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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt?

18 m³/ mt.
1.5 m³/ mt.
6 m³/ mt.
3 m³/ mt.

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Compressors, Gas Turbines and Jet Engines
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of

Vacuum
Oxygen alone
Atmospheric air
Compressed air

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Compressors, Gas Turbines and Jet Engines
For minimum work required to compress and deliver a quantity of air by multistage compression

All of the listed here
The work-done in each stage should be same
The intercooling should be perfect
The compression ratio in each stage should be same

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Compressors, Gas Turbines and Jet Engines
The main purpose of reheating in gas turbine is to

Increase temperature
Reduce turbine size
Increase speed
Increase power output

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Compressors, Gas Turbines and Jet Engines
A 3 m³/min compressor means that it

Delivers 3 m³/ min of compressed air at delivery pressure
Compresses 3 m³/ min of free air
Compresses 3 m³/min of standard air
Delivers 3 m³/ min of compressed air

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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)/2
p₁/p₂
(p₁ - p₂)/2
p₁ p₂

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