Nevada C-10 Landscape Contractor
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of a site analysis in landscape
planning?
A) Estimate project cost
B) Assess existing site conditions
C) Select plant species
D) Determine client budget
Answer: B
Rationale: A site analysis evaluates soil, topography, drainage,
exposure, and other existing conditions critical for proper design
decisions.
2. Which soil property most directly affects plant root development?
A) Color
, B) Texture
C) Temperature
D) Slope
Answer: B
Rationale: Soil texture (sand, silt, clay) influences aeration, water
retention, and root penetration.
3. When grading a lawn area, the minimum slope away from a
building should be:
A) 0.5%
B) 1%
C) 2%
D) 5%
Answer: C
Rationale: A 2% slope (about 1/4” per foot) helps surface water
drain away from structures.
4. What is the most important consideration when selecting plant
species for Nevada landscapes?
A) Color preference
B) Drought tolerance
C) Flower fragrance
D) Leaf size
, Answer: B
Rationale: Nevada’s arid climate demands drought-tolerant
plants to reduce water use and stress.
5. Which irrigation system is best for maintaining trees and shrubs
with deep root zones?
A) Overhead sprinklers
B) Drip irrigation
C) Soaker hoses
D) Hand watering only
Answer: B
Rationale: Drip systems deliver water slowly near roots,
maximizing efficiency and minimizing evaporation.
6. In Nevada, xeriscaping principles emphasize:
A) Frequent fertilization
B) High water use turf
C) Efficient irrigation and drought-tolerant plants
D) Planting only exotic species
Answer: C
Rationale: Xeriscaping reduces water demand through efficient
irrigation and appropriate plant selection.
, 7. What is the primary purpose of a drainage system in landscape
construction?
A) Enhance appearance
B) Reduce irrigation costs
C) Prevent water accumulation
D) Support plant growth
Answer: C
Rationale: Proper drainage prevents erosion, standing water
problems, and damage to structures.
8. Which hardscape material is best suited for a patio subject to
occasional vehicle traffic?
A) Loose gravel
B) Brick pavers
C) Mulch
D) Turf
Answer: B
Rationale: Brick pavers lock together and bear loads better than
loose materials.
9. Landscape retaining walls must not exceed what height without
engineered design (per typical Nevada C-10 scope)?
A) 1 ft
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of a site analysis in landscape
planning?
A) Estimate project cost
B) Assess existing site conditions
C) Select plant species
D) Determine client budget
Answer: B
Rationale: A site analysis evaluates soil, topography, drainage,
exposure, and other existing conditions critical for proper design
decisions.
2. Which soil property most directly affects plant root development?
A) Color
, B) Texture
C) Temperature
D) Slope
Answer: B
Rationale: Soil texture (sand, silt, clay) influences aeration, water
retention, and root penetration.
3. When grading a lawn area, the minimum slope away from a
building should be:
A) 0.5%
B) 1%
C) 2%
D) 5%
Answer: C
Rationale: A 2% slope (about 1/4” per foot) helps surface water
drain away from structures.
4. What is the most important consideration when selecting plant
species for Nevada landscapes?
A) Color preference
B) Drought tolerance
C) Flower fragrance
D) Leaf size
, Answer: B
Rationale: Nevada’s arid climate demands drought-tolerant
plants to reduce water use and stress.
5. Which irrigation system is best for maintaining trees and shrubs
with deep root zones?
A) Overhead sprinklers
B) Drip irrigation
C) Soaker hoses
D) Hand watering only
Answer: B
Rationale: Drip systems deliver water slowly near roots,
maximizing efficiency and minimizing evaporation.
6. In Nevada, xeriscaping principles emphasize:
A) Frequent fertilization
B) High water use turf
C) Efficient irrigation and drought-tolerant plants
D) Planting only exotic species
Answer: C
Rationale: Xeriscaping reduces water demand through efficient
irrigation and appropriate plant selection.
, 7. What is the primary purpose of a drainage system in landscape
construction?
A) Enhance appearance
B) Reduce irrigation costs
C) Prevent water accumulation
D) Support plant growth
Answer: C
Rationale: Proper drainage prevents erosion, standing water
problems, and damage to structures.
8. Which hardscape material is best suited for a patio subject to
occasional vehicle traffic?
A) Loose gravel
B) Brick pavers
C) Mulch
D) Turf
Answer: B
Rationale: Brick pavers lock together and bear loads better than
loose materials.
9. Landscape retaining walls must not exceed what height without
engineered design (per typical Nevada C-10 scope)?
A) 1 ft
