Compressors, Gas Turbines and Jet Engines Gas turbines use following type of air compressor Centrifugal type Reciprocating type Lobe type Axial flow type Centrifugal type Reciprocating type Lobe type Axial flow type ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Decrease of thermal efficiency Increase of work ratio Decrease of work ratio Both (A) and (B) above Decrease of thermal efficiency Increase of work ratio Decrease of work ratio Both (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the wrong statement about advantages of multistage compression Mechanical balance is better Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Air can be cooled perfectly in between Mechanical balance is better Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Air can be cooled perfectly in between ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The thermodynamic efficiency of rotary compressor is based on Isentropic compression Isothermal compression Adiabatic compression Polytropic compression Isentropic compression Isothermal compression Adiabatic compression Polytropic compression 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 Surging is the phenomenon of Motion of air at sonic velocity Air stream blocking the passage Unsteady, periodic and reversed flow Air stream not able to follow the blade contour Motion of air at sonic velocity Air stream blocking the passage Unsteady, periodic and reversed flow Air stream not able to follow the blade contour ANSWER DOWNLOAD EXAMIANS APP
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