Steam Boilers, Engines, Nozzles and Turbines Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value (1- moisture content) 1 – moisture content 1 + moisture content (1 + moisture content) (1- moisture content) 1 – moisture content 1 + moisture content (1 + moisture content) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines With increase in load, radiant superheater has Flat characteristic Rising characteristic Linear characteristic Drooping characteristic Flat characteristic Rising characteristic Linear characteristic Drooping characteristic ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as Efficiency of the chimney Efficiency of the boiler Efficiency of the fan Power of the boiler Efficiency of the chimney Efficiency of the boiler Efficiency of the fan Power of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The water tubes in a simple vertical boiler are Horizontal None of the listed here Inclined Vertical Horizontal None of the listed here Inclined Vertical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In water wall furnace, the heat is transferred to the water walls by Radiation and conduction Convection Radiation Conduction Radiation and conduction Convection Radiation Conduction ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler stays are used to Prevent flat surfaces under pressure from tearing apart Provide support for boiler Take care of failure in shear Take care of failure in compression Prevent flat surfaces under pressure from tearing apart Provide support for boiler Take care of failure in shear Take care of failure in compression ANSWER DOWNLOAD EXAMIANS APP