Steam Boilers, Engines, Nozzles and Turbines The device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called Water level indicator Pressure gauge Safety valve Fusible plug Water level indicator Pressure gauge Safety valve Fusible plug 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 Equal to unity Less than unity Greater than unity None of these Equal to unity Less than unity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cochran boiler is a Vertical water tube boiler Horizontal fire tube boiler Vertical fire tube boiler Horizontal water tube boiler Vertical water tube boiler Horizontal fire tube boiler Vertical fire tube boiler Horizontal water tube boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Calorific value of coal is of the order of 5000-8000 kcal/ kg 800-1200 kcal/ kg 200-400 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg 800-1200 kcal/ kg 200-400 kcal/ kg 2000-4000 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as Superheater Injector Economizer Air-preheater Superheater Injector Economizer Air-preheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The steam temperature with increase in load in case of a boiler fitted with radiation superheater First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases Remain unaffected Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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