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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Maximum temperature in a gas turbine is of the order of

1000°C
2000°C
1500°C
700°C

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Compressors, Gas Turbines and Jet Engines
The velocity of air entering in a rocket is ___ as compared to an aircraft.

More
Same
Zero
Less

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Compressors, Gas Turbines and Jet Engines
If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by

1 + k - k (p₂/p₁) n-1/n
1 - k + k (p₁/p₂) n- 1/n
1 - k + k (p₁/p₂)1/n
1 + k - k (p₂/p₁)1/n

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Compressors, Gas Turbines and Jet Engines
Out of the following, from where you will prefer to take intake for air compressor

From outside atmosphere at 1°C
From an air conditioned room maintained at 20°C
From coal yard side
From a side where cooling tower is located nearby

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Compressors, Gas Turbines and Jet Engines
The efficiency of roots blower ________ with the increase in pressure ratio.

None of these
Does not change
Increases
Decreases

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Compressors, Gas Turbines and Jet Engines
Work ratio of a gas turbine may be improved by

Increasing the turbine work
Decreasing the compression work
Increasing the compression work
Both (A) and (C) above

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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