Steam Boilers, Engines, Nozzles and Turbines Efficiency of Rankine cycle can be increased by Increasing exhaust pressure Increasing the expansion ratio Decreasing exhausts pressure Decreasing initial steam pressure and temperature Increasing exhaust pressure Increasing the expansion ratio Decreasing exhausts pressure Decreasing initial steam pressure and temperature ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The actual vacuum in a condenser is equal to Gauge pressure - atmospheric pressure Barometric pressure + actual pressure Barometric pressure - actual pressure Gauge pressure + atmospheric pressure Gauge pressure - atmospheric pressure Barometric pressure + actual pressure Barometric pressure - actual pressure Gauge pressure + atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about pulverized fuel firing? High burning rate is possible Fuel burns economically It is the best technique for burning high ash content fuel having low fusion ash Heat release can be easily controlled High burning rate is possible Fuel burns economically It is the best technique for burning high ash content fuel having low fusion ash Heat release can be easily controlled ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure gives the velocity of steam at the throat None of these Less than the velocity of sound Equal to the velocity of sound More than the velocity of sound None of these Less than the velocity of sound Equal to the velocity of sound More than the velocity of sound ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of fire tubes in Cochran boiler is of the order of 8 cm 12 cm 6 cm 2 cm 8 cm 12 cm 6 cm 2 cm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The flow of steam is supersonic In the convergent portion of the nozzle At the throat of the nozzle At the entrance to the nozzle In the divergent portion of the nozzle In the convergent portion of the nozzle At the throat of the nozzle At the entrance to the nozzle In the divergent portion of the nozzle ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS