Compressors, Gas Turbines and Jet Engines The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is All of these Clearance volume and leakages Pressure drop across the valves Superheating in compressor All of these Clearance volume and leakages Pressure drop across the valves Superheating in compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum delivery pressure is a rotary air compressor is of the order of 25 kg/cm² 10 kg/cm² 6 kg/cm² 16 kg/cm² 25 kg/cm² 10 kg/cm² 6 kg/cm² 16 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the wrong statement about advantages of multistage compression Mechanical balance is better Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Air can be cooled perfectly in between Mechanical balance is better Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Air can be cooled perfectly in between ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the net work obtained from the gas turbine plant to the turbine work is known as Compression ratio Pressure ratio None of these Work ratio Compression ratio Pressure ratio None of these Work ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to 20°C and 1 kg/cm² N.T.P. conditions 0°C and 1 kg/cm² Intake temperature and pressure conditions 20°C and 1 kg/cm² N.T.P. conditions 0°C and 1 kg/cm² Intake temperature and pressure conditions 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) 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 D₁/D₂ = p₁ p₂ ANSWER DOWNLOAD EXAMIANS APP
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