Boiler License Low Pressure Exam Questions with Correct Answers

Boiler License Low Pressure Exam Questions with Correct Answers A welded repair is allowed on the pressure retaining area of a boiler or pressure vessel - Answer-True An OS&Y valve offers the least resistance to flow - Answer-True What chemical prevents pitting - Answer-Sodium Sulfite A rotary cup burner atomizes fuel - Answer-by means of a spinning cup/high velocity air Retubed or new boilers are cleaned with - Answer-Alkaline Detergent Where does fuel atomize - Answer-At the burner tip Vacuum gauges are calibrated in inches of - Answer-Mercury below Water boilers should have a ph of - Answer-11 What happens if a steam trap continuously blows through? - Answer-Steam vents from the condensate tank What happens when you have a closed oil vent - Answer-Oil spill Safety valves should be tested - Answer-Once a month What is the most important fitting on a boiler? - Answer-Safety valve What protects sewer lines from high temperatures and pressures from blowdowns? - Answer-Blowdown tanks How much horsepower do you need to obtain a black seal (low or high pressure) license? - Answer-OVER 100 horsepower What is the maximum size blowdown line - Answer-2 1/2 inches When do you close a boiler vent - Answer-When steam comes out Where would you place a water temperature indicator - Answer-At the boiler supply A Chief Engineer is not needed in a low pressure plant - Answer-True The position control cannot function without - Answer-Air What fire tube boiler is most effcient - Answer-4 pass What is the first thing you check when entering a boiler room - Answer-the water level How often do you check the low water cut off - Answer-daily The on-off controls of a steam boiler are installed - Answer-In a vertical position What letter stamp represent a low-pressure boiler - Answer-H What is the minimum fine for not properly posting a licence? - Answer-$500.00 Where is the jurisdiction (registration) # on a boiler - Answer-on the front of the boiler How many pounds of steam per hour in a one boiler horsepower? - Answer-34.5 pounds per hour What is the purpose of an expansion tank? - Answer-allows expansion of water What type of boiler is a HRT boiler? - Answer-Fire tube What is the maximum horsepower a low pressure licensed operator can operate up to - Answer-No limit If a license is expired, how long can it be expired before it is null and void? - Answer-3 years Boiler fitting are important for - Answer-Safety only Thermostatic traps remove air and cool condensate - Answer-true Combustion air is controlled by - Answer-Inlet dampers, fan intake vanes and fan speed How are the sections of a cast iron boiler put together - Answer-Push nipples and bolts What is the purpose of a check valve - Answer-prevent reverse flow, allows flow in one direction What is a solenoid valve - Answer-An automatic gas shutoff valve What prevents a furnace explosion? - Answer-The purge cycle Ignition failure would cause activation of the - Answer-Purge cycle What is the most important rule in operating a boiler? - Answer-keep water at proper level What is the capacity of a safety valve measured in? - Answer-Pounds of steam per hour (#of steam/ hr) The main purpose of testing a safety valve is to - Answer-make sure valve operates freely When testing a safety valve by