LARE LARE 2 — Questions and Answers
Question 1: Which LARE section focuses on grading, drainage, and construction documentation?
- Section A
- Section B (Correct answer)
- Section C
- Section D
Correct answer: Section B
Section B of the LARE specifically covers grading, drainage, and construction documentation skills.
Question 2: A landscape architect needs to calculate the runoff from a 2-acre site with a runoff coefficient of 0.6 and a rainfall intensity of 3 in/hr. What is the peak discharge using the Rational Method?
- 2.4 cfs
- 3.6 cfs (Correct answer)
- 5.0 cfs
- 1.8 cfs
Correct answer: 3.6 cfs
The Rational Method formula Q = CiA gives 0.6 × 3 × 2 = 3.6 cfs.
Question 3: In landscape architecture, what does the term 'swale' refer to?
- A retaining wall used on steep slopes
- A shallow vegetated channel that conveys and filters stormwater (Correct answer)
- A type of permeable paving material
- An underground detention basin
Correct answer: A shallow vegetated channel that conveys and filters stormwater
A swale is a shallow, vegetated channel designed to slow, convey, and filter stormwater runoff.
Question 4: What contour interval is most appropriate for detailed grading plans on a residential site with moderate slopes?
- 10 feet
- 5 feet
- 1 foot (Correct answer)
- 0.5 feet
Correct answer: 1 foot
A 1-foot contour interval provides sufficient detail for residential grading plans with moderate slopes.
Question 5: When designing a bioretention cell, which soil mix composition is most commonly specified for optimal infiltration and plant growth?
- 100% native soil
- 50–60% sand, 20–30% compost, 20–30% topsoil (Correct answer)
- 100% gravel
- 80% clay, 20% sand
Correct answer: 50–60% sand, 20–30% compost, 20–30% topsoil
A bioretention soil mix of roughly 50–60% sand, 20–30% compost, and 20–30% topsoil balances infiltration with plant-available nutrients.
Question 6: What is the minimum recommended slope for turf areas to ensure positive surface drainage away from structures?
- 0.5%
- 1%
- 2% (Correct answer)
- 5%
Correct answer: 2%
A minimum 2% slope is standard for turf areas to promote positive drainage away from buildings.
Question 7: Which document type in a construction set provides written technical requirements for materials and workmanship?
- Site plan
- Detail drawings
- Specifications (Correct answer)
- Grading plan
Correct answer: Specifications
Specifications are written documents that describe the quality, standards, and installation requirements for materials and workmanship.
LARE LARE 2
Which LARE section focuses on grading, drainage, and construction documentation?