Key Terms

Question 1

Drafting Board

Answer 1

The starting point for a drafters workstation. Most are equipped with legs to stand on the floor

Question 2

T-Square

Answer 2

Free sliding instrument that moves up and down on a drafting board. The “T” end flush against one of the edges of the board. Establishes a horizontal base.

Question 3

Parallel Rule

Answer 3

device attached to drafting board with thin wire (removable) moving up and down, stays parallel at all times

Question 4

Drafting Media

Answer 4

material on which drafters put lines on

Question 5

Tracing Paper

Answer 5

less costly and translucent and usually meant for early sketches

Question 6

Drafting Tape

Answer 6

holds drafting media to the board. Not as adhesive as masking tape

Question 6

Vellum Paper

Answer 6

more expensive and more quality paper

Question 7

Lead Holders

Answer 7

holds lead in place, leads can be interchangeable and the tip of the lead can be any shape.

Question 8

Mechanical Pencils

Answer 8

holds thinner leads and doesn’t need sharpening but lead breaks easily

Question 9

Drafting Leads

Answer 9

The leads that fill lead holders. Made out of graphite. Hard lead= thin, light lines. Soft lead= thicker, darker. Hard to Soft; 9H->2H,H,HB,F,B,->6B

Question 10

Lead Pointers

Answer 10

to hone the end of the lead to the perfect shape in order to produce a specific line thickness

Question 11

Technical Pens

Answer 11

To make lines with ink. Pen points (removable) line thickness from 0.13mm to 2mm

Question 12

Architect Scales

Answer 12

measures in ft and inches at ratio of 3/32” = 1’- 0” to 3” = 1’ - 0”

Question 13

Engineers Scales

Answer 13

measures ft and inches of a foot at user defined ratios based on 10,20,30, etc can set 1” = 200’, 1” = 2000’

Question 14

Metric Scales

Answer 14

based on the metric system, the metric system, meter and decimeter (tenths) and centimeter (hundredths) 1:10, 1:20, 1:30

Question 15

Adjustable Triangles

Answer 15

adjusted to any angle by moving one side and locking into place.

Question 16

30-60-90 Triangle

Answer 16

the angles they define

Question 17

45-45-90 Triangle

Answer 17

the angles they define. Together may produce any angle at 15 degree increments

Question 18

Beam Compass

Answer 18

a long beam on which a drafter can attach and adjust a pin to one end and a lead or pen point at the other

Question 19

Erasing Shield

Answer 19

Thin metal or plastic sheet that resembles a template. Allows drafter to erase only that part of the drawing