Compressors | Gas Turbines and Jet Engines

Rotary compressors are suitable for ____________________?

Byadmin January 23, 2019August 15, 2021

Rotary compressors are suitable for ____________________?

A. large discharge at high pressure
B. low discharge at high pressure
C. large discharge at low pressure
D. low discharge at low pressure
E. there is no such limitation

Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

If the flow of air through the compressor is perpendicular to its axis, then it is a

Question: If the flow of air through the compressor is perpendicular to its axis, then it is a
[A].

reciprocating compressor
[B].
centrifugal compressor
[C].
axial flow compressor
[D].
turbo compressor

Answer: Option B

Explanation:

No answer description available for this question.

Read More If the flow of air through the compressor is perpendicular to its axis, then it is a
Compressors | Gas Turbines and Jet Engines

Turbo propeller has the following additional feature over the turbojet __________________?

Turbo propeller has the following additional feature over the turbojet __________________?

A. peopeller
B. diffuser
C. intercooler
D. turbine and combustion chamber
E. starting engine

Read More Turbo propeller has the following additional feature over the turbojet __________________?
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

For minimum work required to compress and deliver a quantity of air by multi-stage compression,

Question: For minimum work required to compress and deliver a quantity of air by multi-stage compression,
[A].

the compression ratio in each stage should be same
[B].
the intercooling should be perfect
[C].
the workdone in each stage should be same
[D].
all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More For minimum work required to compress and deliver a quantity of air by multi-stage compression,
Compressors | Gas Turbines and Jet Engines

As the value of index ‘«’ is decreased, the volumetric efficiency will___________________?

As the value of index ‘«’ is decreased, the volumetric efficiency will___________________?

A. increase
B. decrease
C. remain unaffected
D. may increase/decrease depending on compressor clearance
E. none of the above

Read More As the value of index ‘«’ is decreased, the volumetric efficiency will___________________?
Compressors | Gas Turbines and Jet Engines

To aviod moisture troubles, the compressed air main line should __________________?

To aviod moisture troubles, the compressed air main line should __________________?

A. rise gradually towards the point of use
B. drop gradually towards the point of use
C. be laid vertically
D. be laid exactly horizontally
E. none of the above

Read More To aviod moisture troubles, the compressed air main line should __________________?
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

If p1 is the pressure of air entering the L.P, cylinder and p3 is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by

Question: If p1 is the pressure of air entering the L.P, cylinder and p3 is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by
[A].

D1/D2 = (p1p3)1/2
[B].
D1/D2 = (p1/p3)1/4
[C].
D1/D2 = (p1p3)1/4
[D].
D1/D2 = (p3/p1)1/4

Answer: Option D

Explanation:

No answer description available for this question.

Read More If p1 is the pressure of air entering the L.P, cylinder and p3 is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by

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