Question

question 30
4 pts
what does the r represent for the following designation
2gr
rolled
restrictor plate
question 31
8 pts
what is the term used for the application of heat after welding?
pre heat
post weld heat treatment

Explanation:

Question 30

In welding or related designations, "2GR" (a common welding position or joint designation context) – the "R" here is associated with "Rolled" (considering standard welding/joint notation where R can denote rolled material or rolled position - related aspects, and "Restrictor Plate" is less likely in this typical designation context).

The term for applying heat after welding is "Post Weld Heat Treatment". "Pre Heat" is heat applied before welding, so the correct term is Post Weld Heat Treatment.

Answer:

A. Rolled

Question 31