CDT Technical Drawing & Blueprint Interpretation 2

Question 1

On a mechanical drawing, what does a phantom line (long-short-short-long) typically represent?

Accepted Answer

Alternate positions or repeated detail

Answer

Phantom lines indicate alternate positions of moving parts, adjacent parts for reference, or repeated detail.

Question 2

A section view labeled 'A-A' corresponds to which cutting-plane line on the primary view?

Accepted Answer

The cutting-plane line labeled with matching letters A-A

Answer

Section view labels match the letters placed at the arrowheads of the corresponding cutting-plane line.

Question 3

What is the correct first-angle projection symbol used to differentiate it from third-angle projection on a drawing?

Accepted Answer

A cone with its apex pointing left toward a truncated view

Answer

In first-angle projection, the symbol shows the apex of a cone pointing toward the truncated end of the cone (leftward), indicating the European standard.

Question 4

Which line type is used to indicate the boundary of a partial view or a removed section?

Accepted Answer

Short-break line (freehand zigzag)

Answer

Short-break lines (freehand irregular zigzag) indicate where a partial or broken-out section boundary lies.

Question 5

On a blueprint, the note 'TYP' next to a dimension means:

Accepted Answer

The dimension applies to all identical features unless otherwise noted

Answer

'TYP' (Typical) means the dimension or feature shown applies uniformly to all similar instances on the drawing.

(CDT) Certified Drafting Technician Practice Test

(CDT) Certified Drafting Technician Practice Test

CDT Technical Drawing & Blueprint Interpretation 2