Engineering Mechanics | Mechanical Engineering

A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.

Byadmin September 14, 2022

Question: A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.
[A].

Yes

[B].

Answer: Option B

Explanation:

No answer description available for this question.

Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

In a four stage compressor, if the pressure at the first and third stage are 1 bar and 16 bar, then the delivery pressure at the fourth stage will be

Question: In a four stage compressor, if the pressure at the first and third stage are 1 bar and 16 bar, then the delivery pressure at the fourth stage will be
[A].

1 bar
[B].
16 bar
[C].
64 bar
[D].
256 bar

Answer: Option C

Explanation:

No answer description available for this question.

Read More In a four stage compressor, if the pressure at the first and third stage are 1 bar and 16 bar, then the delivery pressure at the fourth stage will be
Hydraulic Machines | Mechanical Engineering

For 450 m head of water, __________ shallbeused.

Question: For 450 m head of water, __________ shallbeused.
[A].

Pelton wheel
[B].
Kaplan turbine
[C].
Francis turbine
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More For 450 m head of water, __________ shallbeused.
Hydraulics and Fluid Mechanics | Mechanical Engineering

In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)

Question: In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)
[A].

[B].

[C].
P / 2sinα
[D].

Answer: Option C

Explanation:

No answer description available for this question.

Read More In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)
Engineering Materials | Mechanical Engineering

Cast iron is manufactured in

Question: Cast iron is manufactured in
[A].

blast furnace
[B].
cupola
[C].
open hearth furnace
[D].
bessemer converter

Answer: Option B

Explanation:

No answer description available for this question.

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Mechanical Engineering | Production Engineering

The angle between the face and flank of the single point cutting tool is known as

Question: The angle between the face and flank of the single point cutting tool is known as
[A].

rake angle
[B].
clearance angle
[C].
lip angle
[D].
point angle

Answer: Option C

Explanation:

No answer description available for this question.

Read More The angle between the face and flank of the single point cutting tool is known as
Ic Engines And Nuclear Power Plants | Mechanical Engineering

In a four stroke cycle petrol engine, the expansion

Question: In a four stroke cycle petrol engine, the expansion
[A].

starts at top dead centre and ends at bottom dead centre
[B].
starts at 30° before top dead centre and ends at 50° before bottom dead centre
[C].
starts at 30° after top dead centre and ends at 50° after bottom dead centre
[D].
may start and end anywhere

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a four stroke cycle petrol engine, the expansion

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