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Codes, Standards & Safety Flashcards

7 cards from real CKD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Codes, Standards & Safety flashcards as text

  1. Under the IRC, a kitchen range hood that exhausts more than how many CFM generally requires a makeup air system?

    Answer: 400 CFM

    IRC M1503.6 requires makeup air for exhaust hoods capable of exhausting more than 400 CFM.

  2. Where must a residential kitchen exhaust hood duct terminate according to the IRC?

    Answer: Outdoors

    Kitchen exhaust must discharge to the outdoors, never into attics, crawl spaces, or other interior areas.

  3. What is the minimum intermittent exhaust rate the IRC requires for a kitchen?

    Answer: 100 CFM

    IRC Table M1505.4.3 sets 100 CFM intermittent for kitchen local exhaust.

  4. Which duct material is appropriate for a residential range hood duct?

    Answer: Smooth-interior galvanized steel

    Range hood ducts should be smooth-interior metal such as galvanized steel, stainless steel, or copper.

  5. A client wants a gas cooktop installed directly beneath an operable window; what is the NKBA recommendation?

    Answer: Do not place a cooking surface below an operable window

    NKBA advises against cooking surfaces under operable windows due to drafts, burns from reaching over flames, and flammable window treatments.

  6. When a fuel-fired appliance is added to a home, which alarm does the IRC require in the dwelling?

    Answer: Carbon monoxide alarm

    IRC R315 requires CO alarms in dwellings with fuel-fired appliances or attached garages.

  7. What does a ventilation hood's 'capture area' recommendation from NKBA emphasize?

    Answer: The hood should be at least as wide as the cooking surface

    A hood at least as wide as the cooking surface captures rising smoke and grease more effectively.

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Sources & references

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  1. nkba.org — Eligibility, fees, renewal, retake fee, test dates, exam information · verified Oct 2026