Compressors, Gas Turbines and Jet Engines Volumetric efficiency is Reciprocal of compression ratio The ratio of the air actually delivered to the amount of piston displacement Index of compressor performance The ratio of stroke volume to clearance volume Reciprocal of compression ratio The ratio of the air actually delivered to the amount of piston displacement Index of compressor performance The ratio of stroke volume to clearance volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines It is not possible to use closed gas turbine cycle in aeronautical engines because It is bulky It is inefficient It requires cooling water for its operation None of these It is bulky It is inefficient It requires cooling water for its operation None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressed air may be used In starting and supercharging of I.C. engines For operating pneumatic drills All of the listed here In gas turbine plants In starting and supercharging of I.C. engines For operating pneumatic drills All of the listed here In gas turbine plants ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow) (W₁ + W₂)/W₂ W₁/(W₁ + W₂) (W₁ + W₂)/W₁ W₂/(W₁ + W₂) (W₁ + W₂)/W₂ W₁/(W₁ + W₂) (W₁ + W₂)/W₁ W₂/(W₁ + W₂) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which one of the following is the effect of blade shape on performance of a centrifugal compressor? Backward curved blades lead to stable performance Backward curved blades has poor efficiency Forward curved blades produce lower pressure ratio Forward curved blades has higher efficiency Backward curved blades lead to stable performance Backward curved blades has poor efficiency Forward curved blades produce lower pressure ratio Forward curved blades has higher efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure and temperature conditions of air at the suction of compressor are Pressure slightly less than atmospheric and temperature slightly more than atmospheric Slightly less than atmospheric Atmospheric Slightly more than atmospheric Pressure slightly less than atmospheric and temperature slightly more than atmospheric Slightly less than atmospheric Atmospheric Slightly more than atmospheric ANSWER DOWNLOAD EXAMIANS APP
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