ISA Arborist Chapter 13 with Correct Answers 2024
Name five ways that trees can be adversely affected by construction. - Answer -root injury
soil compaction
injury to trunk or branches
grade change
excavation/severing root system
When soil is compacted, the _______ _______ between soil particles is reduced. - Answer -pore space
The phases of land development are... - Answer -site clearing and demolition
rough grading
utility installation and grading
construction
final grading and landscape installation
If the soil grade on a construction site is _______, a large percentage of a tree's root system might be
removed. IF the grade is _______, the tree's roots might be suffocated. - Answer -lowered
raised
A technique used to reduce soil compaction around tees on a construction site is to spread a temporary,
thick layer of _______. - Answer -mulch
True/False - The overriding objective of an arborist involved in a development project is to save every
tree on the site. - Answer -false
True/False - It is better to tunnel directly under a tree than to cut directly across the root system of a tree
when excavating for utility lines. - Answer -true
An important action that should be taken at the start of a construction project is to erect _______
around all of the trees that are to remain. - Answer -fences/barriers
True/False - The largest, most mature trees are not always the best candidates for preservation. - Answer
-true
True/False - There is far more that an arborist can do to treat trees that have been damaged by
construction than to prevent the damage. - Answer -false
Name five ways that trees can be adversely affected by construction. - Answer -root injury
soil compaction
injury to trunk or branches
grade change
excavation/severing root system
When soil is compacted, the _______ _______ between soil particles is reduced. - Answer -pore space
The phases of land development are... - Answer -site clearing and demolition
rough grading
utility installation and grading
construction
final grading and landscape installation
If the soil grade on a construction site is _______, a large percentage of a tree's root system might be
removed. IF the grade is _______, the tree's roots might be suffocated. - Answer -lowered
raised
A technique used to reduce soil compaction around tees on a construction site is to spread a temporary,
thick layer of _______. - Answer -mulch
True/False - The overriding objective of an arborist involved in a development project is to save every
tree on the site. - Answer -false
True/False - It is better to tunnel directly under a tree than to cut directly across the root system of a tree
when excavating for utility lines. - Answer -true
An important action that should be taken at the start of a construction project is to erect _______
around all of the trees that are to remain. - Answer -fences/barriers
True/False - The largest, most mature trees are not always the best candidates for preservation. - Answer
-true
True/False - There is far more that an arborist can do to treat trees that have been damaged by
construction than to prevent the damage. - Answer -false
