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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of

0.045833333333333
0.16736111111111
0.042361111111111
0.084027777777778

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Compressors, Gas Turbines and Jet Engines
The following property is most important for material used for gas turbine blade

Toughness
Fatigue
Creep
Corrosion resistance

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Compressors, Gas Turbines and Jet Engines
Phenomenon of choking in compressor means

No flow of air
Increased inclination of chord with air steam
Fixed mass flow rate regardless of pressure ratio
Reducing mass flow rate with increase in pressure ratio

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Compressors, Gas Turbines and Jet Engines
In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to

20°C and 1 kg/cm²
N.T.P. conditions
Intake temperature and pressure conditions
0°C and 1 kg/cm²

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Compressors, Gas Turbines and Jet Engines
Air-fuel ratio in a jet engine will be of the order of

0.41736111111111
2.5006944444444
0.83402777777778
0.62569444444444

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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

Remain same
First increases and then decreases
Decreases
Increases

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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