CDT Drafting & Design Principles & Techniques 2

Question 1

Which type of line is used to show the boundary of a partial or interrupted view in technical drafting?

Accepted Answer

Break line

Answer

Break lines (short or long) indicate that a portion of the object has been removed to save space or reveal interior detail.

Question 2

In geometric construction, which method is used to bisect a given angle?

Accepted Answer

Draw arcs from each ray and connect intersection points to the vertex

Answer

Bisecting an angle with a compass involves drawing equal arcs from each ray, then connecting the arc intersection to the vertex.

Question 3

What does the term 'true shape' mean in descriptive geometry?

Accepted Answer

The actual size and shape of a surface as seen in a view parallel to that surface

Answer

True shape appears in a view where the line of sight is perpendicular to the surface, showing its actual dimensions without foreshortening.

Question 4

Which drafting instrument is specifically designed to draw lines at any angle relative to a straightedge?

Accepted Answer

Adjustable triangle

Answer

An adjustable triangle (or drafting machine) allows the drafter to set and lock any angle for drawing inclined lines.

Question 5

In CAD drafting, what is the purpose of a 'layer' system?

Accepted Answer

To organize different types of information so they can be controlled independently

Answer

Layers allow drafters to separate elements such as dimensions, annotations, and geometry so each type can be toggled, locked, or plotted independently.

(CDT) Certified Drafting Technician Practice Test

(CDT) Certified Drafting Technician Practice Test

CDT Drafting & Design Principles & Techniques 2