Carpenter Red Seal Exam Prep · Question
When setting up an extension ladder, what is the ideal angle of inclination for maximum stability and safety?
The ideal angle for an extension ladder is 75 degrees, often remembered as the '4 to 1' rule (for every 4 units of height, the base is 1 unit away from the wall
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Question: When setting up an extension ladder, what is the ideal angle of inclination for maximum stability and safety?
Answer options:
- Approximately 45 degrees
- Approximately 65 degrees ✅ Approximately 75 degrees
- Approximately 85 degrees
Correct answer: Approximately 75 degrees
Explanation: The ideal angle for an extension ladder is 75 degrees, often remembered as the '4 to 1' rule (for every 4 units of height, the base is 1 unit away from the wall). This angle provides optimal stability.
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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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