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 plan view showing the roof structure from above

Answer

A section cut through the ceiling assembly showing insulation details

Answer

An elevation view of the exterior building cornice

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

All lines are the same weight for clarity and consistency

Answer

Dashed lines are heavier than solid lines to indicate hidden conditions

Answer

Title lines are thinnest; dimension lines are heaviest

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

A finished floor material change

Answer

The property line boundary

Answer

A fire-rated wall assembly

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

To provide a summary of the project specifications

Answer

To document the revision history of all sheets

Answer

To identify the drawing scale used on each sheet

Question 5

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

Accepted Answer

Structural drawings

Answer

Site drawings

Answer

Specifications

Answer

Survey drawings

Question 6

What is the purpose of a wall type legend on architectural drawings?

Accepted Answer

To define and identify the different wall assembly types used in the project with their components and fire ratings

Answer

To show the color and texture of each wall finish material

Answer

To list the contractor responsible for constructing each wall type

Answer

To document the structural load capacity of each wall