Dimensioning and Learning Objectives

What is the purpose of dimensioning in drawings?

• To add color

• To annotate simple drawings for constructing an object

• To erase mistakes

• To create 3D models.

Which of the following is a rule for dimensioning cylindrical objects?

• Dimension as radii

• Dimension as diameters

• Dimension as lengths

• Dimension as widths

When dimensioning, extension lines may cross each other but dimension lines should ___.

• Always cross

• Never cross

• Sometimes cross

• Rarely cross

Which of the following should be avoided when dimensioning?

• Duplicating dimensions

• Using abbreviations

• Placing reference dimensions in parentheses

• Using inch mark for inches.

When all dimensions are expressed in inches, what should not be used?

• Inch mark (" ")

• Abbreviation for inches (in.)

• Zero before values less than one

• Both A and B.

What should be extended from a finished edge of the part in baseline or ordinate dimensions?

• Datum

• Reference line

• Center line

• Leader line

What is the recommended practice for placing dimensions on a part?

• Inside the view

• Outside the view

• On the hidden lines

• On the finished surface.

In which view should holes be dimensioned?

• Circular view

• Rectangular view

• Side view

• Top view

Which chapter of 'Essentials of Engineering Design Graphics' covers dimensioning practices?

• Chapter 1

• Chapter 2

• Chapter 3

• Chapter 4

Fill in the blank: Rounded corners should be dimensioned as _______ in their rounded view.

• diameters

• radii

• lengths

• widths