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

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A mechanical-draft gas vent terminating through a sidewall shall not terminate less than which clearance from a door, operable window, or gravity air inlet?

4 feet below or 4 feet horizontally from, or 1 foot above, the opening 1 inch from any opening in all directions 25 feet above finished grade only No clearance is required if the vent is plastic

Correct Answer:

4 feet below or 4 feet horizontally from, or 1 foot above, the opening

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