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In a single acting reciprocating air compressor, without clearance, the compression of air may be

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: In a single acting reciprocating air compressor, without clearance, the compression of air may be
[A].

isothermal

[B].

polytropic

[C].

isentropic

[D].

any one of these

Answer: Option D

Explanation:

No answer description available for this question.

In a single acting reciprocating air compressor, without clearance, the compression of air may be Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during
[A].

isothermal compression

[B].

isentropic compression

[C].

polytropic compression

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

In a single stage, single acting reciprocating air compressor without clearance volume, the workdone is maximum during Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone is minimum during

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone is minimum during
[A].

isothermal compression

[B].

isentropic compression

[C].

polytropic compression

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone is minimum during Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.
[A].

one stroke

[B].

two strokes

[C].

three strokes

[D].

four strokes

Answer: Option B

Explanation:

No answer description available for this question.

In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston. Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

In air compressors, free air delivery means the

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: In air compressors, free air delivery means the
[A].

actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions

[B].

volume of air delivered by the compressor

[C].

volume of air sucked by the compressor during its suction stroke

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

In air compressors, free air delivery means the Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

The capacity of a compressor is expressed in

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: The capacity of a compressor is expressed in
[A].

kg/m2

[B].

kg/m3

[C].

m3/min

[D].

m3/kg

Answer: Option C

Explanation:

No answer description available for this question.

The capacity of a compressor is expressed in Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

Free air is the air at atmospheric conditions at any specific location.

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: Free air is the air at atmospheric conditions at any specific location.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Free air is the air at atmospheric conditions at any specific location. Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

A compressor must be driven by some prime mover.

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: A compressor must be driven by some prime mover.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

A compressor must be driven by some prime mover. Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

A machine used to raise the pressure of air is called

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering / admin

Question: A machine used to raise the pressure of air is called
[A].

gas turbine

[B].

I.C engine

[C].

compressor

[D].

air motor

Answer: Option C

Explanation:

No answer description available for this question.

A machine used to raise the pressure of air is called Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

In which of the following conditions, the idle CO percentage should be measured with the vehicle ?

Automobile Engineering, Mechanical Engineering / admin

Question: In which of the following conditions, the idle CO percentage should be measured with the vehicle ?
[A].

Headlights and other electrical devices are switched off.

[B].

Headlights and other electrical devices are switched on.

[C].

Headlights and other lights are switched off.

[D].

Headlights are switched on.

Answer: Option A

Explanation:

No answer description available for this question.

In which of the following conditions, the idle CO percentage should be measured with the vehicle ? Read More »

Automobile Engineering, Mechanical Engineering