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ISA Arborist Certification Exam Questions with complete solution 2023
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ISA Arborist Certification Exam
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ISA Arborist Certification ExamOne way to determine how good the drainage is in a potential planting area is to:
A. Test the soil pH
B. Use an air excavation device to loosen the soil
C. Perform a water percolation test
D. Any of the above - correct answer C. Perform a water percolation test
The major water-conducting cells in angiosperms are the:
A. Tracheids
B. Fibers
C. Parenchyma cells
D. Vessels - correct answer D. Vessels
Carbon sequestration occurs:
A. During photosynthesis
B. As emissions from vehicles are reduced
C. As sunlight combines with air pollution
D. As wood decays - correct answer A. During photosynthesis
Armillaria mushrooms are often an indicator of:
A. Poor soil biology
B. Stressed trees
C. Root decay
D. All of the above - correct answer D. All of the above
A landscape architect has designed a shaded nature walk behind a preschool. Which of
the following would not be a good tree quality in this space?
A. Attractive fall coloring
B. Abundant fruiting
C. Broad, deciduous canopy
D. All of the above - correct answer B. Abundant fruiting
A spring pole refers to:
A. New growth on a tree or shrub after bud break.
B. A pole saw or pruner used in spring, designed to minimize damage to sloughing bark.
C. A tree trunk that has had all its branches removed.
D. A pinned branch or small tree under tension by fallen trees. - correct answer D. A
pinned branch or small tree under tension by fallen trees.
The branch collar is formed:
A. By the annual process by which tissue is layered where the branch and stem meet
B. Only in thick-barked trees, where bark has built up around a union
C. Only when branches die without falling, causing the tree to start to build a collar
along the dead branch
, D. At the internodes, due to twig elongation - correct answer A. By the annual process
by which tissue is layered where the branch and stem meet
When pruning a young tree, one reason to leave temporary branches that are lower
than the lowest permanent branch is:
A. They help provide energy to the trunk.
B. They contribute to proper taper development.
C. They provide shade to the young trunk tissue.
D. All of the above - correct answer D. All of the above
Which pruning system is started with a series of heading cuts, followed by annual sprout
removal?
A. Pollarding
B. Topiary
C. Natural
D. Espalier - correct answer A. Pollarding
A significant number of small, fruiting bodies along a branch indicates:
A. Sapwood rot
B. Heartwood rot
C. Basal rot
D. White rot - correct answer A. Sapwood rot
When felling a tree, the escape path should be:
A. At a 45-degree angle, away from the direction of fall
B. At a 45-degree angle, toward the direction of fall
C. Opposite the direction of fall
D. Toward the direction of fall - correct answer A. At a 45-degree angle, away from the
direction of fall
All of the following are recommendations for supporting a healthy landscape except:
A. Purchasing a diverse selection of pest-resistant plant species B. Selecting healthy
nursery stock
C. Pre-treating with a broad-spectrum pesticide before mulching D. All of the above -
correct answer C. Pre-treating with a broad-spectrum pesticide before mulching
The cork cambium combined with the external layer of bark are collectively called the:
A. Periderm
B. Paradox
C. Cambiderm
D. Cambium - correct answer A. Periderm
All of the following are deciduous conifers except:
A. Bald cypress (Taxodium distichum)
B. Tamarach (Larix laricina)
C. Dawn redwood (Metasequoia glyptostroboides)
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