COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

None of these

Radial flow type

Axial flow type

Centrifugal type

Same

Low/high depending on make and type

High

Low

1 to 5 bar

8 to 10 bar

10 to 15 bar

5 to 8 bar

None of these

Isothermal compression

Isentropic compression

Polytropic compression

Increase power output

Increase temperature

Reduce turbine size

Increase speed

Stroke volume and clearance volume

Absolute discharge pressure to the absolute intake pressure

Gauge discharge pressure to the gauge intake pressure

Pressures at discharge and suction corresponding to same temperature

Compressor has to run at very slow speed to achieve it

It requires very big cylinder

It is impossible in practice

It does not increase pressure much

Small quantity of air at low pressure

Large quantity of air at low pressure

Small quantity of air at high pressure

Large quantity of air at high pressure

Throttle control

Clearance control

Blow off control

Any one of the above

Reducing mass flow rate with increase in pressure ratio

No flow of air

Increased inclination of chord with air steam

Fixed mass flow rate regardless of pressure ratio