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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure)

p₁ p₂
(p₁ - p₂)/2
p₁/p₂
(p₁ + p₂)/2

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

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

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Compressors, Gas Turbines and Jet Engines
In axial flow compressor, exit flow angle deviation from the blade angle is a function of

Blade camber and space-chord ratio
Blade camber
Blade camber and incidence angle
Space-chord ratio

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Compressors, Gas Turbines and Jet Engines
The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called

Velocity coefficient
Slip factor
Velocity factor
None of these

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the compressed air main line should

Rise gradually towards the point of use
Drop gradually towards the point of use
Be laid vertically
Be laid exactly horizontally

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Compressors, Gas Turbines and Jet Engines
The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine is

May be less or more depending on ambient conditions
Less
Same
More

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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