Geometric Dimensioning and Tolerancing for Mechanical Design

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Geometric Dimensioning and Tolerancing for Mechanical Design
Answer Guide
(Answers to the questions and problems at the end of each chapter)

Geometric Dimensioning and Tolerancing for Mechanical Design Answer Guide 2

Chapter 1 Introduction to Geometric Dimensioning and Tolerancing
Chapter Review
Page 7 1. Geometric Dimensioning and Tolerancing is a symbolic language used to specify size , shape , form , orientation, the and

location

of features on a part.

2. Features toleranced with GD&T reflect the between mating parts.

actual relationship

3. Geometric Dimensioning and Tolerancing was designed to insure the proper assembly of mating parts , to improve quality , and reduce cost . 4. Geometric tolerancing allows the maximum
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20. If CAD/CAM database models are used and they do not include tolerances, tolerance values CAD product definition data set. may be expressed in a

Geometric Dimensioning and Tolerancing for Mechanical Design Answer Guide 5

Chapter 3 Symbols, Terms, and Rules
Chapter Review
Page 40 1. 2. 3. 4. What type of geometric tolerance has no datum features? Which of the form tolerances is the most common?

Form controls

Flatness

What type of geometric tolerances indicates an angular relationship with specified datum Orientation controls features? What is the name of the symbol that is used to identify physical features of a part as datum features and should not be applied to centerlines, center planes, or axes?

Datum feature symbol
5. 6. Datum feature identifying letters may be any letter of the alphabet except?

I, O, & Q

If the datum feature symbol is placed in line with a dimension line or on a feature control frame associated with a feature of size, then the datum feature is what is what kind of feature?

A feature of size
7. One of the 14 geometric characteristic symbols always appears in the compartment of the feature control frame. 8. 9. The second compartment of the feature control frame is the

first section. tolerance

The tolerance is preceded by a diameter symbol only if the tolerance zone is

cylindrical .
.

10. Datum features are arranged in order of

precedence or importance

11. Read the feature control

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