Exam 15: Metric Fits

Refer to Appendix Table 25 in your textbook. In a force fit with a 20mm basic diameter, the maximum hole size would be ____ mm.

In the tolerance zone symbol H8, the H stands for a(n) ____________________ dimension.

For metric fits, the ___________________________________ establishes the magnitude of the tolerance zone or the amount of part size variation allowed for both internal and external dimensions.

Grades 1 through 8 are very precise grades.

In the metric system of limits and fits, the grade number and the tolerance zone are inversely proportioned.

When using tolerance position letters, capital letters are used for external dimensions, and lowercase letters for internal dimensions.

A Ø30 H8/f7 fit symbol designates _________________________ basis.

The fit symbol includes the fit(s) and the _________________________.

In the hole basis fit system, the basic size is the ____________________ size of the hole.

Grade 14 would be suitable for specifying a tolerance requirement for a pressing or rolling operation.

Refer to Appendix Table 23 in your textbook. An F8/h7 symbol would be used to specify a ____ fit.

A Ø30 f7 fit symbol designates ____.

Refer to Appendix Table 24 in your textbook. In a loose running fit with a 10mm basic diameter, the minimum hole size would be ____.

Grade 9 would be suitable for specifying a tolerance requirement for a milling operation.

Refer to Appendix Table 24 in your textbook. In a sliding fit with a 32mm basic diameter, the maximum hole size would be ____.