Hydraulics and Fluid Mechanics | Mechanical Engineering

In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.

Byadmin September 14, 2022

Question: In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.
[A].

True

[B].

False

Answer: Option B

Explanation:

No answer description available for this question.

Hydraulics and Fluid Mechanics | Mechanical Engineering

A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

Question: A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
[A].

0.46
[B].
0.64
[C].
0.78
[D].
0.87

Answer: Option B

Explanation:

No answer description available for this question.

Read More A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

The resultant upward pressure of the fluid on an immersed body is called__________________?

The resultant upward pressure of the fluid on an immersed body is called__________________?

A. upthrust
B. buoyancy
C. center of pressure
D. all the above are correct
E. none of above is correct

Read More The resultant upward pressure of the fluid on an immersed body is called__________________?
Ic Engines And Nuclear Power Plants | Mechanical Engineering

In a four stroke cycle diesel engine, the compression

Question: In a four stroke cycle diesel engine, the compression
[A].

starts at 40° after bottom dead centre and ends at 10° before top dead centre
[B].
starts at 40° before top dead centre and ends at 40° after top dead centre
[C].
starts at top dead centre and ends at 40° before bottom dead centre
[D].
may start and end anywhere

Answer: Option A

Explanation:

No answer description available for this question.

Read More In a four stroke cycle diesel engine, the compression
Hydraulic Machines | Mechanical Engineering

A hydraulic ram is a device used to

Question: A hydraulic ram is a device used to
[A].

store the energy of water
[B].
increase the pressure of water
[C].
to lift water from deep wells
[D].
to lift small quantity of water to a greater height when a large quantity of water is available at a smaller height

Answer: Option D

Explanation:

No answer description available for this question.

Read More A hydraulic ram is a device used to
Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

Cavitation will begin when______________________?

Cavitation will begin when______________________?

A. the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
B. pressure becomes more than critical pressure
C. flow is increased
D. pressure is increased
E. none of the above

Read More Cavitation will begin when______________________?
Hydraulics and Fluid Mechanics | Mechanical Engineering

Falling drops of water become spheres due to the property of

Question: Falling drops of water become spheres due to the property of
[A].

surface tension of water
[B].
compressibility of water
[C].
capillarity of water
[D].
viscosity of water

Answer: Option A

Explanation:

No answer description available for this question.

Read More Falling drops of water become spheres due to the property of

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