Carpenter Red Seal Exam Prep · Question
A carpenter is ripping a 2x10 (38 mm x 235 mm) spruce board along its length. Which power saw blade would be the most efficient and safest choice?
For ripping (cutting with the grain), a blade with fewer, larger teeth (like a 20-tooth rip blade) is most efficient as it removes material quickly without exce
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Question: A carpenter is ripping a 2x10 (38 mm x 235 mm) spruce board along its length. Which power saw blade would be the most efficient and safest choice?
Answer options:
- A 24-tooth general-purpose blade
- A 60-tooth carbide-tipped crosscut blade
- A 40-tooth thin-kerf blade ✅ A 20-tooth carbide-tipped rip blade
Correct answer: A 20-tooth carbide-tipped rip blade
Explanation: For ripping (cutting with the grain), a blade with fewer, larger teeth (like a 20-tooth rip blade) is most efficient as it removes material quickly without excessive friction. More teeth are for smoother crosscuts or finer finishes.
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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
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