Carpenter Red Seal Exam Prep · Question
In roof framing, what is the purpose of a 'collar tie'?
Collar ties are horizontal members connecting opposing rafters, typically at the upper portion of the roof, designed to resist outward thrust (spread) of the ra
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Question: In roof framing, what is the purpose of a 'collar tie'?
Answer options:
- To prevent the roof from lifting in high winds
- To provide a nailing surface for ceiling finishes ✅ To resist rafter spread at or above the midpoint of the rafters
- To support the ridge board from below
Correct answer: To resist rafter spread at or above the midpoint of the rafters
Explanation: Collar ties are horizontal members connecting opposing rafters, typically at the upper portion of the roof, designed to resist outward thrust (spread) of the rafters.
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- When interpreting a foundation plan, a dashed line with 'P. WALL' typically represents which of the following?
- A site plan shows contour lines with an interval of 0.5 m. If two adjacent contour lines are labelled 124.0 m
- According to the National Building Code of Canada (NBC) 2020, what is the primary consideration for the requir
- Two offset stakes are driven at 2.0 m from the proposed edge of a concrete slab. The first stake is marked 'Cu
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