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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A rocket engine uses __________ for the combustion of its fuel.

Compressed atmospheric air
None of these
Surrounding air
Its own oxygen

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Compressors, Gas Turbines and Jet Engines
During peak load periods, the best method of controlling compressors is

Constant speed unloader
Start-stop motor
Relief valve
Variable speed

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Compressors, Gas Turbines and Jet Engines
For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure)

(p₁ + p₂)/2
(p₁ - p₂)/2
p₁ p₂
p₁/p₂

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Compressors, Gas Turbines and Jet Engines
Euler's equation can be used for

Axial flow compressors
Radial flow compressors
All of these
Pumps

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

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

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Compressors, Gas Turbines and Jet Engines
More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than

2 kg/cm²
14.7 kg/cm²
10 kg/cm²
6 kg/cm²

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