Which tool is often kept on a carpenter’s belt and used to take measurements? a. chop saw b. jointer c. chalk line d. speed square
The correct answer and explanation is:
Correct Answer: d. speed square
A speed square is a versatile measuring and marking tool that is commonly kept on a carpenter’s tool belt. It combines the features of a try square, miter square, protractor, and line scribe all in one. Due to its multifunctional use and compact size, it is an essential tool for carpenters, especially in framing and roofing work.
Made typically from aluminum or steel, the speed square has a right-angle triangle shape with one side (the “fence”) thicker than the others. This allows it to rest securely against the edge of a board, enabling fast and accurate 90-degree and 45-degree angle markings. Carpenters use it to mark square cuts and angled cuts quickly without the need for more complicated measuring tools.
One of the most common uses for a speed square is when cutting lumber. Carpenters can use it to mark straight lines across boards before cutting with a saw. The tool also includes markings that allow for quick measurements and layout of rafters and stair stringers. Its compact size allows it to be easily carried in a tool belt and quickly accessed during work.
In contrast, the other tools listed serve different purposes:
- Chop saw (a): a stationary power tool used to make straight cuts in wood or metal.
- Jointer (b): a woodworking machine used to flatten and square edges of boards.
- Chalk line (c): used to mark long, straight lines on flat surfaces, not for measuring angles or short distances.
Therefore, while these tools are useful in construction, the speed square is the one most often kept on a carpenter’s belt and used for taking measurements and marking angles efficiently.