In a feedwater system, the condensate return tank collects condensate returned from heating units for use in the boiler.

The amount of natural draft produced increases with the height of a stack.

An authorized employee is responsible for developing and implementing an emergency plan.

The amount of natural draft produced increases with the height of a stack.

A globe valve should never be used as a main steam stop valve.

A(n) ___ is a small tank for boiler blowdown water to flow through, where city water is added to the boiler water to reduce the discharge water temperature.

Surface impurities increase the surface tension in a blowdown line by creating a film which prevents ___ bubbles from breaking through the surface of the water.

An authorized employee is responsible for developing and implementing an emergency plan.

Up to ___% annual leak rate is allowed for industrial and commercial refrigeration equipment before repair is required.

Feedwater chemicals are mixed in the ___.