Steam Boilers, Engines, Nozzles and Turbines De-Laval turbines are mostly used For small power purposes and high speeds For small power purposes and low speeds For large power purposes Where low speeds are required For small power purposes and high speeds For small power purposes and low speeds For large power purposes Where low speeds are required ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called Natural draught Forced draught Induced draught Balanced draught Natural draught Forced draught Induced draught Balanced draught 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 Benson boiler Locomotive boiler Babcock and Wilcox boiler Lancashire boiler Benson boiler Locomotive boiler Babcock and Wilcox boiler Lancashire boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Maximum energy loss in a boiler occurs due to Unburnt carbon in ash Ash content Flue gases Incomplete combustion Unburnt carbon in ash Ash content Flue gases Incomplete combustion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as Low pressure turbine Pass out turbine Back pressure turbine Impulse turbine Low pressure turbine Pass out turbine Back pressure turbine Impulse turbine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at 950-1100°C Atmospheric temperature 500-600°C 700-850°C 950-1100°C Atmospheric temperature 500-600°C 700-850°C ANSWER DOWNLOAD EXAMIANS APP
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