Steam Boilers, Engines, Nozzles and Turbines The ratio of the clearance volume to the swept volume is called Clearance ratio Cut-off ratio None of these Expansion ratio Clearance ratio Cut-off ratio None of these Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor is the ratio of the Total useful heat drop to the total isentropic heat drop Cumulative heat drop to the isentropic heat drop None of these Isentropic heat drop to the heat supplied Total useful heat drop to the total isentropic heat drop Cumulative heat drop to the isentropic heat drop None of these Isentropic heat drop to the heat supplied ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The chimney draught varies with All of these Climatic conditions Temperature of furnace gases Height of chimney All of these Climatic conditions Temperature of furnace gases Height of chimney ANSWER DOWNLOAD EXAMIANS APP
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 The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as Boiler efficiency Equivalent evaporation Power of a boiler Factor of evaporation Boiler efficiency Equivalent evaporation Power of a boiler Factor of evaporation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure gives the velocity of steam at the throat Equal to the velocity of sound None of these More than the velocity of sound Less than the velocity of sound Equal to the velocity of sound None of these More than the velocity of sound Less than the velocity of sound ANSWER DOWNLOAD EXAMIANS APP
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