Exam 25: Testing and Inspection of Welds

____ is/are nonmetallic materials trapped in the weld metal, between weld beads, or between the weld and the base metal.

Arc strikes will always appear when an acid ____________________ is used.

Explain how ultrasound can be used for weld inspection.

​When using hydrochloric acid in an etch test, the welds are immersed in the reagent ____.

The two methods used in product quality control are ____ testing.

What causes crater cracks and how can they be prevented?

​What problem can be caused by improper joint fitup or not enough welding current?

____________________ is the most frequently used nondestructive testing method.

​The acceptance criteria for all inspections are based on______________.

____ result(s) when gas that was dissolved in the molten weld pool forms bubbles that are trapped as the metal cools to become solid.

Explain the causes for lamellar tears and how they can be prevented.

Transverse shearing strength is obtained by ____.

In a fatigue test, the results are reported as ____.

A ____ is an interruption in the typical structure of the weld, whereas a ____ is a flaw which renders the part unable to meet minimum acceptance standards.

Shearing strength is measured in ____.

​What is the most frequently used nondestructive test?

​When evaluating a weld, it is important to note _____________________.

When using hydrochloric acid in an etch test, the proportion of concentrated hydrochloric acid to water is ____.

____________________ may result from sharp notches between weld beads or between the weld bead and the base metal that trap materials so that they cannot float out.

Explain how eddy current inspection works.