Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Zero Increased Reduced None of these Zero Increased Reduced None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The stagnation pressure rise in a centrifugal compressor takes place In the impeller only In the inlet guide vanes only In the diffuser only In the diffuser and impeller In the impeller only In the inlet guide vanes only In the diffuser only In the diffuser and impeller ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be 64 bar 256 bar 16 bar 1 bar 64 bar 256 bar 16 bar 1 bar ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The capacity of a compressor is expressed in kg/m³ kg/m² m³/kg m³/min kg/m³ kg/m² m³/kg m³/min ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air power of the compressor is also known as Frictional power Indicated power Brake power None of these Frictional power Indicated power Brake power None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Inter-cooling in multistage compressors is done To enable compression in two stages To minimize the work of compression To cool the air at delivery To cool the air during compression To enable compression in two stages To minimize the work of compression To cool the air at delivery To cool the air during compression ANSWER DOWNLOAD EXAMIANS APP
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