BORING - Practice Mode

1) What are the standard diameters of tool maker's button?

2mm, 4mm, 6mm 8mm, 10mm, 12mm 14mm, 16mm, 18mm 20mm, 22mm, 24mm

Correct Answer: 8mm, 10mm, 12mm

2) Which thread is more suitable to hold the tool maker button in position?

4BA thread 5BA thread 6BA thread 7BA thread

Correct Answer: 4BA thread

3) Which material is used to make the tool maker's button?

Hardened steel Tool steel Cast steel Stainless steel

Correct Answer: Hardened steel

4) What is the maximum size of bore that can be checked with telescopic gauge?

152.4 mm 88.9 mm 53.9 mm 31.7 mm

Correct Answer: 152.4 mm

5) What is the minimum size of bore that can be checked with telescopic gauge?

12.7 mm 13.7 mm 19.00 mm 31.7 mm

Correct Answer: 12.7 mm

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