Question 240General Subjects - QMED

The correct answer is B) flexible steel rule. To measure the circumference of a pipe, a flexible steel rule is the most appropriate tool. A flexible steel rule can easily wrap around the pipe and provide an accurate measurement of the circumference. The other options, such as a hook rule, folding rule, or machinist's steel rule, are not as well-suited for measuring the circumference of a curved or circular object like a pipe. The flexible steel rule is the correct choice because it can conform to the shape of the pipe, allowing you to obtain a precise measurement of the circumference. The other options may not be able to wrap around the pipe or may not provide as accurate a measurement.