Free CWI Part B flashcards

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Flashcard · Welding Inspection and Discontinuities

Leg end of a fillet gauge on a convex fillet: what does a good fit look like?

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Leg end of a fillet gauge on a convex fillet: what does a good fit look like?: The blade lies flat on one member and the notch meets the toe on the other with no gap. Too big a blade stands off the toe; too small a blade passes under it.AWS B1.11, Guide for the Visual Examination of Welds, fillet weld gauges
Concave end of a fillet gauge: you see light between the center point and the weld face. What does that mean?: The throat is thinner than that blade. Step down one blade at a time until the point touches the face.AWS B1.11, Guide for the Visual Examination of Welds, fillet weld gauges
Why is a concave fillet checked with the throat end, not the leg end?: Its legs can look full while the throat is thin. The leg end reads it big, so an undersized weld gets accepted.AWS B1.11, Guide for the Visual Examination of Welds, fillet weld gauges
Before you pick a fillet gauge end, what do you check?: The face shape, by eye or with a straight edge. A face that bulges out takes the leg end; a face that dips in takes the throat end.AWS B1.11, Guide for the Visual Examination of Welds, fillet weld gauges
The drawing gives a fillet two different leg sizes. How do you check it?: Leg by leg against the drawing. The shorter-leg rule is for a fillet called out with a single size.AWS CWI Part B Book of Specifications (2017), clause 2.4
A fillet gauges undersize. Besides by how much, what else do you measure?: How long the undersize run is and where it starts, with the rule or caliper. The structural tolerance in clause 2.4 needs both numbers.AWS CWI Part B Book of Specifications (2017), clause 2.4
Measuring undercut with a V-WAC style pointer: the steps?: Zero the pointer on flat base metal beside the undercut, move the tip into the groove, and read the depth.AWS B1.11, Guide for the Visual Examination of Welds, gauges for undercut
Where along a run of undercut do you take the reading?: At its deepest point, found by moving along it. The first spot you touch is rarely the worst.AWS B1.11, Guide for the Visual Examination of Welds, gauges for undercut
How do you size a surface pore with the circles on a V-WAC style gauge?: Find the smallest circle that fully covers the pore. That circle gives its diameter.AWS B1.11, Guide for the Visual Examination of Welds, gauges for porosity
What does the reinforcement step on a V-WAC style gauge read?: How high the weld face stands above the base metal surface next to it.AWS B1.11, Guide for the Visual Examination of Welds, gauges for reinforcement
Hi-lo gauge on a pipe replica: for root misalignment, do you read the inside step or the outside step?: The inside step. Put one finger on the inside surface of each member and read the offset.AWS B1.11, Guide for the Visual Examination of Welds, fit-up and misalignment
Why does an inside step at the root of a pipe joint matter?: It can trap slag and leave part of the root unfused.AWS B1.11, Guide for the Visual Examination of Welds, fit-up and misalignment