ISA Certified Arborist Exam Verified Questions and Answers

ISA Certified Arborist Exam Verified Questions and Answers ISA Certified Arborist Exam Verified Questions and Answers ISA Certified Arborist Exam Verified Questions and Answers 1. One 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 ANS : C. Perform a water percolation test 2. The major water-conducting cells in angiosperms are the: A. Tracheids B. Fibers C. Parenchyma cells D. Vessels ANS : D. Vessels 3. Carbon sequestration occurs: A. During photosynthesis B. As emissions from vehicles are reduced C. As sunlight combines with air pollution D. As wood decays ANS : A. During photosynthesis 4. Armillaria mushrooms are often an indicator of: A. Poor soil biology B. Stressed trees C. Root decay D. All of the above ANS : D. All of the above 5. 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 ANS : B. Abundant fruiting 6. 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. ANS : D. A pinned branch or small tree under tension by fallen trees. 7. 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 ANS : A. By the annual process by which tissue is layered where the branch and stem meet 8. 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 ANS : D. All of the above 9. Which pruning system is started with a series of heading cuts, followed by annual sprout removal? A. Pollarding B. Topiary C. Natural D. Espalier ANS : A. Pollarding 10. A significant number of small, fruiting bodies along a branch indicates: A. Sapwood rot B. Heartwood rot C. Basal rot D. White rot ANS : A. Sapwood rot 11. 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 ANS : A. At a 45-degree angle, away from the direction of fall 12. All of the following are recommendations for supporting a healthy land- scape 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 ANS : C. Pre-treating with a broad-spectrum pesticide before mulching 13. The cork cambium combined with the external layer of bark are collectively called the: A. Periderm B. Paradox C. Cambiderm D. Cambium ANS : A. Periderm 14. All of the following are deciduous conifers except: A. Bald cypress (Taxodium distichum) B. Tamarach (Larix laricina) C. Dawn redwood (Metasequoia glyptostroboides) D. Deodar cedar (Cedrus deodara) ANS : D. Deodar cedar (Cedrus deodara) 15. Brush chippers should be fed with: A. The butt end of the branch first B. The brush end of the branch first C. The worker standing street side D. The worker standing in front of the infeed hopper ANS : A. The butt end of the branch first 16. Why is it more beneficial to maintain large, mature trees than to replace them with a larger quantity of small trees? A. Large trees are more resistant to pests. B. Large trees provide more benefits than small trees. C. Trees cost more to plant than they do to prune. D. All of the above ANS : B. Large trees provide more benefits than small trees. 17. Which soil aggregate structure type would have the most problems related to slow water drainage? A. Platy B. Spongy C. Granular D. Angular ANS : A. Platy 18. What is the term for applying compost to the soil over turf? A. Topdressing B. Hydraulic fracturing C. Vertical mulching D. Soil renovation ANS : A. Topdressing 19. If a leaf were missing its cuticle, it would: A. Turn chlorotic, due to nutrient loss B. Expand, due to respiration C. Shrivel, due to desiccation D. Become upright, due to increased turgor pressure ANS : C. Shrivel, due to desic- cation 20. Which cut decreases the length of the larger branch or stem back to a smaller, live lateral branch (also called "subordinating")? A. Removal cut B. Reduction cut C. Heading cut D. Shearing cut ANS : B. Reduction cut