Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called Mechanical efficiency Gross or stage efficiency Nozzle efficiency Blading efficiency Mechanical efficiency Gross or stage efficiency Nozzle efficiency Blading efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in, a Coarran and Scottish marine boiler are Both horizontal and vertical Inclined Horizontal Vertical Both horizontal and vertical Inclined Horizontal Vertical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Curtis turbine is a Pressure compounded turbine Pressure-velocity compounded turbine Velocity compounded turbine Simple reaction turbine Pressure compounded turbine Pressure-velocity compounded turbine Velocity compounded turbine Simple reaction turbine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An air preheater Increases evaporative capacity of the boiler Enables low grade fuel to be burnt Increases the efficiency of the boiler All of these Increases evaporative capacity of the boiler Enables low grade fuel to be burnt Increases the efficiency of the boiler All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as Boiler efficiency Factor of evaporation Equivalent evaporation Power of a boiler Boiler efficiency Factor of evaporation Equivalent evaporation Power of a boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In regenerative air preheaters, the heat is transferred By direct mixing From a metal wall from one medium to another Heat is transferred by bleeding some gas from furnace From heating an intermediate material and then heating the air from this material By direct mixing From a metal wall from one medium to another Heat is transferred by bleeding some gas from furnace From heating an intermediate material and then heating the air from this material ANSWER DOWNLOAD EXAMIANS APP