QAC Category B Landscape Maintenance Exam
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Answers) Plus Rationale 2027 Q&A| Instant
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1. Which practice is most effective for maintaining healthy turf while
conserving water?
A. Irrigating lightly every day
B. Mowing extremely short
C. Watering deeply and infrequently when needed
D. Applying fertilizer before every irrigation
Deep, infrequent irrigation encourages deeper root development and
can improve drought tolerance. Frequent shallow watering tends to
produce shallow roots and can increase disease problems.
2. What is the primary purpose of mulch around landscape plants?
A. Increase soil compaction
B. Conserve moisture and suppress weeds
,C. Prevent all insect activity
D. Replace the need for irrigation
Organic mulch helps reduce evaporation, moderate soil temperature,
suppress competing weeds, and gradually add organic matter as it
decomposes.
3. When should most landscape shrubs be pruned to remove dead
or diseased branches?
A. Only during winter
B. Only immediately after fertilization
C. As soon as the problem is identified, using proper pruning practices
D. After the branches have completely decomposed
Dead or diseased branches can harbor pathogens and should
generally be removed promptly. Proper cuts should be made without
unnecessarily damaging healthy tissue.
4. What is the proper general mowing height for cool-season turf
compared with extremely short mowing?
A. Always less than 1/2 inch
B. A height appropriate to the turf species, generally avoiding
excessive removal of leaf tissue
,C. As short as possible
D. Determined only by the mower's engine size
Mowing requirements vary by turf species, but removing excessive
leaf tissue at one time stresses the plant. Maintaining an appropriate
height supports photosynthesis and root health.
5. Which tool is commonly used to check whether a soil irrigation
zone is receiving adequate moisture?
A. Screwdriver used as a thermometer
B. Paint scraper
C. Soil moisture meter or soil probe
D. Hedge shears
A soil probe or moisture meter can help determine moisture
conditions below the surface, where roots are located. This is more
reliable than judging irrigation solely from surface appearance.
6. What is the main reason for sharpening mower blades regularly?
A. To increase fuel consumption
B. To reduce mowing frequency to zero
C. To produce clean cuts and reduce turf injury
D. To increase grass height
, Sharp blades cut grass cleanly. Dull blades tear leaf tissue, creating
ragged wounds that can increase stress and make turf appear brown
or frayed.
7. Which condition is most likely to result from excessive irrigation?
A. Improved drainage
B. Root oxygen deficiency and increased disease risk
C. Reduced soil moisture
D. Elimination of all weeds
Overwatering fills soil pore spaces with water and reduces available
oxygen. Saturated conditions can impair roots and favor certain
diseases.
8. What is the purpose of aerating compacted turf soil?
A. To eliminate all microorganisms
B. To improve air, water, and root movement through the soil
C. To increase thatch thickness
D. To prevent roots from growing
Core or other appropriate aeration methods create channels through
compacted soil. This improves gas exchange, infiltration, and access to
the root zone.
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A| Instant
Download Pdf
1. Which practice is most effective for maintaining healthy turf while
conserving water?
A. Irrigating lightly every day
B. Mowing extremely short
C. Watering deeply and infrequently when needed
D. Applying fertilizer before every irrigation
Deep, infrequent irrigation encourages deeper root development and
can improve drought tolerance. Frequent shallow watering tends to
produce shallow roots and can increase disease problems.
2. What is the primary purpose of mulch around landscape plants?
A. Increase soil compaction
B. Conserve moisture and suppress weeds
,C. Prevent all insect activity
D. Replace the need for irrigation
Organic mulch helps reduce evaporation, moderate soil temperature,
suppress competing weeds, and gradually add organic matter as it
decomposes.
3. When should most landscape shrubs be pruned to remove dead
or diseased branches?
A. Only during winter
B. Only immediately after fertilization
C. As soon as the problem is identified, using proper pruning practices
D. After the branches have completely decomposed
Dead or diseased branches can harbor pathogens and should
generally be removed promptly. Proper cuts should be made without
unnecessarily damaging healthy tissue.
4. What is the proper general mowing height for cool-season turf
compared with extremely short mowing?
A. Always less than 1/2 inch
B. A height appropriate to the turf species, generally avoiding
excessive removal of leaf tissue
,C. As short as possible
D. Determined only by the mower's engine size
Mowing requirements vary by turf species, but removing excessive
leaf tissue at one time stresses the plant. Maintaining an appropriate
height supports photosynthesis and root health.
5. Which tool is commonly used to check whether a soil irrigation
zone is receiving adequate moisture?
A. Screwdriver used as a thermometer
B. Paint scraper
C. Soil moisture meter or soil probe
D. Hedge shears
A soil probe or moisture meter can help determine moisture
conditions below the surface, where roots are located. This is more
reliable than judging irrigation solely from surface appearance.
6. What is the main reason for sharpening mower blades regularly?
A. To increase fuel consumption
B. To reduce mowing frequency to zero
C. To produce clean cuts and reduce turf injury
D. To increase grass height
, Sharp blades cut grass cleanly. Dull blades tear leaf tissue, creating
ragged wounds that can increase stress and make turf appear brown
or frayed.
7. Which condition is most likely to result from excessive irrigation?
A. Improved drainage
B. Root oxygen deficiency and increased disease risk
C. Reduced soil moisture
D. Elimination of all weeds
Overwatering fills soil pore spaces with water and reduces available
oxygen. Saturated conditions can impair roots and favor certain
diseases.
8. What is the purpose of aerating compacted turf soil?
A. To eliminate all microorganisms
B. To improve air, water, and root movement through the soil
C. To increase thatch thickness
D. To prevent roots from growing
Core or other appropriate aeration methods create channels through
compacted soil. This improves gas exchange, infiltration, and access to
the root zone.
