Compressors, Gas Turbines and Jet Engines For an irreversible gas turbine cycle, the efficiency and work ratio both depend on Pressure ratio alone Both pressure ratio and maximum cycle temperature Minimum cycle temperature alone Maximum cycle temperature alone Pressure ratio alone Both pressure ratio and maximum cycle temperature Minimum cycle temperature alone Maximum cycle temperature alone ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Improves thermal efficiency 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 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 Heated Bled gas from turbine is heated and readmitted for complete expansion Compressed air before entering the combustion chamber is heated Exhaust gases drive the compressor Heated Bled gas from turbine is heated and readmitted for complete expansion Compressed air before entering the combustion chamber is heated Exhaust gases drive the compressor 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 Isentropic Any one of these Polytropic Isothermal Isentropic Any one of these Polytropic Isothermal ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Standard air is the air at 0°C and standard atmospheric conditions 20°C and 1 kg/cm² and relative humidity 36% 15°C and 1 kg/cm² Atmospheric conditions at any specific location 0°C and standard atmospheric conditions 20°C and 1 kg/cm² and relative humidity 36% 15°C and 1 kg/cm² Atmospheric conditions at any specific location ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The material commonly used for air craft gas turbine is Stainless steel High alloy steel Duralumin Timken, Haste alloys Stainless steel High alloy steel Duralumin Timken, Haste alloys ANSWER DOWNLOAD EXAMIANS APP
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