AWS Welding Symbols, Blueprints & Drawings — Questions and Answers
Question 1: What does a triangle symbol on a welding blueprint indicate?
- Spot weld
- Fillet weld (Correct answer)
- Plug weld
- Groove weld
Correct answer: Fillet weld
A triangle in welding symbols typically represents a fillet weld, one of the most common types of welds used.
Question 2: Which line on a welding symbol refers to the side of the joint where the weld should be placed?
- Reference line
- Leader line
- Arrow side (Correct answer)
- Tail
Correct answer: Arrow side
The arrow side of the welding symbol indicates the joint location for the weld as per AWS A2.4.
Question 3: What is the primary purpose of a welding blueprint?
- Calculate costs
- Record heat inputs
- Guide weld layout and specifications (Correct answer)
- Measure arc voltage
Correct answer: Guide weld layout and specifications
A welding blueprint provides specific instructions for weld placement, dimensions, and specifications needed for construction.
Question 4: What does the tail of a welding symbol typically include?
- Length of the weld
- Diameter of filler rod
- Welding process or special instructions (Correct answer)
- Inspection method
Correct answer: Welding process or special instructions
The tail of a welding symbol can include process specifications, references to procedures, or other relevant notes.
Question 5: In a welding symbol, what does a circle at the intersection of the arrow and reference line mean?
- Weld is to be skipped
- Weld is intermittent
- Weld all around (Correct answer)
- No welding required
Correct answer: Weld all around
A circle at the intersection indicates that the weld should be made all around the joint.
Question 6: What does the term 'weld size' refer to on a blueprint?
- The electrode thickness
- The length of welding rod
- The size of weld deposit or leg length (Correct answer)
- Distance between welds
Correct answer: The size of weld deposit or leg length
Weld size refers to the dimensions of the weld, including leg length for fillet welds or depth for groove welds.
AWS Welding Symbols, Blueprints & Drawings
What does a triangle symbol on a welding blueprint indicate?