CLC Blueprint Reading & Technical Specifications 2 — Questions and Answers
Question 1: On a floor plan, what does a dashed rectangle drawn inside a room typically represent?
- A skylight or overhead feature (Correct answer)
- A floor drain location
- A structural column below grade
- A furniture layout placeholder
Correct answer: A skylight or overhead feature
Dashed lines on a floor plan indicate features above the cut plane, such as skylights, soffits, or overhead beams.
Question 2: What does the abbreviation 'TYP' mean when used on construction drawings?
- Total Yield Point
- Typical (Correct answer)
- Top of Yoke Plate
- Type-Approved
Correct answer: Typical
'TYP' stands for Typical, meaning the noted dimension or detail applies to all similar conditions throughout the drawings.
Question 3: A specification section written in MasterFormat would be found under which division for wood framing?
- Division 03 – Concrete
- Division 06 – Wood, Plastics, and Composites (Correct answer)
- Division 09 – Finishes
- Division 04 – Masonry
Correct answer: Division 06 – Wood, Plastics, and Composites
MasterFormat Division 06 covers Wood, Plastics, and Composites, including rough carpentry and finish carpentry specifications.
Question 4: On a site plan, contour lines that are spaced very close together indicate:
- A flat, level area
- Steep terrain (Correct answer)
- Underground utilities
- Property boundary corners
Correct answer: Steep terrain
Closely spaced contour lines represent rapid elevation change, meaning the terrain is steep in that area.
Question 5: What is the purpose of a 'revision cloud' on a construction drawing?
- To indicate a weather-sensitive installation zone
- To highlight areas that have been changed since the original issue (Correct answer)
- To show where vapor barrier is required
- To denote a change in drawing scale
Correct answer: To highlight areas that have been changed since the original issue
Revision clouds are drawn around areas that have been modified, making it easy to identify changes between drawing versions.
Question 6: Which line type on a blueprint is used to show the boundary of a section cut?
- Hidden line
- Cutting-plane line (Correct answer)
- Center line
- Break line
Correct answer: Cutting-plane line
A cutting-plane line (heavy dashes with arrows) shows where an imaginary cut is made to reveal interior details in a section view.
Question 7: On a framing plan, 'DBL 2×10' at a header location means the header consists of:
- A single 2×10 with blocking
- Two 2×10 members fastened together (Correct answer)
- A doubled 2×10 with a 1/2" plywood spacer between them
- A 4×10 rough-sawn timber
Correct answer: Two 2×10 members fastened together
'DBL' designates a double (two-piece) member; the framing plan is calling for two 2×10s nailed together as the header.
CLC Blueprint Reading & Technical Specifications 2
On a floor plan, what does a dashed rectangle drawn inside a room typically represent?