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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

Backward curved
Forward curved
Radial
None of the listed here

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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
(p₁ - p₂)/2
p₁/p₂
(p₁ + p₂)/2

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Compressors, Gas Turbines and Jet Engines
The advantage of multistage compression over single stage compression is

Decreased discharge temperature
All of these
Higher volumetric efficiency
Lower power consumption per unit of air delivered

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Compressors, Gas Turbines and Jet Engines
Ram compression in turbojet involves

Compression of inlet air
Increasing speed of incoming air
Lost work
Reduction of speed of incoming air and conversion of part of it into pressure energy

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Compressors, Gas Turbines and Jet Engines
In air breathing jet engine, the jet is formed by expanding

Plasma
Liquid
Solids
Highly heated atmospheric air

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Compressors, Gas Turbines and Jet Engines
In a jet engine, the air-fuel ratio is

1.6673611111111
2.5006944444444
1.2506944444444
2.0840277777778

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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