Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Decrease of work ratio Both (A) and (B) above Increase of work ratio Decrease of thermal efficiency Decrease of work ratio Both (A) and (B) above Increase of work ratio Decrease of thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed cycle gas turbine consists of a Cooling chamber Heating chamber All of these Compressor Cooling chamber Heating chamber All of these Compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the Adiabatic temperature drop in the stage Total temperature drop in the stage Total temperature drop Total adiabatic temperature drop Adiabatic temperature drop in the stage Total temperature drop in the stage Total temperature drop Total adiabatic temperature drop ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To save fuel To increase the output To reduce the exit temperature To increase the efficiency To save fuel To increase the output To reduce the exit temperature To increase the efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency of a compressor decreases with ________ in compression ratio. Decrease Increase Does not change Remain same Decrease Increase Does not change Remain same ANSWER DOWNLOAD EXAMIANS APP
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