Specialist Practice Exam Questions And

ISA Certified Tree Worker Climber Specialist Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following is the primary purpose of a climbing line in tree

work?

• Transporting tools
• Anchoring the tree
• Supporting the climber
• Felling the tree

Rationale: The climbing line is primarily used to support the climber

safely while ascending, descending, and working in the tree.

• What is the safest method for ascending a tree using a rope?
• Free climbing without equipment 1 / 4

• Using a climbing rope and friction hitch
• Pulling oneself by the branches
• Jumping from the ground to grab a limb

Rationale: A friction hitch provides controlled movement and reduces

the risk of falls, making it the standard for rope ascension.

• Which climbing technique allows the climber to move both up and

down efficiently?

• Pole climbing
• Ladder climbing
• Single rope technique (SRT)
• Free climbing

Rationale: SRT allows controlled ascent and descent on a single rope,

widely used in professional arboriculture.

• What is the purpose of a friction hitch in tree climbing?
• To cut branches
• To measure tree height
• To control rope movement
• To anchor the tree

Rationale: Friction hitches grip the rope when weighted and slide

when adjusted, providing safe movement.

• Which of the following is a key consideration when selecting a

climbing rope?

• Rope color 2 / 4

• Rope brand
• Rope strength and elongation properties
• Rope length only

Rationale: Rope selection must consider tensile strength, elongation,

and abrasion resistance to ensure safety.

• What is the recommended minimum PPE for tree climbing?
• Gloves and hat
• Helmet, eye protection, gloves, and climbing harness
• Boots and sunglasses
• T-shirt and jeans

Rationale: Proper PPE protects climbers from falls, flying debris, and

impact injuries.

• Which type of knot is commonly used for tying a friction hitch?
• Bowline
• Square knot
• Prusik knot
• Reef knot

Rationale: The Prusik knot grips the rope when weighted and slides

when unweighted, ideal for friction hitches.

• What is the primary reason for using a throw line in arboriculture?
• Cleaning debris
• To position climbing lines in high branches
• Pulling down limbs 3 / 4

• Measuring tree height

Rationale: A throw line allows climbers to accurately place climbing

lines over high branches without directly climbing.

• When is a pole pruner most appropriate?
• For climbing tall trees
• For pruning branches within reach from the ground
• For cutting trunks
• For rigging large limbs

Rationale: Pole pruners extend reach from the ground and reduce the

need to climb for small branches.

• Which part of the tree provides structural support for climbing

anchors?

• Roots
• Leaves
• Branch crotches and trunk
• Bark only

Rationale: Strong branch crotches and the trunk provide reliable

anchorage for climbing lines.

• What is the recommended climbing line angle to minimize

friction and abrasion?

• 0 degrees
• 45 degrees
• 90 degrees
• / 4