Compressors, Gas Turbines and Jet Engines The most efficient method of compressing air is to compress it Isentropically Isothermally Isochronically Adiabatically Isentropically Isothermally Isochronically Adiabatically ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The effective power of gas turbines is increased by adding the following in compressor Ammonia and water vapour Carbon dioxide Nitrogen Hydrogen Ammonia and water vapour Carbon dioxide Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
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 r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 1 - (1/r) ɣ-1/ɣ r ɣ-1 1 - (1/r) ɣ/ɣ-1 1 - r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mechanical efficiency of gas turbines as compared to I.C engines is Lower None of these Same Higher Lower None of these Same Higher ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine for the combustion of its fuel Uses surrounding air Does not require oxygen Carries its own oxygen Uses compressed atmospheric air Uses surrounding air Does not require oxygen Carries its own oxygen Uses compressed atmospheric air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The clearance volume of the air compressor is kept minimum because It permits isothermal compression It greatly affects volumetric efficiency It allows maximum compression to be achieved It results in minimum work It permits isothermal compression It greatly affects volumetric efficiency It allows maximum compression to be achieved It results in minimum work ANSWER DOWNLOAD EXAMIANS APP
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