Compressors, Gas Turbines and Jet Engines
The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will

First increase, reach maximum and then decrease
Increase first at slow rate and then fast
Decrease continuously
Increase first at fast rate and then slow

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Compressors, Gas Turbines and Jet Engines
Which one of the following is the effect of blade shape on performance of a centrifugal compressor?

Forward curved blades has higher efficiency
Backward curved blades has poor efficiency
Backward curved blades lead to stable performance
Forward curved blades produce lower pressure ratio

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