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A relief valve must be built according to the ___ and must have specifications identified on a data plate.

Improper water treatment is a common cause of boiler failure.

Minimizing the makeup water added to a boiler reduces the water treatment chemicals required.

After performing an electrical hazard analysis, tables in NFPA 70E are used to help determine the correct protective equipment for the expected exposure to the arc flash hazard.

Internal boiler water treatment involves treating water before it enters a boiler.

___ air is air supplied to a burner above the theoretical amount required to burn the fuel to ensure complete combustion.

A titration test is a test used in a water treatment test to indicate the presence of a specific substance.

___ air is air supplied to a burner above the theoretical amount required to burn the fuel to ensure complete combustion.

A titration test is a test used in a water treatment test to indicate the presence of a specific substance.

A ___ is a device used to create resistance in order to regulate the flow of air and the gases of combustion in a boiler.