Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Both (A) and (B) above Increase of work ratio Decrease of work ratio Decrease of thermal efficiency Both (A) and (B) above Increase of work ratio Decrease of work ratio Decrease of thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum combustion pressure in gas turbine as compared to I.C. engine is Same Depends on other factors Less More Same Depends on other factors Less More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as Degree of reaction Pressure coefficient Work factor Slip factor Degree of reaction Pressure coefficient Work factor Slip factor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Compressed air C. electric motor Petrol engine Diesel engine Compressed air C. electric motor Petrol engine Diesel engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D₁ = Dia. of L.P. cylinder, and D₂ = Dia. of H.P. cylinder) D₁/D₂ = p₁/p₂ None of these D₁/D₂ = p₁ p₂ D₁/D₂ = p₂/p₁ D₁/D₂ = p₁/p₂ None of these D₁/D₂ = p₁ p₂ D₁/D₂ = p₂/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated H.P. and brake H.P. is known as Adiabatic efficiency Isothermal efficiency Volumetric efficiency Mechanical efficiency Adiabatic efficiency Isothermal efficiency Volumetric efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS