Compressors, Gas Turbines and Jet Engines More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than 14.7 kg/cm² 10 kg/cm² 6 kg/cm² 2 kg/cm² 14.7 kg/cm² 10 kg/cm² 6 kg/cm² 2 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which one of the following is the effect of blade shape on performance of a centrifugal compressor? Forward curved blades has higher efficiency Backward curved blades lead to stable performance Forward curved blades produce lower pressure ratio Backward curved blades has poor efficiency Forward curved blades has higher efficiency Backward curved blades lead to stable performance Forward curved blades produce lower pressure ratio Backward curved blades has poor efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The capacity of a compressor is expressed in m³/min kg/m² kg/m³ m³/kg m³/min kg/m² kg/m³ m³/kg ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compression ratio for the compressor is always _________ unity. None of these More than Equal to Less than None of these More than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity U < Vo V = Uo Vi = Vo Vt > Vo U < Vo V = Uo Vi = Vo Vt > Vo ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in multistage expansion gas turbine results in High thermal efficiency Decrease of heat loss in exhaust Reduction in compressor work Maximum work output High thermal efficiency Decrease of heat loss in exhaust Reduction in compressor work Maximum work output ANSWER DOWNLOAD EXAMIANS APP
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