(b) How is the “filler-rod” held when making a steel weld?
8. (a) Is it necessary to “V” out on steel the same as on cast iron?
(b) Explain why.
9. (a) Is a steel weld as strong as the original metal if not built up?
(b) Explain why.
10. (a) Is the same provision made for expansion and contraction on steel as on cast iron?
(b) Give reasons for so thinking.
LECTURE NUMBER TEN
Subject—Steel Welding
(Part Two)
11. (a) What is meant by a “crater” in steel welding?
(b) How are they removed from the weld?