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The three designs of strainers used in hot water heating systems are basket, in-line, and wye.

The water in a boiler is heated, turns to steam, and leaves the boiler through the ___.

The ___ of fuel oil is the temperature at which fuel oil gives off vapor that flashes when exposed to an open flame.

Run period is the period after ignition trials but before the operating set point is reached while the main burner is firing.

Steam allowed to enter the Bourdon tube of a pressure gauge can result in a false reading and/or cause damage from warping.

Hot water heating systems transfer heat by circulating heated water to and from a building space.

During a boiler inspection, the main steam stop valve is ___.

A boiler is an open metal container in which water is heated to produce steam or heated water.

During a boiler inspection, the main steam stop valve is ___.

Steam allowed to enter the Bourdon tube of a pressure gauge can result in a false reading and/or cause damage from warping.