Compressors, Gas Turbines and Jet Engines An ideal air compressor cycle with clearance on P-V diagram can be represented by following processes One adiabatic, two isobaric, and one constant volume Two adiabatic and two isobaric Two adiabatic, one isobaric and one constant volume One adiabatic, one isobaric and two constant volumes One adiabatic, two isobaric, and one constant volume Two adiabatic and two isobaric Two adiabatic, one isobaric and one constant volume One adiabatic, one isobaric and two constant volumes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Both (A) and (C) above Low freezing point High calorific value Ease of atomisation Both (A) and (C) above Low freezing point High calorific value Ease of atomisation ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Higher at high speed Higher at high altitudes Lower at low speed Same at all altitudes Higher at high speed Higher at high altitudes Lower at low speed Same at all altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will Increase first at slow rate and then fast Increase first at fast rate and then slow Decrease continuously First increase, reach maximum and then decrease Increase first at slow rate and then fast Increase first at fast rate and then slow Decrease continuously First increase, reach maximum and then decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated h.p. to shaft h.p. in known as Isothermal efficiency Compressor efficiency Mechanical efficiency Volumetric efficiency Isothermal efficiency Compressor efficiency Mechanical efficiency Volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Fighter bombers use following type of engine Turbojet Ramjet Turbo-propeller Rocket Turbojet Ramjet Turbo-propeller Rocket ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS