Welding Symbols & Blueprint Reading Flashcards
7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Welding Symbols & Blueprint Reading flashcards as text
What does the number in parentheses to the right of a fillet weld symbol represent when no length is given without parentheses?
Answer: Pitch (center-to-center spacing) of intermittent welds
In intermittent fillet weld notation, the format is length-pitch; the number in parentheses represents the pitch (center-to-center distance) between weld segments.
Which AWS welding symbol element indicates a convex weld face contour?
Answer: A curved arc bowing outward above the weld symbol
A convex contour symbol is an outward-curving arc placed on the weld symbol, specifying the weld face should be built up above the base metal surface.
On a welding blueprint, what does 'TYP' mean when placed near a dimension or weld symbol?
Answer: Typical — the same detail applies to all similar features unless noted
TYP (typical) means the specified dimension or weld requirement applies uniformly to all identical features on the drawing without being individually labeled.
A back weld symbol is placed on a welding symbol. Where is the back weld deposited relative to the groove weld?
Answer: On the opposite side of the joint from the groove weld
A back weld is deposited on the back (other side) of the joint after the groove weld is completed to seal the root.
What is a 'backing' symbol in AWS welding notation used to indicate?
Answer: A separate backing material or strip placed at the root before welding
A backing symbol indicates a backing bar or strip (steel, copper, ceramic) placed at the root of the joint to support the weld pool during the first pass.
When reading a weld map on a fabrication drawing, what does a circled number near a weld joint typically reference?
Answer: A weld detail or joint detail elsewhere on the drawing
Circled numbers on weld maps are detail call-out bubbles that reference an enlarged detail drawing or joint detail cross-section elsewhere in the drawing package.
In AWS A2.4, what does a spot weld symbol with the number '3' to the left and '(25)' to the right indicate?
Answer: 3 spot welds each 25 mm apart (pitch)
For spot welds, the number to the left indicates the quantity of spot welds, and the number in parentheses indicates the pitch (center-to-center spacing).