Deck 3: Hidden Lines and Center Lines

Question 1

What is the line in the accompanying figure used to represent?

Answer 1

This type of line represents invisible edges and surfaces.

Question 2

A(n) ____ line is drawn as a thin (light), broken line of long and short dashes, spaced alternately.

A) secondary
B) hidden
C) dividing
D) center

Answer 2

D

Question 3

Describe the purpose of center lines.

Answer 3

Center lines are used to indicate the center of a whole circle or a part of a circle and also to show that an object is symmetrical about a line

Question 4

What is the symbol indicated by an arrow in the accompanying figure often used with?

Question 5

To show that a line is ____, the draftsperson usually uses a thin, broken line of short dashes.

A) visible
B) hidden
C) centered
D) referenced

Question 6

Center lines are used to indicate the center of a whole circle or a part of a circle and also to show that an object is ____ a line.

A) tangential to
B) adjacent to
C) symmetrical about
D) enclosed around

Question 7

The accompanying figure shows a(n) ____ edge.

A) invisible
B) temporary
C) logical
D) optional

Question 8

What is required for a drawing to be complete?

Question 9

In the accompanying figure, what does the blue arrow point to?