Steam Boilers, Engines, Nozzles and Turbines A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called None of these Stop valve Blow off cock Superheater None of these Stop valve Blow off cock Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The specific volume of steam with increase in pressure decreases Rapidly first and then slowly Inversely Slowly first and then rapidly Linearly Rapidly first and then slowly Inversely Slowly first and then rapidly Linearly ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum heat loss is a boiler occurs due to Steam formation Moisture in fuel Dry flue gases Unburnt carbon Steam formation Moisture in fuel Dry flue gases Unburnt carbon ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K) T1 /88.25H 176.5H/T1 88.25H/T1 T1 /176.5H T1 /88.25H 176.5H/T1 88.25H/T1 T1 /176.5H ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of Cornish boiler is of the order of 2.53.5 m 23 m 12 m 1.52.5 m 2.53.5 m 23 m 12 m 1.52.5 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of Fouling of heat transfer surfaces Raising of steam temperature High calorific value coal being burnt Higher effectiveness of boiler Fouling of heat transfer surfaces Raising of steam temperature High calorific value coal being burnt Higher effectiveness of boiler ANSWER DOWNLOAD EXAMIANS APP
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