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In a refrigeration system, the specific volume of the refrigerant is used in determining the size of the required compressor.

A forced-circulation hot water heating system is vented to the atmosphere.

Expansion bends are used to route steam lines around obstacles.

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

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

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.

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