Deck 7: GDT Rules

Question 1

The fundamental dimensioning rules are a set of general rules that apply to dimensioning and interpreting engineering drawings.

Answer 1

True

Question 2

A(n) ____________________ basic dimension applies where axes, center planes, or surfaces are shown coincident on a drawing, and geometric tolerances establish the relationship among the features or features of size.

Answer 2

0
zero

Question 3

State the four Rule #1 requirements.

Answer 3

Rule #1 requirements:
1. The surface or surfaces of a regular feature of size shall not extend beyond a boundary of perfect form at MMC.
2. Where a regular feature of size is produced at MMC, it must have perfect form.
3. Where the actual local sizes of a regular feature of size are different than the MMC, a local variation in form equal to the amount of departure from MMC is allowed.
4. Rule #1 only applies to individual regular features of size.

Question 4

Rule #1 is referred to as the "____________________."

Question 5

A(n) ____________________ is a device of defined geometric form and size used to assess the conformance of a feature(s) of a workpiece to a dimensional specification. It does not return a size value, but instead returns an "accept or reject" indication for a dimension.

Question 6

What are the two exceptions to Rule #1?

Question 7

What are the three ways Rule #1 can be overridden?

Question 8

Where Rule #1 applies to an internal regular feature of size, the minimum boundary (or envelope) of the regular feature of size is equal to its largest size limit (MMC).

Question 9

There are ____________________ fundamental dimensioning rules.

Question 10

In Rule #1, what do the words "perfect form" mean?

Question 11

Where processing information is shown on a drawing, it should be labeled mandatory.

Question 12

Unless otherwise specified, where a coordinate system is shown on a drawing, it shall be right-handed.

Question 13

What are the two components of Rule #1?

Question 14

Unless otherwise specified, all tolerances apply in a free-state condition, except for non-rigid parts defined with a restraint note.

Question 15

Where the ____________________ symbol is applied to the size dimension of a regular feature of size, the characteristics of size and form are independent, so Rule #1 does not apply.