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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of

0.99
0.75
0.85
0.9

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Compressors, Gas Turbines and Jet Engines
The type of rotary compressor used in aeroplanes, is of

None of these
Axial flow type
Radial flow type
Centrifugal type

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Compressors, Gas Turbines and Jet Engines
The thrust on the rotor in a centrifugal compressor is produced by

Radial component
None of these
Axial component
Tangential component

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Compressors, Gas Turbines and Jet Engines
For an irreversible gas turbine cycle, the efficiency and work ratio both depend on

Maximum cycle temperature alone
Minimum cycle temperature alone
Both pressure ratio and maximum cycle temperature
Pressure ratio alone

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Compressors, Gas Turbines and Jet Engines
Standard air is the air at ___ and relative humidity of 36 percent.

0.1 bar and 20°C
1 bar and 40°C
1 bar and 20°C
0.1 bar and 40°C

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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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