If a dimension reads 1.50 ± 0.05, what is the total tolerance?

• A. 0.05
• B. 0.10
• C. 0.15
• D. 0.20

Answer: (B)

The total tolerance is determined by considering the specified tolerance range around the nominal dimension. In this case, the dimension reads 1.50 with a tolerance of ±0.05. This indicates that the dimension can vary 0.05 units above or below the nominal value of 1.50.

To find the total tolerance, you would add the positive and negative tolerances together. Since the range is ±0.05, the total tolerance is calculated as follows:

Total Tolerance = Positive Tolerance + Negative Tolerance

Total Tolerance = 0.05 + 0.05 = 0.10

Thus, the total tolerance for the dimension of 1.50 ± 0.05 is 0.10, indicating that the allowable range of variation is from 1.45 to 1.55. This understanding is crucial in manufacturing and engineering processes as it helps ensure that parts fit together properly and function as intended within specified limits.