7. (a) Why should a blacksmith forge be added to the welding shop equipment if one is obtainable?
(b) What two important tasks is a forge used for in the welding shop?
8. (a) It is essential that several pails of water be located throughout the shop; why should this be necessary?
(b) Mention a few instances where water is required in the welding shop.
9. Explain fully why great care should be exercised in ventilating a shop where commercial welding is being done.
10. (a) Describe one simple method of constructing a flux box.
(b) What advantages has this type of container?
LECTURE NUMBER EIGHT
Subject—Repairs
1. What is the best method of locating a leak in either the oxygen or acetylene lines?
2. If a leak were found in a ground seat, how could it be stopped if the nut on the coupling had been screwed up as far as possible?