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The grinding wheel used to provide the best surface finish is

1. A 36L 5V
2. A 54L 5V
3. A 60L 5V
4. A 80L 5V

Correct answer: A 80L 5V

Solution

The 80L 5V grinding wheel has a finer grit size, which allows for a smoother finish on the workpiece compared to the coarser options, making it ideal for achieving a high-quality surface finish.

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