AWS Welding Symbols & Blueprint Reading 3 — Questions and Answers
Question 1: In a welding symbol, what does the number placed to the right of the fillet weld symbol represent?
- Length of the weld (Correct answer)
- Leg size of the fillet
- Root opening
- Number of passes
Correct answer: Length of the weld
The number to the right of the fillet weld symbol indicates the length of the weld in the same unit as the drawing dimensions.
Question 2: What does a dashed reference line beneath the solid reference line indicate in some older AWS symbol conventions?
- Other-side weld (Correct answer)
- Inspection required
- Double-sided weld
- Alternate weld process
Correct answer: Other-side weld
In older AWS standards, a dashed reference line below the solid line indicated the other-side member; modern practice places symbols above or below the reference line for arrow-side and other-side respectively.
Question 3: A plug weld symbol shows the number '60' inside it. What does this value represent?
- Diameter of the plug hole (Correct answer)
- Depth of the plug fill
- Angle of countersink
- Number of plugs required
Correct answer: Diameter of the plug hole
The number inside a plug or slot weld symbol indicates the diameter of the hole to be filled.
Question 4: Which view in a multiview drawing shows the object as seen from the right side?
- Right-side view (Correct answer)
- Auxiliary view
- Section view
- Detail view
Correct answer: Right-side view
The right-side view (right elevation) depicts the object as seen from the right, and in third-angle projection it is placed to the right of the front view.
Question 5: What symbol is used on a weld symbol to indicate a flush (flat) weld contour?
- A straight horizontal line above or below the weld symbol (Correct answer)
- A convex arc
- A concave arc
- A circle
Correct answer: A straight horizontal line above or below the weld symbol
A flat straight line placed on the weld symbol indicates the weld face is to be finished flush with the base metal surface.
Question 6: On a welding blueprint, what does the abbreviation 'CJP' stand for?
- Complete Joint Penetration (Correct answer)
- Controlled Joint Procedure
- Continuous Joint Profile
- Certified Joint Process
Correct answer: Complete Joint Penetration
CJP stands for Complete Joint Penetration, meaning the weld metal must extend through the full thickness of the joint.
Question 7: When a welding symbol has dimensions on both sides of the reference line, what does this indicate?
- Welds are required on both the arrow side and the other side (Correct answer)
- The weld has two different process requirements
- Preheat and postheat temperatures are specified
- The joint requires two different filler metals
Correct answer: Welds are required on both the arrow side and the other side
Symbols and dimensions above and below the reference line indicate weld requirements for both the arrow-side and other-side of the joint.
AWS Welding Symbols & Blueprint Reading 3
In a welding symbol, what does the number placed to the right of the fillet weld symbol represent?