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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
During base load operation, the best method of controlling compressor is

Constant speed unloader
Variable speed
Relief valve
Start-stop motor

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Compressors, Gas Turbines and Jet Engines
The maximum temperature in a gas turbine is

200°C
700°C
500°C
1000°C

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Compressors, Gas Turbines and Jet Engines
The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine is

More
Same
Less
May be less or more depending on ambient conditions

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Compressors, Gas Turbines and Jet Engines
The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow)

W₂/(W₁ + W₂)
(W₁ + W₂)/W₁
(W₁ + W₂)/W₂
W₁/(W₁ + W₂)

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Compressors, Gas Turbines and Jet Engines
For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will

Other factors control it
Decrease
Increase
Remain unaffected

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Compressors, Gas Turbines and Jet Engines
A closed cycle gas turbine works on

Ericsson cycle
Rankine cycle
Joule cycle
Carnot cycle

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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