Compressors, Gas Turbines and Jet Engines The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio Increases Decreases First decreases and then increases First increases and then decreases Increases Decreases First decreases and then increases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A turboprop is preferred to turbojet because It can fly at supersonic speeds It can fly at high elevations It has high power for take off It has high propulsive efficiency at high speeds It can fly at supersonic speeds It can fly at high elevations It has high power for take off It has high propulsive efficiency at high speeds ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Increasing speed of incoming air Reduction of speed of incoming air and conversion of part of it into pressure energy Compression of inlet air Lost work Increasing speed of incoming air Reduction of speed of incoming air and conversion of part of it into pressure energy Compression of inlet air Lost work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Standard air is the air at ___ and relative humidity of 36 percent. 0.1 bar and 20°C 0.1 bar and 40°C 1 bar and 20°C 1 bar and 40°C 0.1 bar and 20°C 0.1 bar and 40°C 1 bar and 20°C 1 bar and 40°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermodynamic efficiency of rotary compressor is based on Isothermal compression Isentropic compression Adiabatic compression Polytropic compression Isothermal compression Isentropic compression Adiabatic compression Polytropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the wrong statement about advantages of multistage compression More loss of air due to leakage past the cylinder Mechanical balance is better Air can be cooled perfectly in between Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Mechanical balance is better Air can be cooled perfectly in between Better lubrication is possible advantages of multistage ANSWER DOWNLOAD EXAMIANS APP
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