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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of

0.084027777777778
0.045833333333333
0.042361111111111
0.16736111111111

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Compressors, Gas Turbines and Jet Engines
The axial flow compressor is preferred in aircraft gas turbines because of

High pressure rise
Higher thrust
Low frontal area
None of the listed here

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Compressors, Gas Turbines and Jet Engines
If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches

Isentropic
Isochoric
Adiabatic
Isothermal

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Compressors, Gas Turbines and Jet Engines
The following property is most important for material used for gas turbine blade

Corrosion resistance
Toughness
Fatigue
Creep

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Compressors, Gas Turbines and Jet Engines
A turboprop is preferred to turbojet because

It can fly at high elevations
It has high propulsive efficiency at high speeds
It has high power for take off
It can fly at supersonic speeds

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Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler work is known as

Polytropic reaction
Work coefficient
Pressure coefficient
Slip factor

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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