Compressors, Gas Turbines and Jet Engines The efficiency and work ratio of a gas turbine plant can be increased by Reheating the air after partial expansion in the turbine Injecting water in/around combustion chamber Adding heat exchanger All of these Reheating the air after partial expansion in the turbine Injecting water in/around combustion chamber Adding heat exchanger All of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Fighter bombers use following type of engine Ramjet Rocket Turbojet Turbo-propeller Ramjet Rocket Turbojet Turbo-propeller ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by p₂ = Pa p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ P₂ = Pa × p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For slow speed large capacity compressor, following type of valve will be best suited Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Disc or feather type Poppet valve Any of the above Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Disc or feather type Poppet valve Any of the above ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of air compressors is of the order of 70 - 90% 20 - 30% 60 - 70% 40 - 50% 70 - 90% 20 - 30% 60 - 70% 40 - 50% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure of air at the beginning of the compression stroke is ___ the atmospheric pressure. None of the listed here Equal to Less than More than None of the listed here Equal to Less than More than ANSWER DOWNLOAD EXAMIANS APP
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