Blueprint Reading & Interpretation 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 Blueprint Reading & Interpretation flashcards as text
On a welding symbol, what does a filled (darkened) triangle symbol represent?
Answer: Fillet weld
A filled or solid right triangle symbol on the reference line represents a fillet weld, the most common weld type in structural work.
What is indicated when a weld symbol appears BELOW the reference line on a welding symbol?
Answer: Weld on the arrow side of the joint
A weld symbol placed below the reference line indicates the weld is on the arrow side — the side of the joint to which the arrow points.
What does the term 'scale' on a blueprint refer to?
Answer: The ratio of the drawn size to the actual size of the object
Scale is the ratio between the size of the object as drawn and its actual size, such as 1:10 meaning one drawn unit equals ten real units.
In welding blueprints, what does the abbreviation 'EL' typically refer to?
Answer: Elevation (height above a reference datum)
EL typically stands for Elevation, indicating the height of a feature measured above a reference datum or base level.
What is the function of a 'match line' on a blueprint?
Answer: Indicates where a drawing continues on another sheet
A match line indicates where a large drawing is split across multiple sheets, allowing the viewer to align and continue reading the drawing.
On a pipe welding isometric drawing, what does the symbol '×' on a pipe line typically represent?
Answer: A butt weld joint
An 'X' crossing symbol on a pipe isometric line typically represents a butt weld joint location in the piping system.
When a blueprint dimension shows '6.000 ± 0.005', what is the maximum allowable size?
Answer: 6.005
The maximum allowable size is the nominal dimension plus the tolerance: 6.000 + 0.005 = 6.005 inches.