Even in full open position, a ___ valve causes steam to change direction through the valve, resulting in a drop in steam pressure.

Corrosion is the accumulation of sludge on boiler heating surfaces.

Heating feedwater removes ___.

Hot water heating systems produce heat more consistently than steam heating systems.

Hot water heating systems produce heat more consistently than steam heating systems.

Steam traps are ___ devices that increase overall system efficiency by removing air and condensate without the loss of steam.

___ -pipe systems are used when different parts of a system require heating and cooling simultaneously.

Makeup water is always added from a city water supply line with a manual makeup water system.

The condensate must be removed from a heat exchanger to allow more steam to enter.

The condensate must be removed from a heat exchanger to allow more steam to enter.