Steam Boilers, Engines, Nozzles and Turbines Fusible plug for boilers is made of fusible metal containing tin, lead, and Bismuth Aluminium Nickel Copper Bismuth Aluminium Nickel Copper ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades. 20 to 30% 30 to 40% 10 to 15% 15 to 20% 20 to 30% 30 to 40% 10 to 15% 15 to 20% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water at pressure of 4 kg/cm² and 160°C temperature when exposed to atmosphere will Boil Remain as it was Flash i.e. get converted into steam Cool down Boil Remain as it was Flash i.e. get converted into steam Cool down ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared to fire tube boiler. Less Equal None of these More Less Equal None of these More 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 Air-preheater Injector Economizer Superheater Air-preheater Injector Economizer Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value 1 – moisture content 1 + moisture content (1 + moisture content) (1- moisture content) 1 – moisture content 1 + moisture content (1 + moisture content) (1- moisture content) ANSWER DOWNLOAD EXAMIANS APP