Visual Testing

Question 1

What is a discontinuity?

Answer 1

A disruption to the norm.

Question 2

A linear discontinuity is a discontinuity which:

Answer 2

has the length greater than 3 times its width

Question 3

What is is the most critical discontinuity?

Answer 3

Crack

Question 4

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

Answer 4

hot crack

Question 5

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

Answer 5

False

Question 6

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

Answer 6

True

Question 7

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

Answer 7

underbead (intermediate) passes

Question 8

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

Answer 8

True

Question 9

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

Answer 9

side, root

Question 10

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

Answer 10

suckback or heat shrink

Question 11

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

Answer 11

true

Question 12

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

Answer 12

True