General Studies · Manufacturing Processes
In plain indexing, a crank is to be turned by 137 turns. Using Plate No. 2 which contains 21, 23, 27, 29, 31, and 33 hole circles, this can be achieved by:
- 1One full rotation + 7 holes in a 23-hole circle
- 2One full rotation + 7 holes in a 21-hole circle
- 3One full rotation + 9 holes in a 23-hole circle
- 4One full rotation + 9 holes in a 21-hole circle✓
Correct answer
One full rotation + 9 holes in a 21-hole circle
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