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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The air entry velocity m a rocket as compared to aircraft is

More
Same
Less
Zero

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Compressors, Gas Turbines and Jet Engines
The thrust of a jet propulsion power unit can be increased by

All of these
Burning fuel after gas turbine
Injecting ammonia into the combustion chamber
Injecting water into the compressor

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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
The criterion of the thermodynamic efficiency for rotary compressor is

None of the listed here
Polytropic compression
Isentropic compression
Isothermal compression

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Compressors, Gas Turbines and Jet Engines
The main purpose of reheating in gas turbine is to

Increase speed
Reduce turbine size
Increase temperature
Increase power output

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Compressors, Gas Turbines and Jet Engines
The volume of air delivered in a medium capacity air compressor per unit time is

None of these
0.15 to 5 m³/s
0.1 to 1.2 m³/s
Above 5 m³/s

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