Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - (1/r) ɣ-1/ɣ 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The closed cycle in gas turbines In never used Provides lesser flexibility Provides greater flexibility Is used when gas is to be burnt In never used Provides lesser flexibility Provides greater flexibility Is used when gas is to be burnt ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single acting reciprocating air compressor, without clearance, the compression of air may be Any one of these Isothermal Isentropic Polytropic Any one of these Isothermal Isentropic Polytropic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Fighter bombers use following type of engine Turbojet Ramjet Rocket Turbo-propeller Turbojet Ramjet Rocket Turbo-propeller ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor capacity is defined as the Volume of air delivered by the compressor None of these Volume of air sucked by the compressor during its suction stroke Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions Volume of air delivered by the compressor None of these Volume of air sucked by the compressor during its suction stroke Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Propulsion efficiency of the following order is obtained in practice 0.6 0.5 0.34 0.72 0.6 0.5 0.34 0.72 ANSWER DOWNLOAD EXAMIANS APP