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

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

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

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

A receiver in compressor installations is used to damp pressure waves in compressor discharge.

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering /
Question: A receiver in compressor installations is used to damp pressure waves in compressor discharge.
[A].

Yes

[B].

No

Answer: Option A

Explanation:

No answer description available for this question.

A receiver in compressor installations is used to damp pressure waves in compressor discharge. Read More »

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

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

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 Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

If p1, is the pressure of air entering the L.P. cylinder and p2 is the pressure of air leaving the L.P. cylinder (or intercooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D1 = Dia. of L.P. cylinder, and D2 = Dia. of H.P. cylinder)

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering /
Question: If p1, is the pressure of air entering the L.P. cylinder and p2 is the pressure of air leaving the L.P. cylinder (or intercooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D1 = Dia. of L.P. cylinder, and D2 = Dia. of H.P. cylinder)
[A].

D1/D2 = p1p2

[B].

D1/D2 = p1/p2

[C].

D1/D2 = p2/p1

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

If p1, is the pressure of air entering the L.P. cylinder and p2 is the pressure of air leaving the L.P. cylinder (or intercooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D1 = Dia. of L.P. cylinder, and D2 = Dia. of H.P. cylinder) Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

For minimum work in multi-stage compression, the workdone on all stages should be equal.

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering /
Question: For minimum work in multi-stage compression, the workdone on all stages should be equal.
[A].

Yes

[B].

No

Answer: Option A

Explanation:

No answer description available for this question.

For minimum work in multi-stage compression, the workdone on all stages should be equal. Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

Maximum work is saved in a two stage reciprocating air compressor with incomplete intercooling.

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering /
Question: Maximum work is saved in a two stage reciprocating air compressor with incomplete intercooling.
[A].

Agree

[B].

Disagree

Answer: Option B

Explanation:

No answer description available for this question.

Maximum work is saved in a two stage reciprocating air compressor with incomplete intercooling. Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering

Intercooling in multi-stage compressors is done

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering /
Question: Intercooling in multi-stage compressors is done
[A].

to cool the air during compression

[B].

to cool the air at delivery

[C].

to enable compression in two stages

[D].

to minimise the work of compression

Answer: Option D

Explanation:

No answer description available for this question.

Intercooling in multi-stage compressors is done Read More »

Compressors, Gas Dynamics and Gas Turbines, Mechanical Engineering