UMC Code Quiz | Third Quarter 2025

The remaining space surrounding a chimney liner, gas vent, special gas vent, or plastic piping installed within a masonry, metal or factory-built chimney shall not be used to supply combustion air except for _____ where installed in accordance with the manufacturer’s installation instructions.

when approved

direct-vent appliances

those specifically prohibited

those included

None

The One Permanent Opening Method requires the equipment have a clearance of at least _____ inch(es) from the sides and back.

1

3

5

8

None

Combustion air is not required for __________.

natural draft appliances

gas heating appliances

fuel-burning equipment

direct-vent appliances

None

Time's up

Last modified: July 1, 2025

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UMC Code Quiz | Third Quarter 2025

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