boiler exam study guide 2 verified to pass 2023/2024

boiler exam study guide 2The bottom blowdown on a boiler ___. - correct answer removes sludge and sediment from the mud drum Boiler tubes are sized using the ___. - correct answer outside diameter A boiler fusible plug is brass or bronze with a core of ___. - correct answer tin Spalling in a boiler refers to ___. - correct answer hairline cracks in the refractory Boiler horsepower is the evaporation of ___ lb of water/hr from and at a feedwater temperature of 212°F. - correct answer 34.5 A siphon installed between the boiler and the pressure gauge protects the Bourdon tube from___. - correct answer steam temperature The pH of the boiler water should be ___. - correct answer 10 to 11.5 The boiler superheater raises the temperature of the ___. - correct answer steam leaving the boiler An economizer is used to preheat ___. - correct answer feedwater Fires caused by spontaneous combustion would probably start in the ___. - correct answer oily waste rags A high suction reading on the fuel oil pressure gauge indicates ___. - correct answer dirty strainers The ___ is a secondary means of determining boiler water level. - correct answer try cock