Topic: Metrology and Inspection
Plug gauge is used to measure
- A. Taper bores
- B. Cylindrical bores
- C. Spherical holes
- D. None of the above
Answer: B. Cylindrical bores
Explanation: A cylindrical plug gauge is a standard measuring tool specifically designed to check and verify the inside diameter (internal dimensions) of straight cylindrical bores. Conversely, tools like snap gauges or ring gauges are used to measure external dimensions.