallic plate.
Hydraulics and Fluid Mechanics | Mechanical Engineering

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

Question: In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
[A].

less than
[B].
more than

Answer: Option A

Explanation:

No answer description available for this question.

Read More In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
Engineering Materials | Mechanical Engineering

For a steel containing 0.8% carbon

Question: For a steel containing 0.8% carbon
[A].

there is no critical point
[B].
there is only one critical point
[C].
there are two critical points
[D].
there can be any number of critical points

Answer: Option B

Explanation:

No answer description available for this question.

Read More For a steel containing 0.8% carbon
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Air refrigeration cycle is used in

Question: Air refrigeration cycle is used in
[A].

commercial refrigerators
[B].
domestic refrigerators
[C].
air-conditioning
[D].
gas liquefaction

Answer: Option D

Explanation:

No answer description available for this question.

Read More Air refrigeration cycle is used in

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