Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as Ratio of heat actually used in producing steam to the heat liberated in the furnace Ratio of the heat liberated in the furnace to the heat actually used in producing steam None of these Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of heat actually used in producing steam to the heat liberated in the furnace Ratio of the heat liberated in the furnace to the heat actually used in producing steam None of these Ratio of the mass of steam produced to the mass of total water supplied in a given time ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be 0.67 1.67 0.4 0.56 0.67 1.67 0.4 0.56 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of whirl at outlet for an axial discharge turbine is Zero None of these Maximum Minimum Zero None of these Maximum Minimum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of the plant __________ with the mechanical draught. Decreases Remains constant None of these Increases Decreases Remains constant None of these Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The nozzle efficiency is the ratio of Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades None of these Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades None of these Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle. None of these Increases Decreases Remain same None of these Increases Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS