Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in Maximum work output Decrease of heat loss in exhaust High thermal efficiency Reduction in compressor work Maximum work output Decrease of heat loss in exhaust High thermal efficiency Reduction in compressor work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from T₁ to T₂ at a constant pressure. Less than Equal to Greater than None of these Less than Equal to Greater than None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Higher average velocities Higher pressure ratio per stage Aerofoil blades are used Larger air handling ability per unit frontal area Higher average velocities Higher pressure ratio per stage Aerofoil blades are used Larger air handling ability per unit frontal area ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air-fuel ratio in gas turbines is of the order of 7: 1 30: 1 15: 1 50: 1. 7: 1 30: 1 15: 1 50: 1. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Cylinder clearance in a compressor should be About 100% of swept volume As small as possible About 50% of swept volume As large as possible About 100% of swept volume As small as possible About 50% of swept volume As large as possible ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum temperature in a gas turbine is of the order of 1000°C 700°C 2000°C 1500°C 1000°C 700°C 2000°C 1500°C ANSWER DOWNLOAD EXAMIANS APP
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