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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Gas turbines for power generation are normally used

To supply peak load requirements
To enable start thermal power plant
In emergency
To supply base load requirements

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Compressors, Gas Turbines and Jet Engines
For minimum work required to compress and deliver a quantity of air by multistage compression

The intercooling should be perfect
All of the listed here
The compression ratio in each stage should be same
The work-done in each stage should be same

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Compressors, Gas Turbines and Jet Engines
In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as

Slip factor
Work factor
Pressure coefficient
Degree of reaction

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Compressors, Gas Turbines and Jet Engines
The compressor efficiency is the

Isothermal H.P./shaft H.R
Total output/air input
Compression work/motor input
Isothermal H.P/indicated H.R

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Compressors, Gas Turbines and Jet Engines
Ratio of indicated h.p. to shaft h.p. in known as

Compressor efficiency
Volumetric efficiency
Mechanical efficiency
Isothermal efficiency

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

High nickel alloy
Carbon steel
Stainless steel
High alloy steel

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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