ISA Certified Arborist Exam Prep 2025-2026| Arborist Test with
125 Questions and Detailed Solutions; for the International
Society of Arboriculture's Certified Arborist Certification
Examination
100% Correct 125
Incorrect 00
Next steps
By Wiseman
1 of
125
Ter
m
Disadvantages to sprinkler irrigation are high application rates and
surface __________________ created by the water hitting the soil
surface.
Give this one a try
later!
salinization compaction
, waterlogging erosion
Don't know?
2 of 125
Term
Most of the fine, absorbing roots are typically found near the soil
surface because
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roots grow where conditions roots grow deeper to access
are favorable nutrients
roots avoid competition from other
plants roots thrive in compacted soil
Don't know?
, 3 of 125
Term
True/False - Soil can hold water so tightly in micropores that the
ability of tree roots to absorb the water is restricted.
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cations pH
true nitrogen
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4 of 125
Term
True/False - In most instances, it is preferable to minimize
water irrigation directly to the foliage of plants.
Give this one a try later!
false nitrogen
, true high
Don't know?
5 of 125
Term
Trees take up essential elements, dissolved in ________, through the roots
Give this one a try later!
oxygen carbon dioxide
nitrogen gas water
Don't know?
6 of 125
Term
The majority of the fine, absorbing roots of a tree are in the_____and
_____ horizons.
Give this one a try later!
125 Questions and Detailed Solutions; for the International
Society of Arboriculture's Certified Arborist Certification
Examination
100% Correct 125
Incorrect 00
Next steps
By Wiseman
1 of
125
Ter
m
Disadvantages to sprinkler irrigation are high application rates and
surface __________________ created by the water hitting the soil
surface.
Give this one a try
later!
salinization compaction
, waterlogging erosion
Don't know?
2 of 125
Term
Most of the fine, absorbing roots are typically found near the soil
surface because
Give this one a try later!
roots grow where conditions roots grow deeper to access
are favorable nutrients
roots avoid competition from other
plants roots thrive in compacted soil
Don't know?
, 3 of 125
Term
True/False - Soil can hold water so tightly in micropores that the
ability of tree roots to absorb the water is restricted.
Give this one a try later!
cations pH
true nitrogen
Don't know?
4 of 125
Term
True/False - In most instances, it is preferable to minimize
water irrigation directly to the foliage of plants.
Give this one a try later!
false nitrogen
, true high
Don't know?
5 of 125
Term
Trees take up essential elements, dissolved in ________, through the roots
Give this one a try later!
oxygen carbon dioxide
nitrogen gas water
Don't know?
6 of 125
Term
The majority of the fine, absorbing roots of a tree are in the_____and
_____ horizons.
Give this one a try later!
