Compressors, Gas Turbines and Jet Engines Compression efficiency is compared against Isentropic compression Isothermal compression Adiabatic compression Ideal compression Isentropic compression Isothermal compression Adiabatic compression Ideal compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor without clearance volume Decreases with increase in compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity Is not dependent upon compression ratio Decreases with increase in compression ratio Increases with increase in compression ratio May increase/decrease depending on compressor capacity Is not dependent upon compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines 1 m of air at atmospheric condition weighs approximately 0.5 kg 1.0 kg 1.3 kg 2.2 kg 0.5 kg 1.0 kg 1.3 kg 2.2 kg 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? Backward curved blades lead to stable performance Forward curved blades produce lower pressure ratio Forward curved blades has higher efficiency Backward curved blades has poor efficiency Backward curved blades lead to stable performance Forward curved blades produce lower pressure ratio Forward curved blades has higher efficiency Backward curved blades has poor efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Low freezing point Ease of atomisation Both (A) and (C) above High calorific value Low freezing point Ease of atomisation Both (A) and (C) above High calorific value ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of work done per cycle to the swept volume in case of compressor is called Compression ratio Compression index Mean effective pressure Compressor efficiency Compression ratio Compression index Mean effective pressure Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
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