Q289
When the presmatic compass is transported from one station to another the object vane is folded on the glass cover in order to . . . . . . . .
A.
Avoid the positive damage to the vane
B.
Avoid the undue wear of the pivot
AnswerC.
Conserve the magnetism of the needle
D.
Protect the glass cover from breakage
Answer: Option B
Solution
Answer: Option B
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