CATS Arborist Albuquerque Risk & Safety 2

Question 1

When assessing a tree near a structure in Albuquerque's high-wind zone, which defect most significantly increases failure risk?

Accepted Answer

Co-dominant stems with included bark

Answer

Co-dominant stems with included bark create a structural weakness that dramatically increases the likelihood of stem failure under wind loading.

Question 2

Under ANSI Z133 standards, what is the minimum safe approach distance from an energized power line for an aerial lift operator?

Accepted Answer

10 feet

Answer

ANSI Z133 requires a minimum 10-foot approach distance from energized lines up to 50kV for aerial lift operations.

Question 3

A tree removal crew in Albuquerque identifies a dead snag with a DBH of 24 inches. What is the primary risk factor to evaluate before felling?

Accepted Answer

Decay extent and structural integrity

Answer

Decay extent determines unpredictable failure modes in dead snags, making structural integrity assessment the primary safety concern before felling.

Question 4

Which OSHA regulation specifically governs tree care worker safety and references ANSI Z133?

Accepted Answer

29 CFR 1910.268

Answer

29 CFR 1910.268 covers telecommunications work and references ANSI Z133 as the applicable standard for tree care operations near utility lines.

Question 5

In Albuquerque's desert climate, which condition most commonly weakens tree wood structure over time and elevates risk?

Accepted Answer

Drought stress leading to internal decay pathways

Answer

Prolonged drought stress in Albuquerque weakens tree defenses against decay fungi and boring insects, creating internal decay pathways that compromise structural integrity.

(CATS) Certified Arborist Tree Service of Albuquerque Practice Test

(CATS) Certified Arborist Tree Service of Albuquerque Practice Test

CATS Arborist Albuquerque Risk & Safety 2