Compressors, Gas Turbines and Jet Engines In a reciprocating air compressor, the compression work per kg of air Increases as clearance volume decreases Is independent of clearance volume Decreases as clearance volume increases Increases as clearance volume increases Increases as clearance volume decreases Is independent of clearance volume Decreases as clearance volume increases Increases as clearance volume increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Isothermal compression Polytropic compression None of the listed here Isentropic compression Isothermal compression Polytropic compression None of the listed here Isentropic compression 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 = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = p₁. p₃ p₂ = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ p₂ = Pa p₃/p₁ p₂ = p₁. p₃ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the false statement Exhaust losses in gas turbine are high due to large mass flow rate Gas turbine is a self starting unit Overall efficiency of gas turbine plant is lower than that of a reciprocating engine Gas turbine does not require huge quantity of water like steam plant Exhaust losses in gas turbine are high due to large mass flow rate Gas turbine is a self starting unit Overall efficiency of gas turbine plant is lower than that of a reciprocating engine Gas turbine does not require huge quantity of water like steam plant ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which is false statement about air receivers? These increase compressor efficiency These knock out some oil and moisture These are used to dampen pulsations These act as reservoir to take care of sudden demands These increase compressor efficiency These knock out some oil and moisture These are used to dampen pulsations These act as reservoir to take care of sudden demands ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling. More than Less than None of these Equal to More than Less than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
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