Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Reduces exhaust temperature Do not damage turbine blades Increases power output Improves thermal efficiency Reduces exhaust temperature Do not damage turbine blades Increases power output Improves thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in a gas turbine Decreases the thermal efficiency Increases the compressor work Increases the turbine work Increases the thermal efficiency Decreases the thermal efficiency Increases the compressor work Increases the turbine work Increases the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The type of rotary compressor used in aeroplanes, is of Axial flow type Radial flow type Centrifugal type None of these Axial flow type Radial flow type Centrifugal type None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure and temperature conditions of air at the suction of compressor are Pressure slightly less than atmospheric and temperature slightly more than atmospheric Atmospheric Slightly less than atmospheric Slightly more than atmospheric Pressure slightly less than atmospheric and temperature slightly more than atmospheric Atmospheric Slightly less than atmospheric Slightly more than atmospheric 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 maximum during None of these Isothermal compression Polytropic compression Isentropic compression None of these Isothermal compression Polytropic compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression though most efficient, but is not practicable because It does not increase pressure much It is impossible in practice Compressor has to run at very slow speed to achieve it It requires very big cylinder It does not increase pressure much It is impossible in practice Compressor has to run at very slow speed to achieve it It requires very big cylinder ANSWER DOWNLOAD EXAMIANS APP
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