Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in Decrease of heat loss in exhaust Maximum work output High thermal efficiency Reduction in compressor work Decrease of heat loss in exhaust Maximum work output High thermal efficiency Reduction in compressor work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is Low High Low/high depending on make and type Same Low High Low/high depending on make and type Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called Pressure ratio Degree of reaction Pressure coefficient Slip factor Pressure ratio Degree of reaction Pressure coefficient Slip factor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at High altitudes Low altitudes Low speeds High speeds High altitudes Low altitudes Low speeds High speeds ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature 0.01 0.005 0.05 0.001 0.01 0.005 0.05 0.001 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion Heated Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion Heated Exhaust gases drive the compressor ANSWER DOWNLOAD EXAMIANS APP
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