BLArch Bachelor of Landscape Architecture Construction Documents and Materials 1 — Questions and Answers
Question 1: Which layer of a landscape construction document set typically shows proposed hardscape layout, dimensions, and materials?
- Grading plan
- Layout and materials plan (Correct answer)
- Planting plan
- Irrigation plan
Correct answer: Layout and materials plan
The layout and materials plan (also called the hardscape plan) shows dimensions, geometry, and specifications of all paved and built elements.
Question 2: What does the abbreviation 'TYP' mean on a landscape construction drawing?
- Top of yard pavement
- Typical — applies to all similar conditions (Correct answer)
- Type of plant material
- Temporary yield point
Correct answer: Typical — applies to all similar conditions
'TYP' stands for 'typical' and indicates that the noted detail or dimension applies to all similar instances on the drawing.
Question 3: Which paving material is considered most permeable for stormwater management in parking areas?
- Dense-graded asphalt
- Brushed concrete
- Permeable interlocking concrete pavers (PICP) (Correct answer)
- Stamped concrete
Correct answer: Permeable interlocking concrete pavers (PICP)
Permeable interlocking concrete pavers (PICP) have open-graded joints filled with aggregate, allowing stormwater to infiltrate through the surface.
Question 4: What is the primary function of a 'detail drawing' in landscape construction documents?
- Show overall site layout at small scale
- Provide large-scale, enlarged views of specific construction assemblies (Correct answer)
- List plant material quantities
- Establish survey control points
Correct answer: Provide large-scale, enlarged views of specific construction assemblies
Detail drawings provide large-scale, dimensioned views of specific construction assemblies (e.g., wall sections, paving joints) to guide contractors.
Question 5: In landscape construction, what does 'compaction to 95% Proctor' mean?
- Soil must reach 95% of its field capacity for moisture
- Soil must be compacted to 95% of its maximum dry density as determined by the Proctor test (Correct answer)
- 95% of the fill area must be compacted
- Compaction equipment must cover 95% of the surface
Correct answer: Soil must be compacted to 95% of its maximum dry density as determined by the Proctor test
Compacting to 95% Proctor means achieving 95% of the soil's maximum dry density as established by the Standard or Modified Proctor test.
Question 6: Which material is typically used as a flexible base course under interlocking concrete pavers?
- Portland cement concrete
- Dense-graded aggregate base (Correct answer)
- Sand-set mortar
- Compacted topsoil
Correct answer: Dense-graded aggregate base
Dense-graded aggregate (crushed stone) compacted base is used under interlocking pavers to provide a stable, flexible foundation that distributes loads.
