Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Lower at low speed Higher at high speed Higher at high altitudes Same at all altitudes Lower at low speed Higher at high speed Higher at high altitudes Same at all altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation 0.5% 5% 0.1% 1.0% 0.5% 5% 0.1% 1.0% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Reduction of speed of incoming air and conversion of part of it into pressure energy Increasing speed of incoming air Lost work Compression of inlet air Reduction of speed of incoming air and conversion of part of it into pressure energy Increasing speed of incoming air Lost work Compression of inlet air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The clearance volume of the air compressor is kept minimum because It results in minimum work It permits isothermal compression It allows maximum compression to be achieved It greatly affects volumetric efficiency It results in minimum work It permits isothermal compression It allows maximum compression to be achieved It greatly affects volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an None of these Either (A) or (B) Engine Electric motor None of these Either (A) or (B) Engine Electric motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In multistage compressor, the isothermal compression is achieved by By running compressor at very slow speed Employing inter-cooler By constantly cooling the cylinder By insulating the cylinder By running compressor at very slow speed Employing inter-cooler By constantly cooling the cylinder By insulating the cylinder ANSWER DOWNLOAD EXAMIANS APP
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