Compressors, Gas Turbines and Jet Engines In a jet propulsion The propulsive matter is caused to flow around the propelled body None of these The propulsive matter is ejected from within the propelled body Its functioning does not depend upon presence of air The propulsive matter is caused to flow around the propelled body None of these The propulsive matter is ejected from within the propelled body Its functioning does not depend upon presence of air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio in gas turbines is of the order of 0.084027777777778 0.37569444444444 2.5423611111111 0.16736111111111 0.084027777777778 0.37569444444444 2.5423611111111 0.16736111111111 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an None of these Electric motor Engine Either (A) or (B) None of these Electric motor Engine Either (A) or (B) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Decrease of thermal efficiency Increase of work ratio Both (A) and (B) above Decrease of work ratio Decrease of thermal efficiency Increase of work ratio Both (A) and (B) above Decrease of work ratio 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 Bled gas from turbine is heated and readmitted for complete expansion Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated Heated Bled gas from turbine is heated and readmitted for complete expansion Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated Heated 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 Decrease Increase Remain unaffected Other factors control it Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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