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Welding Week 4 > Visual Testing > Flashcards

Flashcards in Visual Testing Deck (12)
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1

What is a discontinuity?

A disruption to the norm.

2

A linear discontinuity is a discontinuity which:

has the length greater than 3 times its width

3

What is is the most critical discontinuity?

Crack

4

A type of discontinuity occurs as the metal solidifies is called:

hot crack

5

T or F. A transverse crack travels perpendicular to the weld direction.

False

6

Crater cracks occur at the starting point of the weld. T or F?

True

7

What type of crack can occur or propagate many hours after the completion of the weld?

underbead (intermediate) passes

8

T or F. Incomplete penetration occurs in the root of the weld.

True

9

Lack of fusion happens along the ____, lack of penetration happens at the _____

side, root

10

______ or ____ draws metal up due to the lack of filler.

suckback or heat shrink

11

T or F. A transverse crack occurs 90 degrees to the direction of the weld.

true

12

T or F. A stress riser can result in a crack.

True