Deck 11: Patterns and Developments

Question 1

In parallel line development, at which angle to the base line must the fold lines be projected?

A)45 degrees
B)60 degrees
C) 90 degrees
D) 180 degrees

Answer 1

C

Question 2

If a transitional piece does not have fold lines, it is developed in the same manner as any other triangulation development.

Answer 2

True

Question 3

A gage number represents the weight per square foot of a particular material.

Answer 3

True

Question 4

An automobile fender is an example of a single-curved surface.

Question 5

The reason we develop the pattern or template with the inside surface up is because important dimension sizes and fold or bend locations are assumed to occur on the inside surface of the final object.

Question 6

What is one of the two major kinds of notches used in a development?

A)sharp U
B)sharp V
C) rounded U
D) both A and B

Question 7

After labeling all points, the next step in drawing a radial line development is to:

A)draw a stretchout line
B)draw an arc
C) find the true length of the fold lines
D) Any step may be done next

Question 8

When creating a simple box, most of the fold lines are perpendicular to the baseline.

Question 9

When drawing developments, all surfaces must be true shape and size.

Question 10

Which kind of development would be used to develop a pattern?

A)parallel line development
B)truncated line development
C) radial line development
D) triangulation line development

Question 11

Tabs are used to fasten items together.

Question 12

Radial line developments do not require a stretchout line.

Question 13

A true length diagram is often a quicker method to obtain needed projections than by descriptive geometry methods.

Question 14

Two major types of notches are usually used: a sharp U, or a rounded U.

Question 15

The less the bend angle, the greater the amount of bend allowance needed.

Question 16

When comparing a No. 21 gage piece of steel, brass, and aluminum, all are the same thickness.

Question 17

A No. 16 gage piece of aluminum is slightly heavier than a No. 17 piece of aluminum.

Question 18

A transitional piece is usually stamped or pressed into a particular shape.

Question 19

The gage system of calling out the thickness of a material is being phased out because:

A)It is out-of-date.
B)It is difficult to learn
C) It is inaccurate.
D) none of the above

Question 20

Bend allowance refers to the practice of calculating the length of material needed by each bend.

Question 21

Which of the following object does not require a development?

A)tool box
B)cereal box
C) wooden jewelry box
D) simple mailbox

Question 22

A piece of wrought iron that measures 1"×12"×12" weighs _____ lbs.

A)24
B)25
C) 40
D) 48

Question 23

Which of the following is an example of a single-curved surface?

A)air conditioning duct
B)cereal box
C) automobile fender
D) globe

Question 24

To create a cylinder for a soup can, what type of pattern development would be drawn?

A)radial line
B)triangulation
C) parallel line
D) fold line

Question 25

Which of the following is not a major kind of surface development?

A)parallel line development
B)cubic development
C) radial line development
D) triangulation development

Question 26

If an object is truncated it will always:

A)contain all foreshortened surfaces
B)contain all true shape surfaces
C) contain more than six sides
D) none of the above

Question 27

A piece of sheet metal that has the edge bent at a 90-degree angle forms a:

A)lap seam
B)standing seam
C) single flange
D) locked seam

Question 28

When creating a lap or seam which of the following does not need to be considered?

A)method of fastening
B)thickness of the metal
C) type of surface
D) type of metal

Question 29

Which of the following elements must be located or laid out before a development can actually be started?
Lengths
B)true distances
C) station lines
D) both A and B

Question 30

The following formula is used to calculate circumference:

A)3.1416 × r
B)3.1416 × d
C) 3.1416 × 2d
D) 3.1416 × 3r

Question 31

The notation a-a' would indicate a:

A)tab
B)fold line
C) stretchout line
D) true length line

Question 32

To join a circular shape to a straight edge, _____ tabs are used.

A)seam tabs
B)notched tabs
C) regular tabs
D) lap tabs

Question 33

When creating a pattern development, the designer must consider all of the following except:

A)type of material
B)size of the pattern
C) placement of the seams and tabs
D) quantity to be produced

Question 34

The purpose of a lap joint is to:

A)reinforce the edge
B)join two separate pieces
C) roll the end of the material
D) all of the above

Question 35

Which of the following is an example of a flat-plane surface?

A)funnel
B)cereal box
C) soup can
D) tabletop