Boiler Exam Practice Tests 2023/2024 with Complete Solutions

removes sludge and sediment from the mud drum - ANSWER-The bottom blowdown on a boiler ___. outside diameter - ANSWER-Boiler tubes are sized using the ___. tin - ANSWER-A boiler fusible plug is brass or bronze with a core of ___. hairline cracks in the refractory - ANSWER-Spalling in a boiler refers to ___. 34.5 - ANSWER-Boiler horsepower is the evaporation of ___ lb of water/hr from and at a feedwater temperature of 212°F. steam temperature - ANSWER-A siphon installed between the boiler and the pressure gauge protects the Bourdon tube from___. 10 to 11.5 - ANSWER-The pH of the boiler water should be ___. steam leaving the boiler - ANSWER-The boiler superheater raises the temperature of the ___. feedwater - ANSWER-An economizer is used to preheat ___. oily waste rags - ANSWER-Fires caused by spontaneous combustion would probably start in the ___. dirty strainers - ANSWER-A high suction reading on the fuel oil pressure gauge indicates ___. try cock - ANSWER-The ___ is a secondary means of determining boiler water level. pyrometer - ANSWER-A(n) ___ is used to measure furnace temperature. 1 ½ - ANSWER-The range of a boiler pressure gauge must not be less than ___ times the safety valve setting. prevent formation of scale - ANSWER-Boiler feedwater is chemically treated to ___. deadweight tester - ANSWER-Pressure gauges are calibrated with a(n) ___. inside tube surface - ANSWER-In a firetube boiler, soot settles on the ___.