CTSP Risk Assessment 3

Question 1

A risk assessment matrix typically combines which two primary factors to determine overall risk rating?

Accepted Answer

Likelihood of failure and consequences of failure

Answer

The ISA risk matrix crosses likelihood of failure with consequences of failure to produce an overall risk rating.

Question 2

Which of the following is an example of a dynamic load that increases tree risk?

Accepted Answer

High wind gusts

Answer

High wind gusts are a dynamic, time-varying force that dramatically increase the risk of tree failure.

Question 3

What does 'occupancy rate' refer to in tree risk assessment?

Accepted Answer

How frequently the target zone is occupied by people or vehicles

Answer

Occupancy rate describes how often a target (person, vehicle, structure) is present in the impact zone.

Question 4

A CTSP observes a mushroom fruiting body (conk) at the base of an elm tree. What is the most appropriate interpretation?

Accepted Answer

It indicates active root or butt rot, raising structural concern

Answer

Conks at the base indicate active decay fungi breaking down root or butt wood, which can seriously compromise stability.

Question 5

In the ANSI A300 risk management framework, which action is most appropriate for a tree rated as 'extreme' risk?

Accepted Answer

Take immediate mitigating action (removal or pruning)

Answer

Extreme risk trees require immediate action—typically removal or significant corrective pruning—to eliminate the hazard.

CTSP - Certified Treecare Safety Professional Practice Test