Steam Boilers, Engines, Nozzles and Turbines In recuperative air preheaters, the heat is transferred By direct mixing From heating an intermediate material and then heating the air from this material From a metal wall from one medium to another Heat is transferred by bleeding some gases from furnace By direct mixing From heating an intermediate material and then heating the air from this material From a metal wall from one medium to another Heat is transferred by bleeding some gases from furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler Increases Decreases First increases and then decreases Remain unaffected Increases Decreases First increases and then decreases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is a Stationary fire tube boiler Stationary water tube boiler Mobile fire tube boiler Water tube boiler with natural/forced circulation Stationary fire tube boiler Stationary water tube boiler Mobile fire tube boiler Water tube boiler with natural/forced circulation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will Remain unaffected Improve May improve/worsen depending on size Worsen Remain unaffected Improve May improve/worsen depending on size Worsen ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a boiler, the heat is lost All of these In moisture present in the fuel To dry flue gases To steam formed by combustion of hydrogen per kg of fuel All of these In moisture present in the fuel To dry flue gases To steam formed by combustion of hydrogen per kg of fuel ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A condenser in a steam power plant All of these Reduces back pressure of steam Reduces temperature of exhaust steam Increases expansion ratio of steam All of these Reduces back pressure of steam Reduces temperature of exhaust steam Increases expansion ratio of steam ANSWER DOWNLOAD EXAMIANS APP
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