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    				| 1. | The tip of a screw moves through a distance of 2 mm when it isgiven four complete rotations. What is its pitch in mm ? | 
| Answer» Answer: Circular scale has 50 DIVISIONS so ONE rotation=50 divisions THUS 4 rotation=200 division and it is GIVEN that 4 rotation=2mm so 200 division=2mm So least COUNT = 1Division=(2/200)mm=.01mm | |