AK LANDSCAPING CONTRACTOR
EXAM Questions And Correct
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Rationale2026 Q&A| Instant
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1. What is the primary purpose of soil testing before landscaping?
A. To determine the pH only
B. To evaluate nutrient levels and soil structure
C. To check for insects
D. To estimate project cost
Rationale: Soil tests measure nutrients, texture, and composition to guide
planting and amendments.
2. Which soil type has the best drainage?
A. Clay
B. Silt
C. Sand
D. Peat
Rationale: Sand particles are large and allow rapid water movement.
3. Which plant is best suited for low-water xeriscaping?
A. Hydrangea
B. Ferns
C. Bamboo
D. Agave
Rationale: Agave is drought-tolerant and ideal for xeric landscapes.
,4. The process of removing unwanted vegetation is known as:
A. Aeration
B. Grubbing
C. Mulching
D. Tilling
Rationale: Grubbing removes roots, shrubs, and vegetation before grading.
5. Which tool is best for trenching irrigation lines?
A. Spade
B. Hand pruners
C. Trencher
D. Rake
Rationale: Trenchers create narrow, deep channels for irrigation piping.
6. What is the ideal pH for most turfgrass?
A. 4.0–5.0
B. 6.0–7.0
C. 7.5–8.5
D. 3.5–4.5
Rationale: Turf thrives in slightly acidic to neutral soils.
7. Which plant hardiness reference is used nationwide in the U.S.?
A. County growth chart
B. USDA Plant Hardiness Zone Map
C. Local nursery guide
D. NOAA climate table
Rationale: The USDA map provides standardized climate-based planting
zones.
8. Mulch helps with all except:
A. Moisture retention
B. Weed suppression
C. Increasing soil salinity
D. Temperature moderation
, Rationale: Mulch does not increase salinity; it benefits moisture and
temperature control.
9. Which irrigation system is most water-efficient?
A. Oscillating sprinkler
B. Flood irrigation
C. Drip irrigation
D. Pop-up spray heads
Rationale: Drip irrigation delivers water directly to roots with minimal loss.
10. The process of shaping land to control water flow is called:
A. Hardscaping
B. Grading
C. Edging
D. Mulching
Rationale: Grading adjusts slopes for drainage and site preparation.
11. What is the term for a plant that completes its life cycle in one year?
A. Perennial
B. Biennial
C. Annual
D. Evergreen
Rationale: Annuals grow, flower, and die within a single season.
12. Which fertilizer ratio is best for encouraging root development?
A. 20-20-20
B. 30-0-0
C. 10-20-10
D. 0-0-30
Rationale: Higher phosphorus supports root growth.
13. Which material is commonly used for erosion control?
A. Sand
B. Mulch only
EXAM Questions And Correct
Answers (Verified Answers) Plus
Rationale2026 Q&A| Instant
Download Pdf
1. What is the primary purpose of soil testing before landscaping?
A. To determine the pH only
B. To evaluate nutrient levels and soil structure
C. To check for insects
D. To estimate project cost
Rationale: Soil tests measure nutrients, texture, and composition to guide
planting and amendments.
2. Which soil type has the best drainage?
A. Clay
B. Silt
C. Sand
D. Peat
Rationale: Sand particles are large and allow rapid water movement.
3. Which plant is best suited for low-water xeriscaping?
A. Hydrangea
B. Ferns
C. Bamboo
D. Agave
Rationale: Agave is drought-tolerant and ideal for xeric landscapes.
,4. The process of removing unwanted vegetation is known as:
A. Aeration
B. Grubbing
C. Mulching
D. Tilling
Rationale: Grubbing removes roots, shrubs, and vegetation before grading.
5. Which tool is best for trenching irrigation lines?
A. Spade
B. Hand pruners
C. Trencher
D. Rake
Rationale: Trenchers create narrow, deep channels for irrigation piping.
6. What is the ideal pH for most turfgrass?
A. 4.0–5.0
B. 6.0–7.0
C. 7.5–8.5
D. 3.5–4.5
Rationale: Turf thrives in slightly acidic to neutral soils.
7. Which plant hardiness reference is used nationwide in the U.S.?
A. County growth chart
B. USDA Plant Hardiness Zone Map
C. Local nursery guide
D. NOAA climate table
Rationale: The USDA map provides standardized climate-based planting
zones.
8. Mulch helps with all except:
A. Moisture retention
B. Weed suppression
C. Increasing soil salinity
D. Temperature moderation
, Rationale: Mulch does not increase salinity; it benefits moisture and
temperature control.
9. Which irrigation system is most water-efficient?
A. Oscillating sprinkler
B. Flood irrigation
C. Drip irrigation
D. Pop-up spray heads
Rationale: Drip irrigation delivers water directly to roots with minimal loss.
10. The process of shaping land to control water flow is called:
A. Hardscaping
B. Grading
C. Edging
D. Mulching
Rationale: Grading adjusts slopes for drainage and site preparation.
11. What is the term for a plant that completes its life cycle in one year?
A. Perennial
B. Biennial
C. Annual
D. Evergreen
Rationale: Annuals grow, flower, and die within a single season.
12. Which fertilizer ratio is best for encouraging root development?
A. 20-20-20
B. 30-0-0
C. 10-20-10
D. 0-0-30
Rationale: Higher phosphorus supports root growth.
13. Which material is commonly used for erosion control?
A. Sand
B. Mulch only
