Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from A source of high temperature air A source at 0° C A source of low temperature air The atmosphere A source of high temperature air A source at 0° C A source of low temperature air The atmosphere ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the net work obtained from the gas turbine plant to the turbine work is known as Work ratio Pressure ratio None of these Compression ratio Work ratio Pressure ratio None of these Compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Both (A) and (C) above Ease of atomisation Low freezing point High calorific value Both (A) and (C) above Ease of atomisation Low freezing point High calorific value ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The net work input required for compressor with increase in clearance volume Increases/decreases depending on compressor capacity Decreases Remains same Increases Increases/decreases depending on compressor capacity Decreases Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In turbo fan engine, the jet velocity as compared to turbojet engine is Same More Less May be less or more depending upon speed Same More Less May be less or more depending upon speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Same at all altitudes 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 ANSWER DOWNLOAD EXAMIANS APP
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