Compressors, Gas Turbines and Jet Engines Standard air is the air at ___ and relative humidity of 36 percent. 1 bar and 40°C 1 bar and 20°C 0.1 bar and 40°C 0.1 bar and 20°C 1 bar and 40°C 1 bar and 20°C 0.1 bar and 40°C 0.1 bar and 20°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake Equal to zero Opposite to the direction of motion of blades Depending on the velocity In the direction of motion of blades Equal to zero Opposite to the direction of motion of blades Depending on the velocity In the direction of motion of blades ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Air-fuel ratio in a jet engine will be of the order of 0.62569444444444 0.83402777777778 0.41736111111111 2.5006944444444 0.62569444444444 0.83402777777778 0.41736111111111 2.5006944444444 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter cooling in compressors Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Enables compression in two stages Cools the delivered air Is the standard practice for big compressors Results in saving of power in compressing a given volume to given pressure Enables compression in two stages Cools the delivered air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Work to compress air isothermally to work for actual compression Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. Isothermal h.p. to the BHP of motor Work to compress air isothermally to work for actual compression Power to drive compressor to isothermal h.p. Isothermal h.p. to adiabatic h.p. Isothermal h.p. to the BHP of motor ANSWER DOWNLOAD EXAMIANS APP
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 First decreases and then increases Increases First increases and then decreases Decreases First decreases and then increases Increases First increases and then decreases Decreases ANSWER DOWNLOAD EXAMIANS APP