Projections, Tech Drawing, & Scaling

Question 1

What is a projection?

Answer 1

A representation of a three dimensional object on a two dimensional surface.

Question 2

What is an Isometric projection?

Answer 2

A projection were the visual lines are perpendicular to the paper.

Question 3

What is a Multiview projection?

Answer 3

A 2D representation of the top, front, & right side of the object.

Question 4

What is an Exploded View projection?

Answer 4

A projection were that shows the various parts of the object separated from one another.

Question 5

What is an Object line? _____________

Answer 5

Shows visible details.

Question 6

What is a Hidden line? - - - - - - - - - - - - - -

Answer 6

Shows hidden details.

Question 7

What is a Dimension line? __________30___________

Answer 7

Shows a dimension inside.

Question 8

What is an Extension line?
|<——30——->|

Answer 8

Shows where to begin and to end.

Question 9

What is a Diameter line? ⌀

Answer 9

Shows a diameter measurement.

Question 10

What is a Center and Symmetry Lines.
idk how to draw it

Answer 10

Shows the center of a circle.

Question 11

What is Scaling?

Answer 11

To reduce or to enlarge the image of an object in order to see it properly or to be able to represent it on paper.

Question 12

What are the three types of scaling?

Answer 12

• Full size | Ratio of 1:1
• Reduction
• Enlargement

Question 13

What is a full size scale?

Answer 13

Shows the actual measurement of an object.

Question 14

What is a Reduction scale?

Answer 14

Reduces the size of an object that is too large.

Question 15

What is a Enlargement scale?

Answer 15

Increases the size of an object that is too small.