Exam 13: Geometric Dimensioning and Tolerancing

Describe the symmetry geometric tolerance.

Define degrees of freedom.

Explain the difference between the methods used to repre- sent surface and axis straightness.

Describe datum feature simulators. Include the term simu- lated datums in your description and give at least three ex- amples of datum feature simulators used in manufacturing.

How is the feature control frame placed in relation to a hole and counterbore when the positional tolerance is the same for the hole and counterbore?

Calculate the minimum edge distance or minimum wall thickness between the edge of a hole and the outside surface of the part for an LMC positional tolerance application given the following information (dimensions are in millimeters).

The primary datum plane must be established by at least point(s) on the primary datum surface.

Define runout.

Define restrained condition.

Label the symbol in the following application using the blank provided.

The secondary datum plane must be established by at least point(s) on the secondary datum surface.

Define datum plane.

Define concentricity.

What does a movable datum target symbol indicate?

When referring to the datum reference frame in the feature control frame, the datum is given first fol- lowed by the and datums. This is known as the datum .

Given the following symbols, provide the meaning of each symbol in the spaces to the right.

Describe when composite positional tolerancing is used.

Given the following drawing, describe the profile geometric tolerance and related drawing specifications. Indicate whether the drawing shows preferred ASME Y14.5 use or an alternate practice.

Name the three datums of a complete datum reference frame.

Define perpendicularity.