ISA Arborist Study exam 2023 with 100% correct answers
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Course
ISA
Institution
ISA
Bark, phloem, cambium, xylem - correct answer -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 - correct answer -If the terminal bud is removed in pruning:
The growth rings of a tree: - correct an...
ISA Arborist Study exam 2023 with 100%
correct answers
Bark, phloem, cambium, xylem - correct answer -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 - correct answer -If the terminal bud is removed in pruning:
The growth rings of a tree: - correct answer -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 - correct answer -layer of cells is responsible for outward growth and increased girth of tree.
Mycorrhizae are: - correct answer -A symbiotic relationship between fungi and roots.
Douglas-fir (Pseudotsuga menziesii) differs from balsam fir (Abies balsamea) in that: - correct answer -
They are not in the same genus.
Opposite leaf arrangement is: - correct answer -When two leaves and/or buds are located at the same
node on a twig.
Quercus rubra - correct answer -Scientific name of Red Oak.
Quercus (Oak) - correct answer -This genus of tree usually does not have an opposite leaf arrangement.
Pines - correct answer -These conifers have needles in bundles.
, Available oxygen and water - correct answer -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? - correct answer -Are in the
upper 6 inches of soil.
Water will drain very slowly out of the planting hole. - correct answer -If a planting hole in a clay soil site
is backfilled with sandy soil.
When soil is compacted: - correct answer -Total pore space and the percentage of macropores are
reduced.
A characteristic of sandy soils in arid regions is: - correct answer -They tend to become alkaline, and salts
build up due to the lack of heavy rainfall.
When irrigating trees: - correct answer -Infrequent, deep soakings are preferable to frequent, shallow
waterings.
Sandy soils: - correct answer -Have a higher infiltration rate than clay soils.
A soil is at field capacity when: - correct answer -Gravitational water has drained away.
With sprinkler irrigation: - correct answer -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.
In sites where poor drainage can be a problem, which of the following WILL NOT help ensure plant
survival? - correct answer -Placing gravel in the bottom of the planting hole and backfilling with a sandy
soil.
8 pounds of nitrogen - correct answer -80 pound bag of 10-6-4 fertilizer contains how many pounds of
actual nitrogen?
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