Steam Boilers, Engines, Nozzles and Turbines The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle) Increases Decreases Remains constant None of these Increases Decreases Remains constant None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of flue tube in a Cornish boiler is _________ that of the shell. Three-fifth One-third Two-fifth One-fourth Three-fifth One-third Two-fifth One-fourth ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The safety valve on boiler drum compared to safety valve on superheater is set at Higher value Lower value Lower/higher depending on steam flow Same value Higher value Lower value Lower/higher depending on steam flow Same value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The mechanical draught _________ with the amount of smoke. None of these Does not effect Decreases Increases None of these Does not effect Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Calorific value of coal is of the order of 5000-8000 kcal/ kg 2000-4000 kcal/ kg 800-1200 kcal/ kg 200-400 kcal/ kg 5000-8000 kcal/ kg 2000-4000 kcal/ kg 800-1200 kcal/ kg 200-400 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) sin²α cos²α cot²α tan²α sin²α cos²α cot²α tan²α ANSWER DOWNLOAD EXAMIANS APP
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