___ is the removal of refrigerant in any condition from a system and the storage of the refrigerant in an external container without testing or processing it in any way.

The relieving pressure of a relief valve on a low pressure hot water boiler cannot exceed ___ psi or the MAWP designated on the boiler.

New ___ should be used when replacing a broken gauge glass.

Hot water heating systems require less water than steam to transfer the same amount of heat.

New ___ should be used when replacing a broken gauge glass.

Hot water heating systems require less water than steam to transfer the same amount of heat.

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.