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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The fuel consumption in gas turbines is accounted for by

Higher calorific value
Lower heating value
Higher heating value
Heating value

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Compressors, Gas Turbines and Jet Engines
A jet engine has

Propeller in front
No propeller
Propeller on the top
Propeller at back

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Compressors, Gas Turbines and Jet Engines
For speed above 3000 km/hour, it is more advantageous to use

Ramjet engine
Propellers
Rockets
Turbojet engine

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Compressors, Gas Turbines and Jet Engines
The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)

1 - r ɣ-1
1 - (1/r) ɣ-1/ɣ
1 - (1/r) ɣ/ɣ-1
r ɣ-1

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Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating air compressor, without clearance, the compression of air may be

Isothermal
Isentropic
Polytropic
Any one of these

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Compressors, Gas Turbines and Jet Engines
Standard air is the air at ___ and relative humidity of 36 percent.

1 bar and 40°C
0.1 bar and 40°C
1 bar and 20°C
0.1 bar and 20°C

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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