Compressors, Gas Turbines and Jet Engines
Choose the correct statement

Gas turbines have high standby losses and require lot of maintenance
Gas turbines has flat efficiency at part loads
Gas turbine requires lot of cooling water
Gas turbine is capable of rapid start up and loading

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Compressors, Gas Turbines and Jet Engines
The overall isothermal efficiency of compressor is defined as the ratio of

Isothermal h.p. to the BHP of motor
Isothermal h.p. to adiabatic h.p.
Work to compress air isothermally to work for actual compression
Power to drive compressor to isothermal h.p.

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Compressors, Gas Turbines and Jet Engines
The mean effective pressure of the compressor is the

None of these
Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions
Volume of air sucked by the compressor during its suction stroke
Volume of air delivered by the compressor

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