COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

It has high propulsive efficiency at high speeds

It has high power for take off

It can fly at supersonic speeds

It can fly at high elevations

15: 1

50: 1.

7: 1

30: 1

p₁ = p3

p₁/p₃ = p₂/p₁

p₁ = p₂ p3

p₂/p₁ = p₃/p₂

Isothermal H.P/indicated H.R

Isothermal H.P./shaft H.R

Compression work/motor input

Total output/air input

Maximum cycle temperature alone

Both pressure ratio and maximum cycle temperature

Pressure ratio alone

Minimum cycle temperature alone

None of the listed here

Constant volume

Constant pressure

Constant temperature

Mechanical balance is better

More loss of air due to leakage past the cylinder

Air can be cooled perfectly in between

Better lubrication is possible advantages of multistage

Centrifugal pump

Reciprocating pump

Sliding vane compressor

Turbine

p₁ p₂

(p₁ - p₂)/2

(p₁ + p₂)/2

p₁/p₂

D₁/D₂ = (p₁ p₃)1/2

D₁/D₂ = (p₃/p₁)1/4

D₁/D₂ = (p₁/p₃)1/4

D₁/D₂ = (p₁ p₃)1/4