CDT Drawing Conventions & Standards 3

Question 1

What is a reflected ceiling plan (RCP) in construction documents?

Accepted Answer

A plan view of the ceiling as if a mirror on the floor reflected it upward, showing ceiling heights, lights, diffusers, and grid

Answer

A reflected ceiling plan shows the ceiling as seen from above with a mirror on the floor, documenting ceiling heights, grid layouts, light fixtures, HVAC diffusers, and other ceiling-mounted elements.

Question 2

What is the standard line weight hierarchy in construction drawings?

Accepted Answer

Heavier lines indicate objects in the foreground or cut plane; lighter lines show background elements and notes

Answer

Standard drawing convention uses heavier line weights for elements that are cut through or in the foreground and progressively lighter lines for elements farther from the viewer, creating visual hierarchy.

Question 3

What does a dashed line typically represent on a floor plan?

Accepted Answer

An element above the cut plane that is not visible but relevant, such as a beam or upper cabinet

Answer

On floor plans, dashed lines indicate hidden or overhead elements above the typical 4-foot cut plane, such as overhead beams, upper cabinets, skylights, or upper-floor overhangs.

Question 4

What is the primary function of a drawing index or sheet list in a construction document set?

Accepted Answer

To list all drawings in the set with their sheet numbers and titles for quick navigation

Answer

A drawing index lists every sheet in the construction document set by sheet number and title, allowing users to quickly locate specific drawings.

Question 5

In the AIA sheet numbering system, what does the letter prefix 'S' indicate?

Accepted Answer

Structural drawings

Answer

In the AIA alphanumeric sheet designation system, 'S' prefix sheets are Structural drawings, while 'C' designates Civil, 'A' Architectural, 'M' Mechanical, 'P' Plumbing, and 'E' Electrical.

CDT - Construction Documents Technologist Practice Test

CDT - Construction Documents Technologist Practice Test

CDT Drawing Conventions & Standards 3