NOCTI Carpentry Practice Exam 2025 – The All-in-One Guide to Master Your Certification!

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What is a common material used for making chalk lines?

Flour

Dust

Chalk powder

Chalk powder is a common material used for making chalk lines because it provides a visible line that can easily be applied to various surfaces such as wood, drywall, or concrete. When the chalk line is snapped, the powder leaves a straight and highly visible mark that is helpful for aligning and measuring during carpentry and construction projects.

Chalk powder is preferred due to its ease of use and the clarity it provides. Unlike other materials, chalk powder can be easily removed or swept away after use without leaving permanent marks. The other options, while they may have specific uses in woodworking or carpentry, do not provide the same type of visible, temporary marking ability that chalk powder does, making it the ideal choice for this application.

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Sawdust

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