Compressors, Gas Turbines and Jet Engines Ramjet engine Is not self operating at zero flight speed Produces a jet consisting of plasma Is self operating at zero flight speed Requires no air for its operation Is not self operating at zero flight speed Produces a jet consisting of plasma Is self operating at zero flight speed Requires no air for its operation ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would None of these Increase Decrease Remain same None of these Increase Decrease Remain same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Aeroplanes employ following type of compressor None of these Radial flow Centrifugal Axial flow None of these Radial flow Centrifugal Axial flow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The net work input required for compressor with increase in clearance volume Remains same Increases Decreases Increases/decreases depending on compressor capacity Remains same Increases Decreases Increases/decreases depending on compressor capacity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of roots blower ________ with the increase in pressure ratio. Does not change None of these Increases Decreases Does not change None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air is delivered ________ in one revolution in case of a three lobbed rotor. Six times Three times Four times Two times Six times Three times Four times Two times ANSWER DOWNLOAD EXAMIANS APP
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