Projections, Tech Drawing, & Scaling Flashcards

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1
Q

What is a projection?

A

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

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2
Q

What is an Isometric projection?

A

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

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3
Q

What is a Multiview projection?

A

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

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4
Q

What is an Exploded View projection?

A

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

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5
Q

What is an Object line? _____________

A

Shows visible details.

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6
Q

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

A

Shows hidden details.

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7
Q

What is a Dimension line? __________30___________

A

Shows a dimension inside.

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8
Q

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

A

Shows where to begin and to end.

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9
Q

What is a Diameter line? ⌀

A

Shows a diameter measurement.

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10
Q

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

A

Shows the center of a circle.

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11
Q

What is Scaling?

A

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.

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12
Q

What are the three types of scaling?

A
  • Full size | Ratio of 1:1
  • Reduction
  • Enlargement
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13
Q

What is a full size scale?

A

Shows the actual measurement of an object.

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14
Q

What is a Reduction scale?

A

Reduces the size of an object that is too large.

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15
Q

What is a Enlargement scale?

A

Increases the size of an object that is too small.

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