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