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Flame failure can cause a furnace explosion from the buildup and ignition of fuel.

Usual protection devices used in a heat exchanger to prevent overpressure from thermal expansion are either a thermal expansion safety relief valve or a rupture disc.

___ combines with oxygen to form sodium sulfate, which accumulates at the bottom of a boiler.

___ is a condition that occurs when large slugs of boiler water are carried into steam lines.

___ combines with oxygen to form sodium sulfate, which accumulates at the bottom of a boiler.

A ___ is a control that functions as the mastermind of a burner control system to control the firing cycle.

A boiler has a lower efficiency when it operates longer without shutdown.

A boiler has a lower efficiency when it operates longer without shutdown.

A ___ is used to record information regarding operation of a boiler during a given period of time.

___ is the process of evacuating (discharging) water and undesirable accumulated material from a boiler.