Discussion
Which of the following micrometre is most suitable for measuring the thickness of piping
Answer: A
The thickness of piping is measured with a tube micrometer.
A tube micrometer has a rounded or cylindrical anvil, often set at right angles to the frame, that fits inside the bore of the tube and contacts its curved inner surface at a single point. The spindle closes on the outer surface, so the reading gives the wall thickness directly.
A depth micrometer measures the depth of holes, slots and steps. A flange micrometer has thin discs for measuring the thickness of flanges and narrow lands. Micrometer stops are accessories that set a fixed length, not a separate type of measuring micrometer.
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