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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Work ratio of a gas turbine may be improved by

Increasing the turbine work
Decreasing the compression work
Increasing the compression work
Both (A) and (C) above

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Compressors, Gas Turbines and Jet Engines
Propulsive efficiency is defined as ratio of

Thrust power and propulsive power
Propulsive power and fuel input
Engine output and propulsive power
Thrust power and fuel energy

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Compressors, Gas Turbines and Jet Engines
The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the

Total temperature drop
Adiabatic temperature drop in the stage
Total adiabatic temperature drop
Total temperature drop in the stage

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Compressors, Gas Turbines and Jet Engines
The gas in cooling chamber of a closed cycle gas turbine is cooled at

None of the listed here
Constant volume
Constant pressure
Constant temperature

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Compressors, Gas Turbines and Jet Engines
The blades of gas turbine are made of

High alloy steel
High nickel alloy
Carbon steel
Stainless steel

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Compressors, Gas Turbines and Jet Engines
Axial flow compressor resembles

Centrifugal pump
Reciprocating pump
Turbine
Sliding vane compressor

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