Steam Boilers, Engines, Nozzles and Turbines During polytropic process Steam may be wet, dry or superheated after expansion All of these Heat transfer takes place across cylinder walls Work is done Steam may be wet, dry or superheated after expansion All of these Heat transfer takes place across cylinder walls Work is done ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the chimney is called Forced steam jet draught Chimney draught Induced steam jet draught None of these Forced steam jet draught Chimney draught Induced steam jet draught None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In locomotive boiler, maximum steam pressure is limited to 1 kg/cm² 18 kg/cm² 10 kg/cm² 5 kg/cm² 1 kg/cm² 18 kg/cm² 10 kg/cm² 5 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine when the degree of reaction is zero, then there is No heat drop in moving blades Maximum heat drop in moving blades No heat drop in fixed blades Maximum heat drop in fixed blades No heat drop in moving blades Maximum heat drop in moving blades No heat drop in fixed blades Maximum heat drop in fixed blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off governing as compared to throttle governing is Less efficient and less economical More efficient and less economical More efficient and more economical Less efficient and more economical Less efficient and less economical More efficient and less economical More efficient and more economical Less efficient and more economical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially dry saturated steam is 0.601 0.582 0.546 0.577 0.601 0.582 0.546 0.577 ANSWER DOWNLOAD EXAMIANS APP
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