Compressors, Gas Turbines and Jet Engines Mining industry usually employs following motive power Compressed air Petrol engine C. electric motor Diesel engine Compressed air Petrol engine C. electric motor Diesel engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of 0.045833333333333 0.042361111111111 0.16736111111111 0.084027777777778 0.045833333333333 0.042361111111111 0.16736111111111 0.084027777777778 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 The closed cycle in gas turbines Provides greater flexibility In never used 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 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Choose the correct statement Gas turbine is capable of rapid start up and loading Gas turbines have high standby losses and require lot of maintenance Gas turbines has flat efficiency at part loads Gas turbine requires lot of cooling water Gas turbine is capable of rapid start up and loading Gas turbines have high standby losses and require lot of maintenance Gas turbines has flat efficiency at part loads Gas turbine requires lot of cooling water ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine for the combustion of its fuel Uses surrounding air Carries its own oxygen Does not require oxygen Uses compressed atmospheric air Uses surrounding air Carries its own oxygen Does not require oxygen Uses compressed atmospheric air ANSWER DOWNLOAD EXAMIANS APP
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