Compressors, Gas Turbines and Jet Engines During peak load periods, the best method of controlling compressors is Variable speed Start-stop motor Constant speed unloader Relief valve Variable speed Start-stop motor Constant speed unloader Relief valve ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor with clearance volume Decreases with increase in compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity In not dependent upon compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity In not dependent upon compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine cycle with regenerator Allows operation at very high altitudes Decreases heat loss is exhaust Allows high compression ratio Increases thermal efficiency Allows operation at very high altitudes Decreases heat loss is exhaust Allows high compression ratio Increases thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine uses __________ for the combustion of its fuel. Surrounding air None of these Its own oxygen Compressed atmospheric air Surrounding air None of these Its own oxygen Compressed atmospheric air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volume of air sucked by the compressor during its suction stroke is called Swept volume None of these Compressor capacity Free air delivery Swept volume None of these Compressor capacity Free air delivery ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during Isothermal compression Polytropic compression Isentropic compression None of these Isothermal compression Polytropic compression Isentropic compression None of these ANSWER DOWNLOAD EXAMIANS APP
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