Help???? questions that involve math???

Question

i have to ask a welder questions but i don't know what i should ask and the questions need to involve math.. can u please give me suggestions of questions that i should ask.. can you please give me at least ten questions..

Answer 1

does he weld at a certain angle ?

what units of measurement does he use to measure the length of the metals ?

umm, and idk what else. that's all i got. sorry =/

Answer 2

What is the angle the tungsten is sharpened at?  (TIG welding only)

At what angle should the electrode be presented to the weld pool?

Do separate metals react differently when welded? (flex)

How do you allow for creep of metal as the weld cools?                  Formula you use to figure out what diameter electrode to use?

Same question except what size filler rod in what conditions.

How do you know how big of a weld bead to run?  

How do you figure out which weld type to use for  XX circumstance?

Does metal get bigger or smaller when welded? How do you allow for that? Different metal different amount of movement?