Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have Low weight and small frontal area Small frontal area and high h.p. High speed and high h.p. High h.p. and low weight Low weight and small frontal area Small frontal area and high h.p. High speed and high h.p. High h.p. and low weight ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of the compressor is defined as the ratio of Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Volume of free air delivery per stroke to the swept volume of the piston Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Volume of free air delivery per stroke to the swept volume of the piston ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in ________ of the piston. Two strokes Four strokes One stroke Three strokes Two strokes Four strokes One stroke Three strokes 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 Four times Three times Two times Six times Four times Three times Two times ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following fuels can be used in turbojet engines? Methyl alcohol Liquid hydrogen Kerosene High speed diesel oil Methyl alcohol Liquid hydrogen Kerosene High speed diesel oil ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work ratio of simple gas turbine cycle depends on Minimum cycle temperature All of these Pressure ratio Maximum cycle temperature Minimum cycle temperature All of these Pressure ratio Maximum cycle temperature ANSWER DOWNLOAD EXAMIANS APP
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