Question 1

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

Accepted Answer

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

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.

Accepted Answer

0
zero

Question 3

State the four Rule #1 requirements.

Accepted Answer

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 "____________________."

Accepted Answer

The answer of 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.

Accepted Answer

The answer of A(n) ____________________ is a device of defined...

Question 6

What are the two exceptions to Rule #1?

Accepted Answer

The answer of What are the two exceptions to Rule...

Question 7

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

Accepted Answer

The answer of What are the three ways Rule #1...

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).

Accepted Answer

Rule #1, also known as the Envelope Principle, states that the form of a feature must be contained within the boundary of its maximum material condition (MMC), not that the minimum boundary is equal to the largest size limit.

Question 9

There are ____________________ fundamental dimensioning rules.

Accepted Answer

The answer of There are ____________________ fundamental dimensioning rules....

Question 10

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

Accepted Answer

The answer of In Rule #1, what do the words...

Question 11

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

Accepted Answer

The statement is not necessarily true. Whether or not processing information needs to be labeled as mandatory on a drawing largely depends on the context and purpose of the drawing. While it may be important to label processing information as mandatory in some cases, it may not be necessary in others.

Question 12

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

Accepted Answer

This is a standard industry practice where the x-axis points to the right, the y-axis points upwards, and the z-axis points outwards from the plane of the drawing.

Question 13

What are the two components of Rule #1?

Accepted Answer

The answer of What are the two components of Rule...

Question 14

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

Accepted Answer

This statement is true, as it is common practice for tolerances to be specified for parts in a free-state condition unless otherwise noted for non-rigid parts with a specific 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.

Accepted Answer

The answer of Where the ____________________ symbol is applied to...

Quiz 7: GDT Rules