ISA CERTIFIED ARBORIST
PRACTICE EXAM 200
QUESTIONS
Question 1: Which vascular tissue primarily transports water and dissolved mineral nutrients upward from roots?
Choices:
1) Xylem 2) Phloem 3) Cork cambium 4) Pith
Correct Answer: Xylem
Explanation: Xylem conducts water and dissolved minerals from the root system toward stems and leaves, driven largely by transpiration and water-potential gradients.Page 1
Question 2: Which is the correct conventional format for a botanical binomial?
Choices:
1) Both genus and species capitalized 2) Genus capitalized and species lowercase 3) Genus lowercase and species capitalized 4) Both words written in all capitals
Correct Answer: Genus capitalized and species lowercase
Explanation: Scienti�c names use a capitalized genus and a lowercase speci�c epithet, conventionally italicized when typography allows.
Question 3: Which soil particle is largest?
Choices:
1) Silt 2) Clay 3) Sand 4) Humus
Correct Answer: Sand
Explanation: Sand particles are larger than silt and clay particles. Particle-size proportions strongly in�uence drainage, aeration, and water-holding behavior.Page 2
Question 4: When planting a typical landscape tree, where should the �rst major structural roots and trunk �are generally end up?
Choices:
1) 30 cm below �nal grade 2) Completely covered by mulch 3) At the bottom of a deep planting basin 4) At or slightly above �nal grade
Correct Answer: At or slightly above �nal grade
Explanation: The root �are should remain visible at or near grade. Planting too deeply can reduce root-zone oxygen and place trunk tissues in prolonged contact with soil.Question 5: A pruning speci�cation should begin by identifying what?
Choices:
1) The pruning objective 2) The color of the chipper 3) The age of the crew truck 4) The brand of chainsaw
Correct Answer: The pruning objective
Explanation: A clear objective such as structural development, clearance, risk mitigation, or size management guides what branches should be removed and how much foliage should be retained.Page 3