Steam Boilers, Engines, Nozzles and Turbines Blow off cock in a boiler is used to 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 Increase the temperature of saturated steam without raising its pressure Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required 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 Increase the temperature of saturated steam without raising its pressure 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 The ratio of heat utilized to produce steam and the heat liberated in furnace is known as Boiler evaporative capacity Boiler effectiveness Factor of evaporation Boiler efficiency Boiler evaporative capacity Boiler effectiveness Factor of evaporation Boiler efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water and sediment in fuel oil can be removed by Suspension Heating the oil in the settling tanks Cooling the oil in the settling tanks Burning the oil Suspension Heating the oil in the settling tanks Cooling the oil in the settling tanks Burning the oil ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The latent heat of steam with increase of pressure Increases Behaves unpredictably Remain same Decreases Increases Behaves unpredictably Remain same Decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The actual vacuum in a condenser is equal to Barometric pressure - actual pressure Gauge pressure + atmospheric pressure Barometric pressure + actual pressure Gauge pressure - atmospheric pressure Barometric pressure - actual pressure Gauge pressure + atmospheric pressure Barometric pressure + actual pressure Gauge pressure - atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The safety valve on boiler drum compared to safety valve on superheater is set at Lower value Lower/higher depending on steam flow Higher value Same value Lower value Lower/higher depending on steam flow Higher value Same value ANSWER DOWNLOAD EXAMIANS APP
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