ADDA Drafting Certification: Competency
2(Equipment, Techniques, Rules, Principles)
UPDATED ACTUAL Exam Questions and
CORRECT Answers
scale - CORRECT ANSWER - 1. A straight-edged strip of rigid material marked at regular
intervals and used to measure distances. 2. A proportion between two sets of dimensions used in
developing accurate, larger or smaller prototypes, or models of design ideas.
full-divided - CORRECT ANSWER - every inch on scale is divided into as many parts as
it measures
open-divided - CORRECT ANSWER - only one inch on scale is divided into as many
parts as the scale measures
steel rule - CORRECT ANSWER - more accurate than a plastic; of all measuring tools, it
is the simplest and most common; used to measure up to 300mm; measure straight line
accurately
1:2 - CORRECT ANSWER - half size
1:4 - CORRECT ANSWER - quarter size
mechanical scale - CORRECT ANSWER - has 10 scales; used for mechanical drafting
triangles - CORRECT ANSWER - two (generally plastic) pieces of equipment used to
create parallel and perpendicular lines, as well as lines at 30, 60, and 45 degrees
drafting machine - CORRECT ANSWER - replaced need for t-squares, protractor, scales,
and triangles all in one
2(Equipment, Techniques, Rules, Principles)
UPDATED ACTUAL Exam Questions and
CORRECT Answers
scale - CORRECT ANSWER - 1. A straight-edged strip of rigid material marked at regular
intervals and used to measure distances. 2. A proportion between two sets of dimensions used in
developing accurate, larger or smaller prototypes, or models of design ideas.
full-divided - CORRECT ANSWER - every inch on scale is divided into as many parts as
it measures
open-divided - CORRECT ANSWER - only one inch on scale is divided into as many
parts as the scale measures
steel rule - CORRECT ANSWER - more accurate than a plastic; of all measuring tools, it
is the simplest and most common; used to measure up to 300mm; measure straight line
accurately
1:2 - CORRECT ANSWER - half size
1:4 - CORRECT ANSWER - quarter size
mechanical scale - CORRECT ANSWER - has 10 scales; used for mechanical drafting
triangles - CORRECT ANSWER - two (generally plastic) pieces of equipment used to
create parallel and perpendicular lines, as well as lines at 30, 60, and 45 degrees
drafting machine - CORRECT ANSWER - replaced need for t-squares, protractor, scales,
and triangles all in one
