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A deaerator is a boiler water pre-treatment accessory that is used to remove calcium and magnesium to reduce hardness.

In a float thermostatic trap, the ball float opens and closes a discharge valve depending on the amount of ___ in the chamber.

A burner should always be firing for periods shorter than periods when it is off to maintain a consistent furnace temperature and improve efficiency.

Steam at a pressure of 0.0 psig (14.7 psia) has a temperature of ___°F.

Steam at a pressure of 0.0 psig (14.7 psia) has a temperature of ___°F.

A hot water boiler relief valve is rated in ___ relieved per hour.

There are many designs of heat exchangers, but the common element is a relatively thin barrier separating the cooling or heating fluid from the process fluid.

According to the ASME Code, a try lever test on a safety valve should be performed every ___ the boiler is in operation and after any period of inactivity.

There are many designs of heat exchangers, but the common element is a relatively thin barrier separating the cooling or heating fluid from the process fluid.

Dry layup is recommended for boilers that will be out of service for an extended period.