COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

Petrol engine

Compressed air

Diesel engine

C. electric motor

10 bar

30 bar

50 bar

20 bar

Reheating the air after partial expansion in the turbine

All of these

Injecting water in/around combustion chamber

Adding heat exchanger

Stagnation pressure at the outlet

Pressure ratio

Mass flow rate

Change in load

Lower volumetric efficiency

Better mechanical balance

Less power requirement

Less loss of air due to leakage past the cylinder

In two cylinders on both sides of the piston

In one cylinder

In two cylinders

In a single cylinder on both sides of the piston

Enclosed room

Sun

Rain

Shade

Start-stop motor

Relief valve

Variable speed

Constant speed unloader

Compressed atmospheric air

None of these

Its own oxygen

Surrounding air

Work done in all stages should be equal

Work done in first stage should be more

Work done in subsequent stages should increase

Work done in subsequent stages should decrease