CATS CATS - Certified Arborist Tree Service of Albuquerque Tree Climbing and Aerial Rescue Questions and Answers 2

Question 1

What is the ANSI Z133 minimum approach distance non-qualified arborists must maintain from energized power lines up to 50 kV?

Accepted Answer

Ten feet minimum approach distance

Answer

Two feet minimum clearance

Answer

No special clearance is required

Answer

Contact the utility only for lines over 100 kV

Question 2

What does 'work positioning' mean in aerial tree work?

Accepted Answer

Using the climbing system to support body weight so both hands are free for tools

Answer

Selecting the best ground-level viewing position before climbing

Answer

Deciding which branch to stand on during the climb

Answer

Positioning ground crew for optimal debris catching

Question 3

Why should an arborist never position themselves directly beneath a heavy limb being removed?

Accepted Answer

The limb can fall unpredictably and cause a fatal struck-by injury

Answer

It blocks sunlight needed to see the cut clearly

Answer

It is considered disrespectful to the tree

Answer

It violates local Albuquerque union work rules

Question 4

What is the purpose of establishing a 'work zone' during aerial tree operations?

Accepted Answer

To create a clear exclusion area below the climber protecting ground crew and bystanders

Answer

To define the climber's permitted range of movement in the canopy

Answer

To mark underground utilities before the crew begins work

Answer

To designate a parking area for company vehicles

Question 5

What does ANSI Z133 require regarding a chainsaw when it is not in active use aloft?

Accepted Answer

The saw must be secured by a separate tether or lanyard

Answer

The saw can be set on a stable branch temporarily

Answer

The saw must be shut off completely after each individual cut

Answer

Hand saws must replace chainsaws above 20 feet

Question 6

What is a 'redirect' in tree climbing?

Accepted Answer

A secondary rope attachment that changes the rope's direction to improve the climber's positioning

Answer

A type of rescue knot used in emergencies

Answer

A ground-level anchor point for the main climbing line

Answer

A hand signal used to communicate with ground crew