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 Induced draught Balanced draught Natural draught Forced draught Induced draught Balanced draught Natural draught Forced draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The discharge is __________ at critical pressure. Maximum Zero Minimum None of these Maximum Zero Minimum None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The factor of evaporation for all boilers is always Greater than unity None of these Less than unity Equal to unity Greater than unity None of these Less than unity Equal to unity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The average operating pressure of Benson boiler is 200 bar 100 bar 150 bar 250 bar 200 bar 100 bar 150 bar 250 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of superheated tubes in a locomotive boiler is 130 mm 13 mm 31 mm 230 mm 130 mm 13 mm 31 mm 230 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is To prepare heat balance sheet for the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler All of these To prepare heat balance sheet for the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler All of these ANSWER DOWNLOAD EXAMIANS APP
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