Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would None of these Remain same Decrease Increase None of these Remain same Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A jet engine has Propeller at back No propeller Propeller in front Propeller on the top Propeller at back No propeller Propeller in front Propeller on the top ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Free air is the air at Atmospheric conditions at any specific location 15°C and 1 kg/cm² 20°C and 1 kg/cm² and relative humidity of 36% 0°C and standard atmospheric conditions Atmospheric conditions at any specific location 15°C and 1 kg/cm² 20°C and 1 kg/cm² and relative humidity of 36% 0°C and standard atmospheric conditions ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single acting reciprocating air compressor, without clearance, the compression of air may be Any one of these Isentropic Isothermal Polytropic Any one of these Isentropic Isothermal Polytropic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged into Atmosphere Back to the compressor Vacuum Discharge nozzle Atmosphere Back to the compressor Vacuum Discharge nozzle ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Do not damage turbine blades Improves thermal efficiency Increases power output Reduces exhaust temperature Do not damage turbine blades Improves thermal efficiency Increases power output Reduces exhaust temperature ANSWER DOWNLOAD EXAMIANS APP
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