LARE LARE Section 2

Question 1

During grading design, a landscape architect needs to direct stormwater away from a building foundation. What is the minimum recommended slope for paved surfaces adjacent to structures?

Accepted Answer

2.0%

Answer

A minimum 2% slope (2 inches per 10 feet) is required for paved surfaces adjacent to buildings to ensure positive drainage away from foundations.

Question 2

Which soil amendment is most appropriate for improving the drainage of heavy clay soils in a landscape planting bed?

Accepted Answer

Coarse sand

Answer

Coarse sand, when added in sufficient quantity (at least 50% by volume), improves drainage in clay soils by increasing macropore space.

Question 3

A contractor submits a substitution request for a specified plant species. Under AIA contract documents, who has final authority to approve or reject the substitution?

Accepted Answer

The landscape architect

Answer

The landscape architect, as the design professional of record, has the authority to approve or reject substitutions during construction administration.

Question 4

What is the primary purpose of a retention pond in a stormwater management system?

Accepted Answer

Permanently hold water to reduce peak runoff volume

Answer

A retention pond permanently holds water, reducing total runoff volume and peak flow rates by capturing and storing stormwater on-site.

Question 5

Under the Americans with Disabilities Act (ADA), what is the maximum cross-slope allowed for an accessible route?

Accepted Answer

1:50 (2%)

Answer

ADA guidelines require accessible routes to have a maximum cross-slope of 1:50 (2%) to prevent wheelchairs from drifting sideways.

LARE Test Practice Test

LARE Test Practice Test

LARE LARE Section 2