What is the total tolerance range for the dimension 2.3456 +0.002 -0.003?

• A. 0.005
• B. 0.002
• C. 0.003
• D. 0.001

Answer: (A)

This question tests how to find the total tolerance range when tolerances aren’t symmetric around the nominal size. The largest permissible size is 2.3456 plus the positive tolerance: 2.3456 + 0.002 = 2.3476. The smallest permissible size is 2.3456 minus the negative tolerance: 2.3456 − 0.003 = 2.3426. The distance between these two limits is 2.3476 − 2.3426 = 0.005. So the total tolerance range is 0.005 units.

The other values reflect only one side of the tolerance window or are not capturing the full spread: 0.002 is just the positive tolerance, 0.003 is just the negative tolerance, and 0.001 doesn’t describe the full range.