A ___ valve protects a fuel oil pump from excessive pressure by discharging fuel oil through the return line to the fuel oil tank.

Accidents that occur must be reported regardless of the nature.

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 ___.

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.