Steam Boilers, Engines, Nozzles and Turbines Blow off cock in a boiler is used to Increase the temperature of saturated steam without raising its pressure Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Increase the temperature of saturated steam without raising its pressure Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine Babcock and Wilcox boiler Lancashire boiler Benson boiler Locomotive boiler Babcock and Wilcox boiler Lancashire boiler Benson boiler Locomotive boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor) pa = pm × K pa = pm + K pa = pm/K pa = K/pm pa = pm × K pa = pm + K pa = pm/K pa = K/pm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Sulphur content of fuels is very important to the plant operators because it Has high heating value Promotes complete combustion Has highly corrosive effect Retards electric precipitation Has high heating value Promotes complete combustion Has highly corrosive effect Retards electric precipitation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed Before the superheater None of these Before the economiser Between the economiser and chimney Before the superheater None of these Before the economiser Between the economiser and chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The expansion of steam in a nozzle follows Rankine cycle Stirling cycle Joule cycle Carnot cycle Rankine cycle Stirling cycle Joule cycle Carnot cycle ANSWER DOWNLOAD EXAMIANS APP
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