Practice Test Geeks(InterNACHI) International Association of Certified Home Inspectors Practice Test
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Fireplaces, Chimneys & Solid Fuel Appliances Flashcards

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

Read the first 7 Fireplaces, Chimneys & Solid Fuel Appliances flashcards as text

  1. What is the minimum height a masonry chimney must extend above a flat roof or a roof with a pitch less than 2:12?

    Answer: 3 feet above the roof penetration point

    Per the 2-3-10 rule, a chimney must extend at least 3 feet above the highest point where it passes through the roof.

  2. Creosote found in a chimney flue is a byproduct of:

    Answer: Incomplete combustion of wood in a fireplace or stove

    Creosote is a flammable, tar-like byproduct of incomplete wood combustion that accumulates inside flue liners and poses a chimney fire risk.

  3. What is the primary purpose of a chimney damper?

    Answer: To seal the flue when the fireplace is not in use

    The damper is a movable plate located in the throat of the fireplace that closes the flue when not in use to prevent heat loss and block outside air infiltration.

  4. According to InterNACHI standards, which component on a chimney directs water away from the junction of the chimney and a sloped roof?

    Answer: Saddle (cricket)

    A saddle or cricket is a peaked structure built behind a wide chimney on a sloped roof to divert water away and prevent pooling and leakage.

  5. What is the most common material used to line a masonry chimney flue in residential construction?

    Answer: Clay tile (terracotta)

    Clay tile flue liners are the most commonly installed liner type in masonry chimneys because they are durable, heat-resistant, and cost-effective.

  6. A chimney cap serves which of the following primary functions?

    Answer: Preventing rain, debris, and animals from entering the flue

    A chimney cap covers the top of the flue opening to keep out rain, leaves, birds, and small animals while still allowing combustion gases to exit.

  7. When inspecting a fireplace firebox, which condition would an InterNACHI inspector flag as a safety deficiency?

    Answer: Cracks in the refractory firebrick panels exceeding 1/8 inch

    Cracks larger than 1/8 inch in firebrick panels can allow combustion gases and heat to escape into the surrounding structure, creating a fire hazard.