CTSP Hazard and Risk Assessment 2

Question 1

When assessing a tree near a target, which factor MOST directly determines risk magnitude?

Accepted Answer

Likelihood of failure multiplied by consequences

Answer

Risk magnitude is determined by multiplying the likelihood of failure by the consequences if failure occurs.

Question 2

A tree arborist notices a co-dominant stem with included bark. Which term best describes this structural defect?

Accepted Answer

Weak attachment

Answer

Included bark between co-dominant stems creates a weak attachment point that significantly increases failure potential.

Question 3

Which inspection method is most appropriate for detecting internal decay that is not visible externally?

Accepted Answer

Resistograph or sonic tomography

Answer

Instruments like the Resistograph and sonic tomography can detect internal decay columns not apparent during visual inspection.

Question 4

A large dead branch over a playground is identified. According to ANSI A300 Part 9, what is the appropriate risk category when likelihood of failure is high and consequences are severe?

Accepted Answer

Extreme risk

Answer

High likelihood of failure combined with severe consequences (occupied target) places a hazard in the Extreme risk category.

Question 5

Which of the following site conditions increases the likelihood of tree failure during a wind event?

Accepted Answer

Saturated soil with shallow root plate

Answer

Saturated soil weakens root anchorage, making trees far more susceptible to windthrow during storms.

CTSP - Certified Treecare Safety Professional Practice Test

CTSP - Certified Treecare Safety Professional Practice Test

CTSP Hazard and Risk Assessment 2