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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Maximum delivery pressure is a rotary air compressor is of the order of

25 kg/cm²
10 kg/cm²
6 kg/cm²
16 kg/cm²

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Compressors, Gas Turbines and Jet Engines
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of

Compressed air
Atmospheric air
Oxygen alone
Vacuum

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Compressors, Gas Turbines and Jet Engines
The compression ratio in a gas turbine is of the order of

0.33402777777778
0.50069444444444
0.20902777777778
3.5 : 1

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Compressors, Gas Turbines and Jet Engines
In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the

Thrust and range of aircraft
Efficiency of the engine
Both (A) and (B)
None of these

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Compressors, Gas Turbines and Jet Engines
In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged into

Back to the compressor
Atmosphere
Vacuum
Discharge nozzle

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Compressors, Gas Turbines and Jet Engines
As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio

First increases and then decreases
Remain same
Increases
Decreases

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