Boiler Operator Licensing Exam Questions and Answers Graded A+

Boiler Operator Licensing Exam Questions and Answers Graded A+ all steam boilers must have 1 or more safety valves before anyone enters the boiler drum, the main steam stop valve, bottom blowdown valves, & feedwater valves should be Locked closed at atmospheric pressure, water begins to boil at approximately 212 degrees F fuels most commonly used in boilers Fuel oil, gas, & coal must be connected to the highest part of the steam side of the boiler Steam pressure gauge with an NOWL in a boiler, the gauge glass is approximately Half full a high surface tension on top of the boiler water can lead to Foaming Bottom blowdown on a boiler removes sludge & sediment from the Mud drum a boiler fusible plug is brass or bronze with a core of Tin a steam pressure gauge is calibrated in Pounds per square inch a secondary means of determining boiler water level Try cocks fires caused by spontaneous combustion are most likely to occur in the Oily waste rag storage a siphon installed between the boiler & the pressure gauge protects the Bourdon tube from Steam boiler feedwater is chemically treated to Prevent formation of scale in a firetube boiler, soot accumulates on the Inside tube surface the pressure applied on the boiler during a hydrostatic test should be 1.5 times the MAWP as fuel oil is heated, its viscosity is Decreased the induced draft fan is located between the boiler & the Chimney the flash point of fuel oil is the minimum temperature at which the fuel will Flash when exposed to an open flame the fire point of fuel oil is the minimum temperature at which the fuel will Burn continually the pour point of fuel oil is the ____ temperature at which fuel oil will ____ Lowest; flow fuel oil with a low flash point is Dangerous to handle the operating range of a steam boiler is controlled by a Pressure control water hammer in steam lines is caused by Condensate in the line