Which information cannot be provided by a weld symbol?

Which information cannot be provided by a weld symbol?

• A. Joint preparation and geometry.
• B. Weld size and length.
• C. Bolt hole locations.
• D. Weld penetration and fusion.

Answer: (C)

Weld symbols convey how the weld itself should be made on the joint: the type of weld, its size and length, where it applies on the joint, and details about the groove, root, reinforcement, and finish. They can also indicate joint preparation through groove shapes and angles, and they can express penetration and fusion through those weld details. Bolt hole locations, on the other hand, are part of the mechanical layout of the components and how they are fastened together, not how the weld is performed. That’s why bolt hole positions aren’t shown or specified by a weld symbol. The other items—joint preparation and geometry, weld size and length, and weld penetration and fusion—are all information that can be conveyed by the weld symbol, making bolt hole locations the information that cannot be provided by it.

Weld symbols convey how the weld itself should be made on the joint: the type of weld, its size and length, where it applies on the joint, and details about the groove, root, reinforcement, and finish. They can also indicate joint preparation through groove shapes and angles, and they can express penetration and fusion through those weld details. Bolt hole locations, on the other hand, are part of the mechanical layout of the components and how they are fastened together, not how the weld is performed. That’s why bolt hole positions aren’t shown or specified by a weld symbol. The other items—joint preparation and geometry, weld size and length, and weld penetration and fusion—are all information that can be conveyed by the weld symbol, making bolt hole locations the information that cannot be provided by it.