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1 vote
To adjust the lower tension on an oscillating-hook type machine, you would turn a screw on the

A. bobbin case.
B. race hook.
C. upper tension assembly.
D. needle holder.

2 Answers

7 votes
The answer is C. upper tension assembly

hope this helps
User Mohamed Farrag
by
9.3k points
3 votes
c a upper tension assembly


User Alexander Shutau
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8.0k points