Compressors, Gas Turbines and Jet Engines A turboprop is preferred to turbojet because 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 It can fly at supersonic speeds It can fly at high elevations It has high power for take off ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio in gas turbines is of the order of 2.5423611111111 0.084027777777778 0.16736111111111 0.37569444444444 2.5423611111111 0.084027777777778 0.16736111111111 0.37569444444444 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂) n- 1/n 1 - k + k (p₁/p₂)1/n 1 + k - k (p₂/p₁) n-1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂) n- 1/n 1 - k + k (p₁/p₂)1/n 1 + k - k (p₂/p₁) n-1/n ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Air-fuel ratio in a jet engine will be of the order of 0.83402777777778 0.41736111111111 2.5006944444444 0.62569444444444 0.83402777777778 0.41736111111111 2.5006944444444 0.62569444444444 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 Increasing gas temperature High specific volume High friction losses Paucity of O2 Increasing gas temperature High specific volume High friction losses Paucity of O2 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called Slip factor Degree of reaction Pressure ratio Pressure coefficient Slip factor Degree of reaction Pressure ratio Pressure coefficient ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS