Question

Two shafts A and B have their diameters specified as $100\pm 0.1mm$ and$0.1\pm 0.0001mm$ respectively. Which of the following statements is/are true

• A. The relative error in the dimension is greater in shaft A
• B. Tolerance in the dimension is greater in shaft B
• C. The relative error in the dimension is same for shaft A and shaft B
• D. Tolerance in the dimension is greater in shaft A

Answer 1

The correct option is D Tolerance in the dimension is greater in shaft A

$\text{Tolerance of shaft A}=100.1-99.9=0.2mm$

$\text{Tolerance of shaft B}=0.1001-0.999=0.0002mm$

$\text{So, Tolerance of shaft A > Tolerance of shaft B}$