Compressors, Gas Turbines and Jet Engines The maximum delivery pressure in a rotary air compressor is 50 bar 30 bar 20 bar 10 bar 50 bar 30 bar 20 bar 10 bar ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in a gas turbine Increases the thermal efficiency Increases the compressor work Decreases the thermal efficiency Increases the turbine work Increases the thermal efficiency Increases the compressor work Decreases the thermal efficiency Increases the turbine work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be Backward curved Forward curved Radial None of the listed here Backward curved Forward curved Radial None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Compressed air Petrol engine Diesel engine C. electric motor Compressed air Petrol engine Diesel engine C. electric motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to N.T.P. conditions Intake temperature and pressure conditions 0°C and 1 kg/cm² 20°C and 1 kg/cm² N.T.P. conditions Intake temperature and pressure conditions 0°C and 1 kg/cm² 20°C and 1 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means No flow of air Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio No flow of air Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio Fixed mass flow rate regardless of pressure ratio ANSWER DOWNLOAD EXAMIANS APP