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Question 1
A mature oak shows interveinal chlorosis on the youngest leaves while the veins remain green, and a soil test reveals a pH of 8.1 on a calcareous urban fill. Which abiotic disorder is the most likely cause?
Correct Answer:
Iron (Fe) deficiency induced by high soil pH
Question 2
Girdling roots that wrap around the base of a tree most directly cause decline by which mechanism?
Correct Answer:
Compressing vascular tissue and restricting water transport
Question 3
A street tree planted in a 1.2 m (4 ft) wide tree pit surrounded by pavement shows progressive crown dieback over several years with no pathogen present. The MOST probable abiotic stressor is:
Correct Answer:
Restricted rooting volume and compaction limiting water and oxygen
Question 4
Frost cracks (radial bark splits) on the southwest side of thin-barked trees in winter are best explained by:
Correct Answer:
Rapid temperature differential causing differential wood contraction
Question 5
Marginal leaf scorch with a sharp boundary between green and brown tissue, appearing first on the windward and upper crown during a hot dry spell, most strongly indicates:
Correct Answer:
Abiotic drought and high evaporative demand on exposed crown
Question 1
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About this Exam

Prepare with the ISA BCMA Practice Questions - ISA Board Certified Master Arborist (BCMA) Exam practice quiz. This question bank includes 100 questions covering tree, soil, because, planting, and arborist. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ISA BCMA Practice Questions - ISA Board Certified Master Arborist (BCMA) Exam

This practice set contains 100 questions from the matching question bank and focuses on tree, soil, because, planting, and arborist. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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