The diameter of the test wire is best measured with:

  1. a vernier caliper once
  2. a metre rule
  3. a measuring tape
  4. a micrometer screw gauge, at several places
Answer

D) a micrometer screw gauge, at several places

The diameter is small (≈ 0.5 mm) and is squared, so precision matters. SLO P-11-B-25 · Understanding

Physics MCQ · More Deformation of Solids MCQs · Practise