17.
List 4 methods of creating a vacuum in a container (thermal processing).
a.
.
b.
.
c.
.
d.
.
18.
List 3 kinds of retorts.
a.
.
b.
.
c.
.
19.
Identify the lettered part of the can shown below by placing the number of the
corresponding part beside the letter on the illustration.
1. Key tongue
4. Side seam
7. Can end
10. Can code
2. Bead
5. Double seam
8. Score
3. Body
6. Expansion ring
9. Counter sink
MD0708
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