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

Tree species and age

Answer

Distance from the target to the tree

Answer

Time of year the inspection 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

Basal decay

Answer

Crown dieback

Answer

Epicormic growth

Question 3

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

Accepted Answer

Resistograph or sonic tomography

Answer

Visual crown assessment

Answer

Increment boring only

Answer

Bark color evaluation

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

Low risk

Answer

Moderate risk

Answer

High risk

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

Deep, well-drained loam soil

Answer

South-facing slope with full sun

Answer

Compacted gravel under the drip line

Question 6

What does the term 'target' refer to in a tree risk assessment?

Accepted Answer

People, property, or activities that could be injured or damaged

Answer

The specific branch most likely to fail

Answer

The zone where pruning cuts should be made

Answer

The primary pest or disease affecting the tree

Question 7

An arborist observes carpenter ant activity at the base of an otherwise healthy-looking tree. What should be the next assessment step?

Accepted Answer

Probe and sound the base for internal decay

Answer

Immediately remove the tree

Answer

Apply a systemic insecticide

Answer

Document and re-inspect in one year