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, draf