Boiler license Exam Questions and Correct Answers

Boiler license Exam Questions and Correct Answers The primary purpose of establishing plant safety rules is to: - Answer-protect workers and equipment How are the sections of a cast-iron boiler connected? - Answer-push nipples and bolts Cast-iron boilers are built for what type of draft firing? - Answer-mechanical forced and/or induced What is the maximum pressure of a low pressure steam boiler? - Answer-15 psi What is the maximum temperature and pressure of a low pressure hot water boiler? - Answer-160 psi at 250 degrees F Where do the gases of combustion pass in a water tube boiler? - Answer-around the tubes In a two-pipe direct return hot water heating system, the supply and return lines flow in the same direction. - Answer-False What is the science of heating a cooling with water as the conveying medium called? - Answer-hydronics What must be conducted annually to avoid a catastrophic failure? - Answer-annual inspection How much does a 1 foot column of water weigh if it has a 1 inch square base? - Answer-It weighs .433 lbs. What are the four systems required to operate a steam boiler? - Answer-steam, feedwater, fuel, draft What is the minimum penalty for not posting your license? - Answer-$500.00 What minerals cause scale? - Answer-calcium and magnesium Why should the gauge glass on a steam boiler blown down regularly? - Answer-to clear dirt and sediment from the glass Which valve allows for flow in one direction only? - Answer-check valve What device is used to protect sewer lines from high temperatures and pressures? - Answer-blowdown tank Oxygen causes what? - Answer-pitting What is the purpose of a water column on a steam boiler? - Answer-slow down the movement of the water What chemical can you use to control oxygen in boiler water? - Answer-sodium sulfite What ASME code section are low pressure boilers built to? - Answer-Section IV Care and operation of a low pressure boiler falls under which ASME code section? - Answer-Section VI What number represents neutral on the pH scale? - Answer-7 Describe the function of a safety valve. - Answer-pops open fully at set-point pressure When steam loses its heat, what is it reclaimed as? - Answer-condensate What is the first thing an operator should check when arriving on-site? - Answer-The water level of all boilers To avoid a furnace explosion, the boiler must allow for a: - Answer-purge period How often should the water column and gauge glass be blown down? - Answer-At least once every 24 hours The low pressure black seal license will permit you to operate boilers up to what horsepower? - Answer-unlimited horsepower Steam pressure gauges are calibrated in: - Answer-pounds per square inch (psi) The ASME Code states that the setting on the high limit pressure control on a low pressure steam boiler shall not exceed: - Answer-15 psig By definition, a boiler is an open vessel in which water is turned to steam under pressure by the application of heat. - Answer-False By N.J.A.C. rules, a school with a boiler plant with a total interconnected capacity of 100 BHP would require a properly licensed operator to be present whenever the building was deemed occupied. - Answer-False A boiler operator's log shall be maintained in each plant containing over: - Answer-100 Boiler HP If in good standing, an expired license can be renewed within a period of: - Answer-3 Years The low pressure black seal license will permit you to operate boiler plants of up to: - Answer-No Limit What is the maximum penalty fo