ICC Welding Certification Practice Test 2025 – The Comprehensive Guide to Master Your Certification!

Question: 1 / 400

What does the notation "3-12" in a welding symbol specify?

The length of the weld is 12 inches

The welds are to be spaced 3 inches apart

The welds are to be 3 inches long and spaced 12 inches center to center

The notation "3-12" in a welding symbol indicates that the welds should be 3 inches long and spaced 12 inches apart from center to center. This is a standard way to express the dimensions relating to the length and spacing of welds in technical drawings and welding specifications.

Understanding this notation is essential for ensuring proper weld placement and integrity in construction and fabrication processes. The first number represents the length of each individual weld, while the second number indicates the distance between the centers of adjacent welds.

This helps fabricators and welders understand not just how long each weld should be, but also how they should position these welds relative to each other to achieve the desired strength and performance of the joint.

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12 welds must be placed in this area

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