Compressors, Gas Turbines and Jet Engines The blades of gas turbine are made of High nickel alloy Stainless steel High alloy steel Carbon steel High nickel alloy Stainless steel High alloy steel Carbon steel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would Increase Remain same None of these Decrease Increase Remain same None of these Decrease ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Phenomenon of choking in compressor means Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio No flow of air Fixed mass flow rate regardless of pressure ratio Increased inclination of chord with air steam Reducing mass flow rate with increase in pressure ratio No flow of air Fixed mass flow rate regardless of pressure ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The capacity of compressor will be highest when its intake temperature is Atmospheric Lowest Anything Highest Atmospheric Lowest Anything Highest ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Heated Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion Exhaust gases drive the compressor Heated Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion Exhaust gases drive the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during Isentropic compression Isothermal compression None of these Polytropic compression Isentropic compression Isothermal compression None of these Polytropic compression ANSWER DOWNLOAD EXAMIANS APP
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