Compressors, Gas Turbines and Jet Engines Cylinder clearance in a compressor should be As small as possible About 100% of swept volume About 50% of swept volume As large as possible As small as possible About 100% of swept volume About 50% of swept volume As large as possible 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 = p₁. p₃ p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ p₂ = (p₁ + p₃)/2 p₂ = p₁. p₃ p₂ = Pa p₃/p₁ P₂ = Pa × p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines To avoid moisture troubles, the compressed air main line should Be laid exactly horizontally Rise gradually towards the point of use Drop gradually towards the point of use Be laid vertically Be laid exactly horizontally Rise gradually towards the point of use Drop gradually towards the point of use Be laid vertically ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor capacity is defined as the Volume of air sucked by the compressor during its suction stroke Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions None of these Volume of air delivered by the compressor Volume of air sucked by the compressor during its suction stroke Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions None of these Volume of air delivered by the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine as compared to steam turbine Requires less space for installation Has less efficiency All of these Has compressor and combustion chamber Requires less space for installation Has less efficiency All of these Has compressor and combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of the compressor is defined as the ratio of Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Volume of free air delivery per stroke to the swept volume of the piston Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Volume of free air delivery per stroke to the swept volume of the piston Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor ANSWER DOWNLOAD EXAMIANS APP
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