A(n) ___ is a heat exchanger that removes heat from a high-pressure refrigerant vapor.

Sodium sulfite is an oxygen scavenger that is commonly used to treat boiler water.

A handhole is a hole in a boiler shell that provides access for a person during maintenance and repair operations.

Accident reports only include the name of the injured person and type of injury.

One-pipe systems include direct-return and reverse-return systems.

Accident reports only include the name of the injured person and type of injury.

A ___ pump draws fuel oil from a fuel oil tank and delivers it to a burner at a controlled pressure.

A tankless boiler has an added heat exchanger to remove the required additional heat from the gases of combustion in order to allow the water vapor to condense.

A ___ pump draws fuel oil from a fuel oil tank and delivers it to a burner at a controlled pressure.

___ are located on the blowdown line used to release water from the bottom of a boiler.