VIP Exclusive
ISA Certified Arborist VIP Practice Exam
ISA — The ISA Certified Arborist exam is administered by the International Society of Arboriculture (ISA); the real exam consists of approximately 200 multiple-choice questions administered over 4 hours, covering domains including tree biology, soil management, pruning, diagnosis, risk assessment, cabling, lightning protection, removal, and safe work practices.
59
Questions
90m
Time Limit
75.00%
To Pass
Question 1 of 59👑 VIP
A mature silver maple (Acer saccharinum) in a residential landscape shows early leaf drop, undersized leaves in the upper crown, and chlorotic foliage along the branch tips. The homeowner reports that a sewer line was replaced last spring and the trench ran approximately 8 feet from the trunk on the south side. Which physiological mechanism best explains the observed symptoms?
Questions 2–59 and full explanations are VIP-exclusive.