An outside air thermostat measures the temperature of outside air, which is used to ___.

A(n) ___ burner is a fuel oil burner that uses air, steam, or fuel oil pressure to atomize fuel oil for maximum combustion efficiency.

When the water level in a boiler drops, the feedwater regulator starts the feedwater pump.

Boiler water tests and water treatment activities are recorded in a safety data sheet similar to a boiler room log.

Boiler systems are commonly depicted using drawings, diagrams, and symbols.

Boiler systems are commonly depicted using drawings, diagrams, and symbols.

Properly burned fuel always results in carbon particles, soot, or excessive smoke.

The water column whistle valve is ___ during a hydrostatic test.

Steam boilers are classified as high pressure if steam pressure exceeds ___ psi.

Properly burned fuel always results in carbon particles, soot, or excessive smoke.