Two common types of steam siphons are the ____ siphons.

On large boilers, the main steam stop valve can be high above the floor.

A pressure control is located at the highest part of the steam side of a boiler.

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.

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

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

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