Compressors, Gas Turbines and Jet Engines In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to 0°C and 1 kg/cm² 20°C and 1 kg/cm² Intake temperature and pressure conditions N.T.P. conditions 0°C and 1 kg/cm² 20°C and 1 kg/cm² Intake temperature and pressure conditions N.T.P. conditions ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is Decreased discharge temperature All of these Lower power consumption per unit of air delivered Higher volumetric efficiency Decreased discharge temperature All of these Lower power consumption per unit of air delivered Higher volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will Increase Decrease Remain unaffected Other factors control it Increase Decrease Remain unaffected Other factors control it ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressed air may be used All of the listed here In starting and supercharging of I.C. engines For operating pneumatic drills In gas turbine plants All of the listed here In starting and supercharging of I.C. engines For operating pneumatic drills In gas turbine plants ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of High friction losses Increasing gas temperature High specific volume Paucity of O2 High friction losses Increasing gas temperature High specific volume Paucity of O2 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 Compressed air before entering the combustion chamber is heated Exhaust gases drive the compressor Bled gas from turbine is heated and readmitted for complete expansion Heated Compressed air before entering the combustion chamber is heated Exhaust gases drive the compressor Bled gas from turbine is heated and readmitted for complete expansion ANSWER DOWNLOAD EXAMIANS APP
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