©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Arborist ISA Study Guide Sample Test
Exam Questions and Answers 100%
Pass
Bark, phloem, cambium, xylem - ✔✔When cutting through a tree with a
chain saw or drilling into a tree, you would pass through (in order)
Growth may be stimulated in lateral buds - ✔✔If the terminal bud is
removed in pruning:
The growth rings of a tree: - ✔✔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.
Cambium - ✔✔layer of cells is responsible for outward growth and
increased girth of tree.
Mycorrhizae are: - ✔✔A symbiotic relationship between fungi and roots.
Douglas-fir (Pseudotsuga menziesii) differs from balsam fir (Abies
balsamea) in that: - ✔✔They are not in the same genus.
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Opposite leaf arrangement is: - ✔✔When two leaves and/or buds are
located at the same node on a twig.
Quercus rubra - ✔✔Scientific name of Red Oak.
Quercus (Oak) - ✔✔This genus of tree usually does not have an opposite
leaf arrangement.
Pines - ✔✔These conifers have needles in bundles.
Available oxygen and water - ✔✔The primary factor in controlling the
depth, spread, and distribution of tree roots in the soil is/are:
The most fibrous and absorptive portion of a tree's root system is found in?
- ✔✔Are in the upper 6 inches of soil.
Water will drain very slowly out of the planting hole. - ✔✔If a planting hole
in a clay soil site is backfilled with sandy soil.
When soil is compacted: - ✔✔Total pore space and the percentage of
macropores are reduced.
A characteristic of sandy soils in arid regions is: - ✔✔They tend to become
alkaline, and salts build up due to the lack of heavy rainfall.
When irrigating trees: - ✔✔Infrequent, deep soakings are preferable to
frequent, shallow waterings.
Arborist ISA Study Guide Sample Test
Exam Questions and Answers 100%
Pass
Bark, phloem, cambium, xylem - ✔✔When cutting through a tree with a
chain saw or drilling into a tree, you would pass through (in order)
Growth may be stimulated in lateral buds - ✔✔If the terminal bud is
removed in pruning:
The growth rings of a tree: - ✔✔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.
Cambium - ✔✔layer of cells is responsible for outward growth and
increased girth of tree.
Mycorrhizae are: - ✔✔A symbiotic relationship between fungi and roots.
Douglas-fir (Pseudotsuga menziesii) differs from balsam fir (Abies
balsamea) in that: - ✔✔They are not in the same genus.
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Opposite leaf arrangement is: - ✔✔When two leaves and/or buds are
located at the same node on a twig.
Quercus rubra - ✔✔Scientific name of Red Oak.
Quercus (Oak) - ✔✔This genus of tree usually does not have an opposite
leaf arrangement.
Pines - ✔✔These conifers have needles in bundles.
Available oxygen and water - ✔✔The primary factor in controlling the
depth, spread, and distribution of tree roots in the soil is/are:
The most fibrous and absorptive portion of a tree's root system is found in?
- ✔✔Are in the upper 6 inches of soil.
Water will drain very slowly out of the planting hole. - ✔✔If a planting hole
in a clay soil site is backfilled with sandy soil.
When soil is compacted: - ✔✔Total pore space and the percentage of
macropores are reduced.
A characteristic of sandy soils in arid regions is: - ✔✔They tend to become
alkaline, and salts build up due to the lack of heavy rainfall.
When irrigating trees: - ✔✔Infrequent, deep soakings are preferable to
frequent, shallow waterings.
