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

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

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

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.”

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

A feedwater ___ valve should be located as close to the shell of the boiler as practical.

A(n) ___ prevents steam from entering the Bourdon tube of a pressure gauge.

A feedwater ___ valve should be located as close to the shell of the boiler as practical.

The most common steam pressure gauge operates by the movement of a ___.

Hot water boilers have a hot water distribution system instead of a steam system.