Question

question 21
which of the following are criteria for selecting the correct welding electrode?
base metal composition
welding position
metal thickness
joint design
question 22
flame cutting can be used to cut metals in all thicknesses.
true
false

Explanation:

For Question 21, the base metal composition affects the chemical - compatibility of the weld, the welding position impacts the flow and deposition of the electrode material, metal thickness determines the amount of filler metal needed and the heat - input requirements, and joint design influences the type of weld and electrode needed. For Question 22, flame cutting has limitations on metal thickness as very thin metals may be damaged by the heat and for very thick metals, the process may be inefficient or not possible.

Answer:

Question 21: base metal composition, welding position, metal thickness, joint design
Question 22: False