Compressors, Gas Turbines and Jet Engines After-cooler is used to Cool the air Decrease the delivery temperature for ease in handling Cause moisture and oil vapour to drop out Reduce volume Cool the air Decrease the delivery temperature for ease in handling Cause moisture and oil vapour to drop out Reduce volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When air is to be compressed at a high pressure, then it is advantageous to use None of these Single stage compression Multistage compression without intercooling Multistage compression with intercooling None of these Single stage compression Multistage compression without intercooling Multistage compression with intercooling ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor without clearance volume Is not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio Decreases with increase in compression ratio Is not dependent upon compression ratio May increase/decrease depending on compressor capacity Increases with increase in compression ratio Decreases with increase in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor Decreases with decrease in compression ratio Increases with increase in compression ratio Decreases with increase in compression ratio Increases with decrease in compression ratio Decreases with decrease in compression ratio Increases with increase in compression ratio Decreases with increase in compression ratio Increases with decrease in compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Clearance volume in actual reciprocating compressors is essential To provide cushioning effect To accommodate Valves in the cylinder head To attain high volumetric efficiency To provide cushioning effect and also to avoid mechanical bang of piston with cylinder head To provide cushioning effect To accommodate Valves in the cylinder head To attain high volumetric efficiency To provide cushioning effect and also to avoid mechanical bang of piston with cylinder head ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Power to drive compressor to isothermal h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. Power to drive compressor to isothermal h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. ANSWER DOWNLOAD EXAMIANS APP
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