Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake Equal to zero In the direction of motion of blades Opposite to the direction of motion of blades Depending on the velocity Equal to zero In the direction of motion of blades Opposite to the direction of motion of blades Depending on the velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inlet pressure is always ___ the discharge pressure. More than None of the listed here Less than Equal to More than None of the listed here Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air) p₂ = p₁ × p₂ p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The advantage of multistage compression over single stage compression is Higher volumetric efficiency Lower power consumption per unit of air delivered Decreased discharge temperature All of these Higher volumetric efficiency Lower power consumption per unit of air delivered Decreased discharge temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated H.P. and brake H.P. is known as Mechanical efficiency Isothermal efficiency Adiabatic efficiency Volumetric efficiency Mechanical efficiency Isothermal efficiency Adiabatic efficiency Volumetric efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate Increases Remain constant Decreases First decreases and then increases Increases Remain constant Decreases First decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
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