NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

A triple-function hydronic aquastat typically combines which three roles?

Gas pressure regulator, oil safety valve, and barometric damper. High-limit safety, operating (low-limit / burner) control, and circulator switching. ASME relief, backflow preventer, and expansion tank. Low-water cutoff, flame scanner, and master fuel trip relay.

Correct Answer:

High-limit safety, operating (low-limit / burner) control, and circulator switching.

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