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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Compression efficiency is compared against

Isothermal compression
Ideal compression
Isentropic compression
Adiabatic compression

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Compressors, Gas Turbines and Jet Engines
The thermal efficiency of a gas turbine as compared to a diesel plant is

Same
Depends on other factors
More
Less

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Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler’s work is known as

Compressor efficiency
Isentropic efficiency
Pressure coefficient
Euler

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Compressors, Gas Turbines and Jet Engines
The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.

None of these
Increased
Zero
Reduced

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Compressors, Gas Turbines and Jet Engines
Gas turbine works on

Ericsson cycle
Carnot cycle
Brayton or Atkinson cycle
Rankine cycle

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Compressors, Gas Turbines and Jet Engines
More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than

10 kg/cm²
6 kg/cm²
14.7 kg/cm²
2 kg/cm²

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