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1. |
For a diameter of 20mm, several pitches given are 1, 1.5, 2 and 2.5mm. Which of the following is coarse pitch? |
A. | 1mm |
B. | 2 and 2.5mm |
C. | 1.5, 2 and 2.5mm |
D. | 2.5mm |
Answer» E. | |