Steam Boilers, Engines, Nozzles and Turbines During polytropic process Work is done All of these Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls Work is done All of these Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of steam at throat of the nozzle is __________ the velocity of sound. Less than More than None of these Equal to Less than More than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of steam in the engine cylinder at the beginning of the stroke is ________ the boiler pressure. None of these Less than Higher than Equal to None of these Less than Higher than Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor is the ratio of the Isentropic heat drop to the heat supplied Total useful heat drop to the total isentropic heat drop None of these Cumulative heat drop to the isentropic heat drop Isentropic heat drop to the heat supplied Total useful heat drop to the total isentropic heat drop None of these Cumulative heat drop to the isentropic heat drop ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines With increase in load, radiant superheater has Flat characteristic Linear characteristic Rising characteristic Drooping characteristic Flat characteristic Linear characteristic Rising characteristic Drooping characteristic ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In reaction turbines, the axial thrust is due to Change in axial velocity Both (A) and (B) None of these Pressure drop across the rotor Change in axial velocity Both (A) and (B) None of these Pressure drop across the rotor ANSWER DOWNLOAD EXAMIANS APP
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