Compressors, Gas Turbines and Jet Engines In a centrifugal compressor, an increase in speed at a given pressure ratio causes Increase in efficiency Increase in flow Decrease in flow Increase in flow and decrease in efficiency Increase in efficiency Increase in flow Decrease in flow Increase in flow and decrease in efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Increasing speed of incoming air Compression of inlet air Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Increasing speed of incoming air Compression of inlet air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Standard air is the air at ___ and relative humidity of 36 percent. 0.1 bar and 40°C 0.1 bar and 20°C 1 bar and 20°C 1 bar and 40°C 0.1 bar and 40°C 0.1 bar and 20°C 1 bar and 20°C 1 bar and 40°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its High calorific value Low freezing point Ease of atomisation Both (A) and (C) above High calorific value Low freezing point Ease of atomisation Both (A) and (C) above ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the correct statement Large gas turbines use radial inflow turbines Gas turbines have their blades similar to steam turbine Gas turbines use both air and liquid cooling Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip Large gas turbines use radial inflow turbines Gas turbines have their blades similar to steam turbine Gas turbines use both air and liquid cooling Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The fuel consumption in gas turbines is accounted for by Higher heating value Higher calorific value Lower heating value Heating value Higher heating value Higher calorific value Lower heating value Heating value ANSWER DOWNLOAD EXAMIANS APP
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