Metrology: Worst-Case Axial Tolerance Stacks

Metrology: Worst-Case Axial Tolerance Stacks

Original quantitative topic practice in English. All 24 questions are included in a shuffled order. Each question supplies its own data and model assumptions; use only those assumptions. Choose one answer. Practice target: 20/24, not an official examination pass mark. Keep full intermediate precision. These exercises cover the calculation scope in the title; they do not constitute a full Red Seal examination, trade qualification, site design or operating specification.
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An axial cavity has nominal length 100 mm with ±0.15 mm tolerance. It contains two spacers, nominally 38±0.05 mm and 60±0.1 mm. Axial gap = cavity minus both spacer lengths. Use worst-case independent limits, not a statistical root-sum-square calculation. Calculate the nominal axial gap in mm. Keep intermediate values unrounded; round the final answer to 4 decimal places if needed.