TM 9-243USING A PLUMB BOB - ContinuedNOTEThe following task is not the only use of aplumb bob.NOTEPost hole must be dug and an assistant isrequired before starting the task.6Hang string and plumb bob so they extend over endof ruler and the plumb bob is just above the groundsurface.5Place a ruler (5) on the top of the post (6) so that itextends 2 inches beyond an edge.11-4
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