Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor with clearance volume Increases with increase in compression ratio In not dependent upon compression ratio May increase/decrease depending on compressor capacity Decreases with increase in compression ratio Increases with increase in compression ratio In not dependent upon compression ratio May increase/decrease depending on compressor capacity Decreases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Petrol engine Compressed air Diesel engine C. electric motor Petrol engine Compressed air Diesel engine C. electric motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The effective power of gas turbines is increased by adding the following in compressor Nitrogen Carbon dioxide Hydrogen Ammonia and water vapour Nitrogen Carbon dioxide Hydrogen Ammonia and water vapour ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The stagnation pressure rise in a centrifugal compressor takes place In the impeller only In the diffuser and impeller In the diffuser only In the inlet guide vanes only In the impeller only In the diffuser and impeller In the diffuser only In the inlet guide vanes only ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio Increases First increases and then decreases Remain same Decreases Increases First increases and then decreases Remain same Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency and work ratio of a gas turbine plant can be increased by Reheating the air after partial expansion in the turbine Adding heat exchanger All of these Injecting water in/around combustion chamber Reheating the air after partial expansion in the turbine Adding heat exchanger All of these Injecting water in/around combustion chamber ANSWER DOWNLOAD EXAMIANS APP
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