TRAQ
Cankers are more likely to affect tree stability if - answer more than one-third of the tree
or branch circumference is affected.
Standard of care is measured by using - answer the best management practices,
applicable industry standards, and training courses
To estimate likelihood of impact the arborist should attempt to determine - answer the
occupancy rate of targets within the target zone
factors that could affect the direction of the trees fall
factors that could protect the target
all of the above
Type of stress caused by a twisting motion is called - answerTorsion
Tree risk assessors should inform clients that - answertree risk assessments represent
the condition of the tree at the time of inspection
A tree in which a failure has started or is most likely to occur in the near future even if
there is no significant wind or increased load, would be categorized with a likelihood of
failure of - answerimminent
Level 3 assessments are generally more time Intensive and more expensive than Level
2 assessments because - answerthey require specialized equipment data collection and
analysis, and/or expertise
Risk assessment should include residual risk after mitigation t - answerhelp the risk
manager in decision-making to achieve acceptable risk levels
Response growth develops as a result of - answerthe repeated deformation of cambium
and new wood cells due to loading
Which of the following is a visual indicator of compensation of root/soil defects? -
answerwide root flare
Compression or extension of new wood cells under bending loads is greater than the
deformation experienced by inner wood cells because - answerouter cells experience
the greatest torsional, compressive, and tension stress
, Risk is evaluated by categorizing or quantifying the risk and then - answerquantifying
the consequences of impacting a given target
The two natural forces that exert loads on trees are - answergravity and wind
When the size of a branch is less than one-half the diameter of the parent stem -
answerthe branch union is likely to be strong if it contains no defects
Dead branches do not necessarily represent imminent failure because - answersome
tree species retain dead branches for many years
Which of the following is NOT a true statement about brown rot? - answerbrown rots
decrease wood rigidity, but the wood remains flexible
The process of identifying trees, assessing them for risk, determining and applying
mitigation options, and maintaining an ongoing monitoring system is referred to as -
answertree risk management
Flexibility and strength in tension wood comes from - answercellulose
Woundwood is produced in response to - answercambial damage
Which of the following is NOT an advanced assessment technique? - answerusing a
probe to investigate cavities
When pruning is recommended to mitigate risk, you should consider the ability of the
tree to - answercompartmentalize and limit decay
recover from loss of leaf area
Sprout from latent buds and develop new leaf area
all of the above
Tree risk assessors should consider tree removal as a last resort to eliminate risk
because - answertrees offer many benefits that are lost when they are removed
there may be other options to reduce the likelihood of failure
there may be ways to reduce the likelihood of impacting targets
all of the above
A general term for various types of new wood produced in response to damage or loads
in order to compensate for higher strain (deformation in the cambium and outer wood
cells is called - answerresponse growth
Cankers are more likely to affect tree stability if - answer more than one-third of the tree
or branch circumference is affected.
Standard of care is measured by using - answer the best management practices,
applicable industry standards, and training courses
To estimate likelihood of impact the arborist should attempt to determine - answer the
occupancy rate of targets within the target zone
factors that could affect the direction of the trees fall
factors that could protect the target
all of the above
Type of stress caused by a twisting motion is called - answerTorsion
Tree risk assessors should inform clients that - answertree risk assessments represent
the condition of the tree at the time of inspection
A tree in which a failure has started or is most likely to occur in the near future even if
there is no significant wind or increased load, would be categorized with a likelihood of
failure of - answerimminent
Level 3 assessments are generally more time Intensive and more expensive than Level
2 assessments because - answerthey require specialized equipment data collection and
analysis, and/or expertise
Risk assessment should include residual risk after mitigation t - answerhelp the risk
manager in decision-making to achieve acceptable risk levels
Response growth develops as a result of - answerthe repeated deformation of cambium
and new wood cells due to loading
Which of the following is a visual indicator of compensation of root/soil defects? -
answerwide root flare
Compression or extension of new wood cells under bending loads is greater than the
deformation experienced by inner wood cells because - answerouter cells experience
the greatest torsional, compressive, and tension stress
, Risk is evaluated by categorizing or quantifying the risk and then - answerquantifying
the consequences of impacting a given target
The two natural forces that exert loads on trees are - answergravity and wind
When the size of a branch is less than one-half the diameter of the parent stem -
answerthe branch union is likely to be strong if it contains no defects
Dead branches do not necessarily represent imminent failure because - answersome
tree species retain dead branches for many years
Which of the following is NOT a true statement about brown rot? - answerbrown rots
decrease wood rigidity, but the wood remains flexible
The process of identifying trees, assessing them for risk, determining and applying
mitigation options, and maintaining an ongoing monitoring system is referred to as -
answertree risk management
Flexibility and strength in tension wood comes from - answercellulose
Woundwood is produced in response to - answercambial damage
Which of the following is NOT an advanced assessment technique? - answerusing a
probe to investigate cavities
When pruning is recommended to mitigate risk, you should consider the ability of the
tree to - answercompartmentalize and limit decay
recover from loss of leaf area
Sprout from latent buds and develop new leaf area
all of the above
Tree risk assessors should consider tree removal as a last resort to eliminate risk
because - answertrees offer many benefits that are lost when they are removed
there may be other options to reduce the likelihood of failure
there may be ways to reduce the likelihood of impacting targets
all of the above
A general term for various types of new wood produced in response to damage or loads
in order to compensate for higher strain (deformation in the cambium and outer wood
cells is called - answerresponse growth
