1. Why do cleaning of surface and edges of metal so important?
a Provide good appearance of the cut material
b. Obey because it was instructed to do so.
c. Dirt and other substance detrimental to weld quality.
d. Very easy to fit-up joint.
Removal of metal scales, old points, rust in metal is easy with the use of:
a. Grinder
b. Scraper
c. Chipping hammer
d Metal sand paper
3. Why air tight fit-up necessary for Tee-joint preparation?
a Dirt or contaminant will not stock inside
b. Avoid gas pockets associated from the unfit fit-up.
C. Rust attacked easily
d. None of the above
4. Beveled joint is considered "critical" in the category of weld. This means that:
a. Weld joint is necessary for radiography
b. Weld joint is for visual
C. Weld joint with no inspection
d All of the above.​