A low water condition is caused by an excessive amount of water in a boiler as indicated by the gauge glass.

The internal mechanism of a low water fuel cutoff should be removed from the bowl at the recommended intervals to check and ___ the float ball.

The ASME Boiler and Pressure Vessel Code allows ___ valve(s) to be placed between a boiler and a safety valve or between a safety valve and the point of discharge.

___ are pollution standards for six priority pollutants set by the Environmental Protection Agency through the Clean Air Act.

A variable-speed drive (VSD) is a motor controller used to vary the frequency of the electrical signal supplied to an AC motor in order to control its rotational speed.

___ states, “The training requirements contained in this section apply to employees who face a risk of electric shock that is not reduced to a safe level by the electrical installation.”

The mercury tube in a pressure control must be inspected at least ___ for mercury vaporization.

A variable-speed drive (VSD) is a motor controller used to vary the frequency of the electrical signal supplied to an AC motor in order to control its rotational speed.

Surge tanks are vented to the atmosphere and commonly lined with an epoxy coating to prevent corrosion.

___ states, “The training requirements contained in this section apply to employees who face a risk of electric shock that is not reduced to a safe level by the electrical installation.”