# Lines Flashcards

1
Q

What does the outline line look like

A

It’s a Thick black line… for the outline

2
Q

Projection line is used for what

A

Is the continuous line for projecting between views - its a thin outer line

3
Q

The line which is used like an axis

A

The center line - shows direction of where it’s directed towards -
has a continuous thin dash and a dot

4
Q

The hidden detail line

A

Used for stuff you wouldn’t show for hatching, sectoring etc.

5
Q

This line with one dot and then a single dash repeated is used/called what

A

The fold line - shows where it’s gonna fold

6
Q

Dimension lines potitioning

A

Only ever positioned on the right side or bottom of the drawing/sketch

7
Q

Shows the grip marks of something

A

Knurling - in a diamond or diagonal angle

8
Q

Lines used for showing when stuff has things hidden behind it in a drawing/sketch like a hole

A

hatching - at a 45 degree angle

9
Q

why are orthographic drawings good for manufacturing

A

communicates sizes/dimensions
can show material

10
Q

A

communicates curves and arc measurements

11
Q

rule for measuring tangency

A

if back to back like )( then add
if overlapping opposite of )( then take away

where two tangents touch and curve its called the tangent point

12
Q

what is hatching/used for?

A

used to show cut area of different parts/different directions
done at 45 degree angle

13
Q

stepped section

A

stepped section cuts through the object so we can clearly see the outer holes and holes on central part of object

(only used if component has holes)

14
Q

perpendicular

A

The front view is perpendicular to the top view, and the top view is perpendicular to the right view ; adjacent views are perpendicular to each other
90degree

15
Q

parallel

A

never touches at the end

16
Q

what are Registration marks?

A

used to ensure the page remains aligned as it goes through the 4 printers in offset lithrotography