🔍 Key Concepts

• Interpreting minimum dimensions on mechanical drawings • Understanding how dimension C relates to the silver-brazed joint length and the shoulder geometry • Comparing C with other given dimensions and typical fractional inch sizes

💭 Think About

• How does the required overlap for the silver braze and the shoulder thickness influence the minimum value of dimension C? • Looking at the scale of the drawing and the other labeled dimensions, which fractional value is most reasonable for the small axial distance marked C? • Among the answer choices, which values are clearly too large or too small for that narrow land at the top?

✅ Before You Answer

• Confirm that C is an axial (horizontal) distance from the shoulder face to the outer edge, not a radial thickness • Note that the drawing labels C as "Min.", so you are looking for the smallest acceptable design value, not a nominal size • Compare each choice to typical 1/64-inch step sizes and eliminate any that would make the land either excessively thin or unrealistically wide for that feature