An automatic nonreturn valve is constructed of a piston in a cylinder with a stem and handwheel.

A(n) ___ is a device worn over the ears to reduce the level of noise reaching the eardrum.

One of the most common types of heat exchangers in industrial applications is a ___ heat exchanger.

All plants maintain boiler room logs for an 8-hour period.

All valves are opened during dry layup to prevent moisture from entering the boiler.

All plants maintain boiler room logs for an 8-hour period.

The American National Standards Institute (ANSI) is a national standards organization that helps identify industrial and public needs for national standards.

An igniter is a device used to set fire to the fuel in a burner.

The American National Standards Institute (ANSI) is a national standards organization that helps identify industrial and public needs for national standards.

A(n) ___ is a container located between an evaporator and a compressor that catches any liquid refrigerant before it reaches the compressor and causes damage.