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 Safety valve Water level indicator Pressure gauge Fusible plug Safety valve Water level indicator Pressure gauge Fusible plug ANSWER DOWNLOAD EXAMIANS APP
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 steam leaves the nozzle at a Low pressure and a low velocity Low pressure and a high velocity High pressure and a low velocity High pressure and a high velocity Low pressure and a low velocity Low pressure and a high velocity High pressure and a low velocity High pressure and a high velocity 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 Lower/higher depending on steam flow Lower value Higher value Same value Lower/higher depending on steam flow Lower value Higher value Same value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum discharge through a chimney occurs when the height of chimney is Equal to the height of the hot gas column producing draught Infinitely long Outside temperature is very low Around 200 meters Equal to the height of the hot gas column producing draught Infinitely long Outside temperature is very low Around 200 meters ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has Less heating surface Heating surface depends on other parameters More heating surface Equal heating surface Less heating surface Heating surface depends on other parameters More heating surface Equal heating surface ANSWER DOWNLOAD EXAMIANS APP
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