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Technical Measurements Flashcards

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

Read the first 7 Technical Measurements flashcards as text

  1. What is the minimum net clear opening area for an emergency escape and rescue opening located above grade floor level?

    Answer: 5.7 square feet

    IRC R310.2.1 requires 5.7 square feet net clear opening, except 5.0 square feet at grade floor or below-grade openings.

  2. A casement window has a net clear opening of 22 inches wide by 36 inches high. Does it meet the IRC egress area requirement for a second-floor bedroom?

    Answer: No, it provides only 5.5 square feet

    22 × 36 = 792 square inches, or 5.5 square feet, which is below the 5.7 square foot minimum.

  3. What is the maximum height from the finished floor to the bottom of the clear opening of an emergency escape window?

    Answer: 44 inches

    IRC R310.2.2 limits sill height to 44 inches above the floor.

  4. A window well serving a basement egress window must provide what minimum horizontal area?

    Answer: 9 square feet

    IRC R310.4.1 requires at least 9 square feet with a minimum 36-inch horizontal projection and width.

  5. A window well permanently requires a ladder or steps once its vertical depth exceeds what dimension?

    Answer: 44 inches

    IRC R310.4.2 requires a ladder or steps when the well depth exceeds 44 inches.

  6. An operable window in a dwelling has a sill 20 inches above the finished floor and the opening is 8 feet above the exterior grade. What does the IRC require?

    Answer: Window opening control or fall protection limiting openings to pass less than a 4-inch sphere

    IRC R312.2 requires fall protection when the sill is less than 24 inches above the floor and the opening is more than 72 inches above grade.

  7. Habitable rooms in a dwelling must have a minimum ceiling height of what dimension under the IRC?

    Answer: 7 feet

    IRC R305.1 requires habitable spaces, hallways, and bathrooms to have at least 7 feet of ceiling height.