Question

different between level and screw​

Answer 1

Explanation:

Level =A schematic diagram of an engineer's level is shown in. An engineer's level primarily consists of a telescope mounted upon a level bar which is rigidly fastened to the spindle. Inside the tube of the telescope, there are objective and eye piece lens at the either end of the tube. A diaphragm fitted with cross hairs is present near the eye piece end. A focussing screw is attached with the telescope

Screw= to adjust instrument (level) so that the line of sight is horizontal for any orientation of the telescope.

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