LOW PRESSURE LICENSING QUESTIONS CORRECTLY ANSWERED 2024.

LOW PRESSURE LICENSING QUESTIONS CORRECTLY ANSWERED 2024. What is the result of accumulation of large amounts of dissolved minerals such as calcium and magnesium on the boiler heating surface? a) Caustic embrittlement b) Scale c) Pitting d) Corrosion - correct answer b) Scale Feedwater is heated to remove _____ from the boiler water to prevent corrosion. a) Oxygen b) CO2 c) Hydrogen d) Scale - correct answer a) Oxygen _____ draft is air that is pulled through the boiler by a fan. a) Induced b) Natural c) Forced d) Combination - correct answer a) Induced Name the boiler that has water in the tubes and combustion gases around the tubes. a) Firetube b) HRT c) Cast iron sectional d) Watertube - correct answer d) Watertube Boilers must be _____ when testing the low water fuel cutoff. a) Firing b) Off c) Empty d) Full - correct answer a) Firing When taking over a shift, a boiler operator should first check what? a) Coffee pot b) Log book c) Boiler water level d) Time clock - correct answer c) Boiler water level Safety valve connections must be approved by the _____ . a) Chief engineer b) American boiler manufacturer's assoc. (ABMA) c) Fire chief d) American Society of Mechanical Engineer's (ASME) - correct answer d) American Society of Mechanical Engineer's (ASME) Class A fires contain which combustibles? a) Gasoline and grease b) Wood and paper c) Electrical components d) Paint and solvents - correct answer b) Wood and paper The heating value for gas is expressed in _____. a) Gallons b) BTUs c) Therms d) lbs/hr - correct answer c) Therms _____ is the amount of fuel the burner is capable of burning in a given unit of time. c b) Modulating c) Hi-fire d) Low-fire - correct answer a) Firing rate . In a natural circulation hot water heat system, the expansion tank is used to allow for the expansion of _____. a) Air b) Water c) Fuel d) Steam - correct answer a) Air If the bottom try-cock blows steam, the boiler operator must _____. a) Start the spare feed water pump b) Secure the fire c) Add feed water manually d) Do nothing - correct answer b) Secure the fire . Name the device used to test steam trap function by analyzing sound waves emitted. a) Contact thermometer b) Infrared thermometer c) Ultrasonic tester d) Microphone - correct answer c) Ultrasonic tester