Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.75 0.85 0.99 0.9 0.75 0.85 0.99 0.9 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in High thermal efficiency Reduction in compressor work Decrease of heat loss in exhaust Maximum work output High thermal efficiency Reduction in compressor work Decrease of heat loss in exhaust Maximum work output ANSWER DOWNLOAD EXAMIANS APP
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, one isobaric and two constant volumes One adiabatic, two isobaric, and one constant volume Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric One adiabatic, one isobaric and two constant volumes One adiabatic, two isobaric, and one constant volume Two adiabatic, one isobaric and one constant volume Two adiabatic and two isobaric ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The clearance volume of the air compressor is kept minimum because It allows maximum compression to be achieved It results in minimum work It greatly affects volumetric efficiency It permits isothermal compression It allows maximum compression to be achieved It results in minimum work It greatly affects volumetric efficiency It permits isothermal compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as Volumetric efficiency Mechanical efficiency Isothermal efficiency Compressor efficiency Volumetric efficiency Mechanical efficiency Isothermal efficiency Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When air is to be compressed at a high pressure, then it is advantageous to use None of these Multistage compression with intercooling Single stage compression Multistage compression without intercooling None of these Multistage compression with intercooling Single stage compression Multistage compression without intercooling ANSWER DOWNLOAD EXAMIANS APP
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