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___ is a measure of the acid-alkaline balance of a solution using a scale ranging from 0 to 14.

___ is a measure of the acid-alkaline balance of a solution using a scale ranging from 0 to 14.

A relatively new method of testing steam traps is to measure ___ to determine the presence of steam.

___ efficiency is a measure of how efficiently a boiler’s burner burns fuel while accounting for radiation and convection losses.

A boiler operator must be present during an evaporation test and continually monitor the boiler’s water level.

Water in a chilled water system is typically cooled to about ___°F in the chiller.

___ combustion is combustion that occurs when all fuel is not burned.

___ efficiency is a measure of how efficiently a boiler’s burner burns fuel while accounting for radiation and convection losses.

The purpose of the National Electrical Code® (NEC®) is the practical safeguarding of persons and property from hazards arising from the use of electricity.

A draft system is a boiler system that regulates the ___.