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ISA Certified Tree Climber (formerly Tree Worker Climber Specialist) — Practice Exam

Safety: practice questions

Our ISA Certified Tree Climber bank has 66 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1

What does OSHA advise a worker to do if an overhead power line falls near them or their equipment?

  1. Move away with short, shuffling steps, feet close together
  2. Run away from the line as quickly as possible with long strides
  3. Jump onto the vehicle and wait
  4. Lift the line clear with a dry branch
Show the answer

A. Move away with short, shuffling steps, feet close together — Keeping feet close together limits the step potential across the body.

Question 2

Which signs does the ISA outline list as indicating trunk or root decay?

  1. A heavy seed crop and dense foliage
  2. Straight trunk and even taper
  3. Crown dieback, fungal fruiting bodies, sloughing bark
  4. Heavy seed crops, dense dark-green foliage and vigorous new shoot growth
Show the answer

C. Crown dieback, fungal fruiting bodies, sloughing bark — Termites, boring insects and carpenter ants are also listed.

Question 3

Which ladders does OSHA's tree care guidance say may be used near overhead power lines?

  1. Wooden or synthetic (non-conductive) ladders only
  2. Aluminium ladders with rubber feet
  3. Any ladder, as long as it is kept at least 3 feet from the line
  4. Steel ladders that are grounded
Show the answer

A. Wooden or synthetic (non-conductive) ladders only — Never use metal or other conductive ladders near overhead power lines.

Question 4

Which hazard does the ISA outline list among local animals that present hazards to tree workers?

  1. Arboreal mammals, insects and reptiles
  2. Earthworms and other soil organisms disturbed when roots are exposed
  3. Songbird nests only
  4. Soil bacteria in the root zone
Show the answer

A. Arboreal mammals, insects and reptiles — Bees, snakes and other animals in the canopy can cause falls or injuries aloft.

Question 5

Which ISO standard does the ISA Tree Climber outline cite for chain saws used for tree service?

  1. ISO 11681-2
  2. ISO 9001 (quality management)
  3. ISO 14001
  4. ISO 45001
Show the answer

A. ISO 11681-2 — ISO 11681-2 covers portable chain saw safety requirements and testing for tree-service saws.

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