CDT Drawing Conventions & Standards

Question 1

What organization publishes the National CAD Standard (NCS) used for construction drawing conventions in the U.S.?

Accepted Answer

A collaborative effort of AIA, CSI, and the Construction Sciences Research Foundation (CSRF)

Answer

The National CAD Standard is a collaborative publication of AIA, CSI, and CSRF (now NIBS) establishing uniform CAD drawing conventions for the U.S. AEC industry.

Question 2

What is the purpose of a drawing keynote system on construction documents?

Accepted Answer

To reference construction materials or assemblies on drawings to a numbered legend, reducing repetitive text on the drawing

Answer

A keynote system uses numbered references on drawings tied to a keynote legend, keeping drawing sheets uncluttered while providing consistent material and assembly call-outs.

Question 3

In standard drawing sheet organization, which type of drawing is typically placed first in the set?

Accepted Answer

Architectural drawings, including the cover sheet and site plan

Answer

Construction drawing sets are organized with architectural drawings (G/A sheets) first, followed by civil/structural, mechanical, plumbing, electrical, and specialty drawings.

Question 4

What does a section cut symbol on a floor plan indicate?

Accepted Answer

The cutting plane location and direction of view for a cross-section drawing

Answer

A section cut symbol marks the location of the imaginary cutting plane through the building and the arrows show the direction the viewer looks when examining the section drawing.

Question 5

What information is typically found in a drawing title block?

Accepted Answer

Project name, drawing title, sheet number, scale, revision history, and firm information

Answer

A title block contains identifying information for each sheet: project name, owner, design firm, drawing title, sheet number, scale, date, and revision history.

CDT - Construction Documents Technologist Practice Test

CDT - Construction Documents Technologist Practice Test

CDT Drawing Conventions & Standards