If the original crankshaft diameter range is 3.499 to 3.500 inches and material is removed by 0.005 inches, what is the new diameter range?

If the original crankshaft diameter range is 3.499 to 3.500 inches and material is removed by 0.005 inches, what is the new diameter range?

• A. 3.489 to 3.490 inches
• B. 3.500 to 3.501 inches
• C. 3.494 to 3.495 inches
• D. 3.495 to 3.496 inches

Answer: (C)

When material is removed from a dimension, you subtract that amount from both ends of the size range. Subtracting 0.005 inches from the original limits 3.499 and 3.500 yields 3.499 − 0.005 = 3.494 and 3.500 − 0.005 = 3.495. So the new diameter range is 3.494 to 3.495 inches. The other options would either show a larger size (adding material) or use an incorrect subtraction, which doesn’t reflect removing material.

When material is removed from a dimension, you subtract that amount from both ends of the size range. Subtracting 0.005 inches from the original limits 3.499 and 3.500 yields 3.499 − 0.005 = 3.494 and 3.500 − 0.005 = 3.495. So the new diameter range is 3.494 to 3.495 inches. The other options would either show a larger size (adding material) or use an incorrect subtraction, which doesn’t reflect removing material.