The metal bob of a plumb line.
1 Take a string with a weight to act as a plumb bob .
2 The plumb bob will hang at the angle reading for your latitude.
3 It has a plumb bob , surface level, bubble level, steel protractor and ruler all in one.
4 A protractor may be used in the same manner by sighting along the top and using a plumb bob to record the angle.
5 He released the first meter of coated fiber, and using the ring at the end as a plumb bob , lowered it down through the grille.
6 Straight as plumb bobs , my arms were hanging at my sides.
7 His tools included a vernier compass, Gunters chain, plumb bobs , and a set of marking pins.
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Translations for plumb bob