Latent heat is heat identified by a change of state and temperature change of a substance.

Checking the gauge glass is the quickest way to determine water level in a boiler.

In a ___ system, a boiler is used to produce the steam required for building processes.

A(n) ___ gauge is a pressure gauge that indicates more pressure than is actually present.

The amount of solids in water affects the ability of the water to conduct electricity.

The water column of a boiler should be blown down each shift.

The amount of solids in water affects the ability of the water to conduct electricity.

A modulating cam is a mechanical device used to regulate the flow of fuel oil to a burner for controlling the firing rate.

When taking over a shift, preliminary safety checks allow the boiler operator to identify any possible problems.

The ___ is the temperature at which fuel oil will burn continuously when exposed to an open flame.