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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is

High
Low
Same
Low/high depending on make and type

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Compressors, Gas Turbines and Jet Engines
The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is

More
Less
More/less depending on compressor capacity
Same

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Compressors, Gas Turbines and Jet Engines
As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio

First increases and then decreases
Remain same
Increases
Decreases

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Compressors, Gas Turbines and Jet Engines
The compressed air may be used

In starting and supercharging of I.C. engines
For operating pneumatic drills
In gas turbine plants
All of the listed here

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Compressors, Gas Turbines and Jet Engines
In jet propulsion power unit, the inlet duct of diverging shape is used in order to

Provide robust structure
Beautify the shape
Convert kinetic energy of air into pressure energy
Collect more air

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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

0.045833333333333
0.042361111111111
0.084027777777778
0.16736111111111

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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