COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

600 KW

15 KW

6000 KW

150 KW

Start-stop motor

Constant speed unloader

Variable speed

Relief valve

High h.p. and low weight

Small frontal area and high h.p.

High speed and high h.p.

Low weight and small frontal area

Equal to

More than

Less than

None of these

All of the listed here

Produces uniform torque

Has more efficiency

Can be driven at a very high speed

First increase, reach maximum and then decrease

Decrease continuously

Increase first at fast rate and then slow

Increase first at slow rate and then fast

None of the listed here

More than

Less than

Equal to

Output and input

Actual compressor work and theoretical compressor work

Compressor work and turbine work

Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet

May increase or decrease depending on compressor capacity

Decreases

Increases

Remain unaffected

Mechanical efficiency

Compressor efficiency

Volumetric efficiency

Isothermal efficiency