Compressors, Gas Turbines and Jet Engines The ideal efficiency of simple gas turbine cycle depends on All of these Maximum cycle temperature Minimum cycle temperature Pressure ratio All of these Maximum cycle temperature Minimum cycle temperature Pressure ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ramjet engine Requires no air for its operation Is not self operating at zero flight speed Produces a jet consisting of plasma Is self operating at zero flight speed Requires no air for its operation Is not self operating at zero flight speed Produces a jet consisting of plasma Is self operating at zero flight speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure) (p₁ - p₂)/2 p₁/p₂ (p₁ + p₂)/2 p₁ p₂ (p₁ - p₂)/2 p₁/p₂ (p₁ + p₂)/2 p₁ p₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression though most efficient, but is not practicable because Compressor has to run at very slow speed to achieve it It requires very big cylinder It is impossible in practice It does not increase pressure much Compressor has to run at very slow speed to achieve it It requires very big cylinder It is impossible in practice It does not increase pressure much ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency can be attained by running the compressor At average speed At very high speed At zero speed At very slow speed At average speed At very high speed At zero speed At very slow speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will Remain unaffected Other factors control it Increase Decrease Remain unaffected Other factors control it Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
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