Question 1

Walk me through how you'd remove a tree that leans over a house.

Accepted Answer

This is the core of residential removal work. They want to hear a plan, not a guess, and a plan starts on the ground. Start with a full look at the tree: defects, decay, lean, dead wood and the targets underneath Pick a tie-in point that's sound and above the work, and explain how you'd test it Describe limbing from the top down and lowering pieces on a rigging line through a block or natural crotch Say how the ground worker controls the load with a lowering device and where the drop zone sits Mention when you'd call for a crane or bucket instead of climbing it

Question 2

What does a good pruning cut look like?

Accepted Answer

Pruning is what separates an arborist from a tree cutter. A wrong answer here tells them you'll damage their clients' trees. Cut just outside the branch collar, never flush to the trunk and never leaving a long stub Use a three-cut method on heavy limbs so the bark doesn't tear down the trunk, and describe the undercut Explain reduction cuts back to a lateral big enough to take over Say plainly that topping harms a tree and that you'd talk a client out of it

Question 3

What's in your daily gear inspection?

Accepted Answer

Worn gear kills climbers. They want to know you check it every time, not when you remember. Rope: cuts, glazing, core shots, stiff or flattened sections Saddle and lanyard: stitching, wear points, buckles and bridge Hardware: carabiner gates lock and close, no sharp edges or cracks What you do with suspect gear: tag it and take it out of service

Question 4

Tell me about a time you stopped work because something felt wrong.

Accepted Answer

The best crew members stop the job when conditions change. They want proof you'll speak up, including to a boss. Describe the specific trigger: hidden decay, a wire you hadn't seen, wind picking up, a bystander in the drop zone Say what you did in the moment and who you told Explain how the plan changed and how the job finished Keep it matter-of-fact, without making yourself the hero

Question 5

How do you work near power lines?

Accepted Answer

Electrical contact kills tree workers, often on jobs that looked routine. Unqualified workers must keep well clear, and they need to hear that you know the difference. Treat every line as energised until the utility says otherwise Say plainly if you're a qualified line clearance arborist or not Describe keeping yourself, your tools and the branches you cut outside the minimum approach distance Call the utility for a drop or a line clearance crew when the work is too close

Question 6

What climbing systems are you comfortable with?

Accepted Answer

Crews run different setups. They need to know what you can climb on today and what you'd need training on. Name what you've used: moving rope, stationary rope, spikes for removals, a lanyard for work positioning Say how you'd set a line with a throw bag and install a friction saver or canopy anchor Be honest about which systems you're still learning Mention a mechanical device or friction hitch you know well

Question 7

Would you spike a tree you're pruning?

Accepted Answer

It's a quick check on whether you understand tree health. Spikes wound living trees. No: climbing spikes are for removals or rescue, not pruning a tree that's staying Explain the damage spikes cause to living bark Say how you'd access the tree instead

Question 8

How would you do an aerial rescue?

Accepted Answer

Every climber on a crew should be able to reach and lower an injured coworker. It's often part of the skills test. Stop work, call it out and call emergency services first Check the hazards before you climb, including the one that hurt your coworker Describe your access method and how you'd transfer and lower the climber Mention when and where you last practised it

Question 9

How do you identify decay in a tree?

Accepted Answer

Reading defects is how you pick safe tie-ins and give clients honest advice. Look for fungal fruiting bodies, cavities, cracks, included bark and dead wood Sound the trunk with a mallet and listen for a hollow note Know common decay fungi in your area and what they mean for the wood Say when you'd call in a certified arborist or a tree risk assessment

Question 10

A homeowner wants you to top their tree. What do you say?

Accepted Answer

Arborists deal with clients all day. They want someone who can say no politely and still keep the sale. Explain in plain terms why topping leads to weak regrowth and decay Offer a reduction prune or crown thinning that meets the client's actual goal, like more light or less weight over the roof Know when a removal and replanting is the honest answer Check the company's policy before promising anything

Question 11

What would you do if the climber called a piece and your lowering line started to run away?

Accepted Answer

Ground workers control every rigged piece. This tests whether you understand friction and stay calm. Add a wrap on the lowering device or tighten your grip before the next piece Keep yourself out of the bight of the rope and clear of the swing path Call out to the climber and stop the next cut until the setup is fixed Explain how you'd pick the number of wraps next time based on the weight

Arborist interview questions and how to answer them

The 8 questions you will almost certainly get

A forgettable answer, and a better one

"Walk me through how you'd remove a tree that leans over a house."

"What does a good pruning cut look like?"

Questions to ask them

Need more Arborist interviews to prep for?

The question	What they want to know	Your angle
Walk me through how you'd remove a tree that leans over a house.	This is the core of residential removal work. They want to hear a plan, not a guess, and a plan starts on the ground.	Start with a full look at the tree: defects, decay, lean, dead wood and the targets underneath
What does a good pruning cut look like?	Pruning is what separates an arborist from a tree cutter. A wrong answer here tells them you'll damage their clients' trees.	Cut just outside the branch collar, never flush to the trunk and never leaving a long stub
What's in your daily gear inspection?	Worn gear kills climbers. They want to know you check it every time, not when you remember.	Rope: cuts, glazing, core shots, stiff or flattened sections
Tell me about a time you stopped work because something felt wrong.	The best crew members stop the job when conditions change. They want proof you'll speak up, including to a boss.	Describe the specific trigger: hidden decay, a wire you hadn't seen, wind picking up, a bystander in the drop zone
How do you work near power lines?	Electrical contact kills tree workers, often on jobs that looked routine. Unqualified workers must keep well clear, and they need to hear that you know the difference.	Treat every line as energised until the utility says otherwise
What climbing systems are you comfortable with?	Crews run different setups. They need to know what you can climb on today and what you'd need training on.	Name what you've used: moving rope, stationary rope, spikes for removals, a lanyard for work positioning
Would you spike a tree you're pruning?	It's a quick check on whether you understand tree health. Spikes wound living trees.	No: climbing spikes are for removals or rescue, not pruning a tree that's staying
How would you do an aerial rescue?	Every climber on a crew should be able to reach and lower an injured coworker. It's often part of the skills test.	Stop work, call it out and call emergency services first