Steam Boilers, Engines, Nozzles and Turbines The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as Feed check valve Feed pump Pressure gauge Injector Feed check valve Feed pump Pressure gauge Injector ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines 100% efficiency of a thermal cycle cannot be achieved because of Leakage Non availability of ideal substance It is not possible to achieve 0°K temperature Frictional losses Leakage Non availability of ideal substance It is not possible to achieve 0°K temperature Frictional losses ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηB × ηN None of the listed here ηS = ηB / ηN ηS = ηN / ηB ηS = ηB × ηN None of the listed here ηS = ηB / ηN ηS = ηN / ηB ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A single acting steam engine produces ___ power than that of double acting steam engine. Four times Double Half Equal Four times Double Half Equal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as 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 Ratio of heat actually used in producing steam to the heat liberated in the furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly 150 kg/h 210 kg/h 280 kg/h 340 kg/h 150 kg/h 210 kg/h 280 kg/h 340 kg/h ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS