ISA Arborist Study Guide Sample test questions with
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accurate answers ||
When cutting through a tree with a chain saw or drilling into a tree, you would pass
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through (in order) - ✔✔Bark, phloem, cambium, xylem
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If the terminal bud is removed in pruning: - ✔✔Growth may be stimulated in lateral buds
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Visible because of the rapid growth rate of earlywood relative to latewood, can be counted
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on to approximate trees age, can give information about growth conditions in previous
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years. - ✔✔The growth rings of a tree:
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layer of cells is responsible for outward growth and increased girth of tree. - ✔✔Cambium
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A symbiotic relationship between fungi and roots. - ✔✔Mycorrhizae are:
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They are not in the same genus. - ✔✔Douglas-fir (Pseudotsuga menziesii) differs from
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balsam fir (Abies balsamea) in that: || || || || ||
When two leaves and/or buds are located at the same node on a twig. - ✔✔Opposite leaf
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arrangement is: ||
Scientific name of Red Oak. - ✔✔Quercus rubra || || || || || || ||
This genus of tree usually does not have an opposite leaf arrangement. - ✔✔Quercus (Oak)
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, These conifers have needles in bundles. - ✔✔Pines
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The primary factor in controlling the depth, spread, and distribution of tree roots in the soil
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is/are: - ✔✔Available oxygen and water
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Are in the upper 6 inches of soil. - ✔✔The most fibrous and absorptive portion of a tree's
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root system is found in?
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If a planting hole in a clay soil site is backfilled with sandy soil. - ✔✔Water will drain very
|| || || || || || || || || || || || || || || || || || ||
slowly out of the planting hole.|| || || || ||
Total pore space and the percentage of macropores are reduced. - ✔✔When soil is
|| || || || || || || || || || || || || ||
compacted:
They tend to become alkaline, and salts build up due to the lack of heavy rainfall. - ✔✔A
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characteristic of sandy soils in arid regions is: || || || || || || ||
Infrequent, deep soakings are preferable to frequent, shallow waterings. - ✔✔When
|| || || || || || || || || || ||
irrigating trees: ||
Have a higher infiltration rate than clay soils. - ✔✔Sandy soils:
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Gravitational water has drained away. - ✔✔A soil is at field capacity when: || || || || || || || || || || || ||
Less frequent waterings of longer duration will reduce the likelihood of salt buildup, water
|| || || || || || || || || || || || || ||
hitting the soil surface can lead to crusting, application rates that exceed absorption can
|| || || || || || || || || || || || || ||
lead to runoff. - ✔✔With sprinkler irrigation:
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accurate answers ||
When cutting through a tree with a chain saw or drilling into a tree, you would pass
|| || || || || || || || || || || || || || || || ||
through (in order) - ✔✔Bark, phloem, cambium, xylem
|| || || || || || ||
If the terminal bud is removed in pruning: - ✔✔Growth may be stimulated in lateral buds
|| || || || || || || || || || || || || || ||
Visible because of the rapid growth rate of earlywood relative to latewood, can be counted
|| || || || || || || || || || || || || || ||
on to approximate trees age, can give information about growth conditions in previous
|| || || || || || || || || || || || ||
years. - ✔✔The growth rings of a tree:
|| || || || || || ||
layer of cells is responsible for outward growth and increased girth of tree. - ✔✔Cambium
|| || || || || || || || || || || || || ||
A symbiotic relationship between fungi and roots. - ✔✔Mycorrhizae are:
|| || || || || || || || ||
They are not in the same genus. - ✔✔Douglas-fir (Pseudotsuga menziesii) differs from
|| || || || || || || || || || || || ||
balsam fir (Abies balsamea) in that: || || || || ||
When two leaves and/or buds are located at the same node on a twig. - ✔✔Opposite leaf
|| || || || || || || || || || || || || || || || ||
arrangement is: ||
Scientific name of Red Oak. - ✔✔Quercus rubra || || || || || || ||
This genus of tree usually does not have an opposite leaf arrangement. - ✔✔Quercus (Oak)
|| || || || || || || || || || || || || ||
, These conifers have needles in bundles. - ✔✔Pines
|| || || || || || ||
The primary factor in controlling the depth, spread, and distribution of tree roots in the soil
|| || || || || || || || || || || || || || || ||
is/are: - ✔✔Available oxygen and water
|| || || || ||
Are in the upper 6 inches of soil. - ✔✔The most fibrous and absorptive portion of a tree's
|| || || || || || || || || || || || || || || || || ||
root system is found in?
|| || || ||
If a planting hole in a clay soil site is backfilled with sandy soil. - ✔✔Water will drain very
|| || || || || || || || || || || || || || || || || || ||
slowly out of the planting hole.|| || || || ||
Total pore space and the percentage of macropores are reduced. - ✔✔When soil is
|| || || || || || || || || || || || || ||
compacted:
They tend to become alkaline, and salts build up due to the lack of heavy rainfall. - ✔✔A
|| || || || || || || || || || || || || || || || || ||
characteristic of sandy soils in arid regions is: || || || || || || ||
Infrequent, deep soakings are preferable to frequent, shallow waterings. - ✔✔When
|| || || || || || || || || || ||
irrigating trees: ||
Have a higher infiltration rate than clay soils. - ✔✔Sandy soils:
|| || || || || || || || || ||
Gravitational water has drained away. - ✔✔A soil is at field capacity when: || || || || || || || || || || || ||
Less frequent waterings of longer duration will reduce the likelihood of salt buildup, water
|| || || || || || || || || || || || || ||
hitting the soil surface can lead to crusting, application rates that exceed absorption can
|| || || || || || || || || || || || || ||
lead to runoff. - ✔✔With sprinkler irrigation:
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