If combustion is not complete before gases come in contact with a heating surface, the gases will cool and create soot and smoke.

A(n) ___ valve is the valve used to cut a boiler in on-line or take a boiler off-line.

The two types of low water fuel cutoffs normally used on hot water boilers are the ___-type and the probe-type cutoffs.

Accidents that occur must be reported regardless of the nature.

Return steam traps are commonly found in modern boiler plants.

In a high pressure gas burner, the gas mixes with the air on the inside of the ___.

In a high pressure gas burner, the gas mixes with the air on the inside of the ___.

In the area of employer supervision, ___ states, “The employer shall determine, through regular supervision and through inspections conducted on at least an annual basis, that each employee is complying with the safety-related work practices required.”

Ground water is water that is treated for use in a boiler.

Safety valves are tested only by performing a try lever test.