QAC Category B – Landscape
Maintenance License Exam With
Actual Questions & Verified
Answers,Plus Rationales/Expert
Verified For Guaranteed Pass
2025/2026 /Latest Update/Instant
Download Pdf
1. Which of the following is the most important factor in maintaining healthy turfgrass?
A) Frequency of mowing
B) Type of fertilizer
C) Soil aeration
D) Amount of sunlight
Answer: D) Amount of sunlight
**Rationale: Sunlight is critical for photosynthesis, which drives plant growth. While
mowing, fertilization, and aeration are important, sunlight directly affects plant
health.
2. What is the best time of day to water plants to minimize water loss?
A) Midday
B) Late afternoon
C) Early morning
D) Evening
Answer: C) Early morning
**Rationale: Watering in the early morning reduces evaporation and allows plants to
absorb water before the heat of the day.
3. Which pruning method removes dead or diseased branches to improve plant health?
A) Thinning
B) Heading
C) Sanitation
D) Shearing
, Answer: C) Sanitation
**Rationale: Sanitation pruning focuses on removing dead, diseased, or damaged
branches to prevent disease spread.
4. Which type of fertilizer releases nutrients slowly over time?
A) Liquid fertilizer
B) Water-soluble fertilizer
C) Controlled-release fertilizer
D) Foliar fertilizer
Answer: C) Controlled-release fertilizer
**Rationale: Controlled-release fertilizers slowly release nutrients over time,
providing consistent feeding and reducing nutrient runoff.
5. What is the main purpose of aerating soil in landscape maintenance?
A) Reduce soil compaction
B) Remove weeds
C) Increase sunlight penetration
D) Improve plant color
Answer: A) Reduce soil compaction
**Rationale: Aeration alleviates compacted soil, allowing better root growth and
water/nutrient infiltration.
6. When should cool-season grasses be fertilized for optimal growth?
A) Spring and fall
B) Summer only
C) Winter only
D) Fall and winter
Answer: A) Spring and fall
**Rationale: Cool-season grasses grow best in cooler temperatures; fertilizing in
spring and fall promotes healthy growth.
7. Which of the following is a common symptom of overwatering?
A) Leaf burn
B) Yellowing leaves
C) Slow growth due to lack of nutrients
D) Brown, dry leaves
Answer: B) Yellowing leaves
**Rationale: Overwatering can suffocate roots and lead to yellowing foliage due to
poor oxygen availability in the soil.
8. Which pest is most likely to damage turfgrass roots?
A) Aphids
B) Grubs
, C) Spider mites
D) Caterpillars
Answer: B) Grubs
**Rationale: Grubs feed on turfgrass roots, causing patches of dead or weakened
grass.
9. What is the best method to prevent soil erosion on slopes?
A) Frequent mowing
B) Mulching
C) Installing sod or groundcover
D) Applying fertilizer
Answer: C) Installing sod or groundcover
**Rationale: Groundcover stabilizes soil and reduces erosion by protecting it from
water runoff and wind.
10. Which tool is most effective for trimming small shrubs?
A) Hedge shears
B) Pruning saw
C) Loppers
D) Hand pruners
Answer: D) Hand pruners
**Rationale: Hand pruners are precise and ideal for small branches and detailed
trimming.
11. Which of the following is a sign of nitrogen deficiency in plants?
A) Purple leaves
B) Yellowing of older leaves
C) Leaf curling
D) White spots on leaves
Answer: B) Yellowing of older leaves
**Rationale: Nitrogen deficiency typically causes chlorosis, starting with older leaves,
as nitrogen is mobile within the plant.
12. What is the recommended mowing height for most cool-season turfgrasses?
A) 0.5–1 inch
B) 1–2 inches
C) 2–3 inches
D) 4–5 inches
Answer: C) 2–3 inches
**Rationale: Maintaining a 2–3 inch height helps grass develop deep roots, shade
soil, and reduce weed growth.
Maintenance License Exam With
Actual Questions & Verified
Answers,Plus Rationales/Expert
Verified For Guaranteed Pass
2025/2026 /Latest Update/Instant
Download Pdf
1. Which of the following is the most important factor in maintaining healthy turfgrass?
A) Frequency of mowing
B) Type of fertilizer
C) Soil aeration
D) Amount of sunlight
Answer: D) Amount of sunlight
**Rationale: Sunlight is critical for photosynthesis, which drives plant growth. While
mowing, fertilization, and aeration are important, sunlight directly affects plant
health.
2. What is the best time of day to water plants to minimize water loss?
A) Midday
B) Late afternoon
C) Early morning
D) Evening
Answer: C) Early morning
**Rationale: Watering in the early morning reduces evaporation and allows plants to
absorb water before the heat of the day.
3. Which pruning method removes dead or diseased branches to improve plant health?
A) Thinning
B) Heading
C) Sanitation
D) Shearing
, Answer: C) Sanitation
**Rationale: Sanitation pruning focuses on removing dead, diseased, or damaged
branches to prevent disease spread.
4. Which type of fertilizer releases nutrients slowly over time?
A) Liquid fertilizer
B) Water-soluble fertilizer
C) Controlled-release fertilizer
D) Foliar fertilizer
Answer: C) Controlled-release fertilizer
**Rationale: Controlled-release fertilizers slowly release nutrients over time,
providing consistent feeding and reducing nutrient runoff.
5. What is the main purpose of aerating soil in landscape maintenance?
A) Reduce soil compaction
B) Remove weeds
C) Increase sunlight penetration
D) Improve plant color
Answer: A) Reduce soil compaction
**Rationale: Aeration alleviates compacted soil, allowing better root growth and
water/nutrient infiltration.
6. When should cool-season grasses be fertilized for optimal growth?
A) Spring and fall
B) Summer only
C) Winter only
D) Fall and winter
Answer: A) Spring and fall
**Rationale: Cool-season grasses grow best in cooler temperatures; fertilizing in
spring and fall promotes healthy growth.
7. Which of the following is a common symptom of overwatering?
A) Leaf burn
B) Yellowing leaves
C) Slow growth due to lack of nutrients
D) Brown, dry leaves
Answer: B) Yellowing leaves
**Rationale: Overwatering can suffocate roots and lead to yellowing foliage due to
poor oxygen availability in the soil.
8. Which pest is most likely to damage turfgrass roots?
A) Aphids
B) Grubs
, C) Spider mites
D) Caterpillars
Answer: B) Grubs
**Rationale: Grubs feed on turfgrass roots, causing patches of dead or weakened
grass.
9. What is the best method to prevent soil erosion on slopes?
A) Frequent mowing
B) Mulching
C) Installing sod or groundcover
D) Applying fertilizer
Answer: C) Installing sod or groundcover
**Rationale: Groundcover stabilizes soil and reduces erosion by protecting it from
water runoff and wind.
10. Which tool is most effective for trimming small shrubs?
A) Hedge shears
B) Pruning saw
C) Loppers
D) Hand pruners
Answer: D) Hand pruners
**Rationale: Hand pruners are precise and ideal for small branches and detailed
trimming.
11. Which of the following is a sign of nitrogen deficiency in plants?
A) Purple leaves
B) Yellowing of older leaves
C) Leaf curling
D) White spots on leaves
Answer: B) Yellowing of older leaves
**Rationale: Nitrogen deficiency typically causes chlorosis, starting with older leaves,
as nitrogen is mobile within the plant.
12. What is the recommended mowing height for most cool-season turfgrasses?
A) 0.5–1 inch
B) 1–2 inches
C) 2–3 inches
D) 4–5 inches
Answer: C) 2–3 inches
**Rationale: Maintaining a 2–3 inch height helps grass develop deep roots, shade
soil, and reduce weed growth.
