Which of the wrenches listed practically eliminates the possibility of its slipping off while tightening a nut or bolt?
Official USCG Answer & Rule Citation
Correct Answer: Option B — Box end wrench
In USCG Marine Engineering General Subjects, for engine room systems involving 'Which of the wrenches listed practically eliminates the possibility of its slipping off while tightening a nut or bolt', the standard operating requirement is: 'Box end wrench'.
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