Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency, even when running at high speed, can be approached by using Both (A) and (B) above Multistage compression Fully insulating the cylinder Cold water spray Both (A) and (B) above Multistage compression Fully insulating the cylinder Cold water spray ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called Compressor efficiency Isothermal efficiency Mechanical efficiency Volumetric efficiency Compressor efficiency Isothermal efficiency Mechanical efficiency Volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency is The ratio of stroke volume to clearance volume The ratio of the air actually delivered to the amount of piston displacement Index of compressor performance Reciprocal of compression ratio The ratio of stroke volume to clearance volume The ratio of the air actually delivered to the amount of piston displacement Index of compressor performance Reciprocal of compression ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in a gas turbine Increases the thermal efficiency Increases the compressor work Decreases the thermal efficiency Increases the turbine work Increases the thermal efficiency Increases the compressor work Decreases the thermal efficiency Increases the turbine work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For perfect intercooling in a two stage compressor p₁ = p3 p₁ = p₂ p3 p₁/p₃ = p₂/p₁ p₂/p₁ = p₃/p₂ p₁ = p3 p₁ = p₂ p3 p₁/p₃ = p₂/p₁ p₂/p₁ = p₃/p₂ ANSWER DOWNLOAD EXAMIANS APP
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