Compressors, Gas Turbines and Jet Engines The closed cycle in gas turbines Is used when gas is to be burnt Provides lesser flexibility Provides greater flexibility In never used Is used when gas is to be burnt Provides lesser flexibility Provides greater flexibility In never used 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
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler work is known as Polytropic reaction Pressure coefficient Slip factor Work coefficient Polytropic reaction Pressure coefficient Slip factor Work coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed cycle gas turbine gives ________ efficiency as compared to an open cycle gas turbine. None of these Same Lower Higher None of these Same Lower Higher ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For perfect intercooling in a two stage compressor p₂/p₁ = p₃/p₂ p₁ = p₂ p3 p₁/p₃ = p₂/p₁ p₁ = p3 p₂/p₁ = p₃/p₂ p₁ = p₂ p3 p₁/p₃ = p₂/p₁ p₁ = p3 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from The atmosphere A source of low temperature air A source of high temperature air A source at 0° C The atmosphere A source of low temperature air A source of high temperature air A source at 0° C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS