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Compressors, Gas Turbines and Jet Engines

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

High nickel alloy
High alloy steel
Stainless steel
Carbon steel

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Compressors, Gas Turbines and Jet Engines
A compressor at high altitudes will require ___ power.

More
None of the listed here
Less
Same

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Compressors, Gas Turbines and Jet Engines
The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.

Same
One-half
One sixth
One fourth

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Compressors, Gas Turbines and Jet Engines
The compression ratio in a gas turbine is of the order of

0.50069444444444
0.33402777777778
3.5 : 1
0.20902777777778

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Compressors, Gas Turbines and Jet Engines
Only rocket engines can be propelled to space because

They can generate very high thrust
They are not air breathing engines
These engines can work on several fuels
They have high propulsion efficiency

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency for reciprocating air compressors is about

70 to 90%
10 to 40%
60 to 70%
40 to 60%

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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