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Question

Difficulty: EasyMeasuring and Layout Tools

A carpenter needs to duplicate an existing non-standard angle from a timber roof joint and mark that exact angle onto a new piece of trim. Which layout tool is designed specifically to adjust to, lock, and transfer custom angles?

  1. A
    Try square
  2. Sliding T-bevelAnswer
  3. C
    Chalk line
  4. D
    Plumb bob

Answer

Sliding T-bevel
The sliding T-bevel (also known as a bevel gauge) consists of a handle and an adjustable slotted blade secured by a locking screw. It is designed specifically to be laid against an existing angle, tightened into place, and used to replicate that exact angle onto another workpiece.

Step-by-Step Solution

1
Analyze the job requirement
The task requires copying, locking, and duplicating a non-90-degree, variable angle from one surface to another.
Identifying the required mechanical function helps select the correct specialized shop layout tool.
2
Evaluate layout tool designs
The sliding T-bevel contains a slotted blade attached to a stock with a thumbscrew, enabling it to match and lock at any arbitrary angle.
Standard squares such as try squares and framing squares have fixed right angles and cannot adjust to custom inclinations.

Key Concept

Tool selection for transferring non-standard and variable layout angles.
Estimated Time:40s
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Topics

Measuring and Layout Tools

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