Question 168General Subjects - QMED

The correct answer is A) outside micrometer. An outside micrometer is the most accurate method of measuring the setting of an inside caliper. This is because an outside micrometer is specifically designed to accurately measure external dimensions, which is exactly what you are trying to measure when setting an inside caliper. The other options are not as accurate for this task. A dial indicator would not be able to directly measure the caliper setting, an engineer's scale would not provide the same level of precision, and a thread micrometer is designed for measuring internal threads, not general external dimensions.