NHIE Mechanical Practice Exam 2025 – The Comprehensive All-in-One Guide to Master Your Certification!

Question: 1 / 400

What is the primary requirement for backup dampers and outdoor termination of kitchen vents?

They must be made of metal

They must be adjustable

They must terminate outside

The primary requirement for backup dampers and outdoor termination of kitchen vents is that they must terminate outside. This is essential to ensure that exhaust gases from cooking do not accumulate within the building, which could pose health risks due to smoke, odors, and potentially harmful substances. By terminating outside, the venting system allows for proper ventilation, facilitating the safe expulsion of air and contributing to the overall indoor air quality.

While the materials used, adjustability, and installation orientation can all play roles in the effectiveness and compliance of venting systems, the overriding concern is always ensuring that kitchen exhaust is directed out of the building. This prevents any unwanted recirculation of exhaust air and effectively manages ventilation needs.

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They must be installed vertically

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