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ISA Arborist Study Guide Sample Test Questions With 100% Correct Answers
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ISA Arborist Study Guide Sample Test Questions With 100% Correct Answers
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ISA Arborist Study Guide Sample TestQuestions 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?
Nitrogen, phosphorus, potassium - CORRECT ANSWER - A complete fertilizer
contains?
A tree may not respond immediately to a fertilizer application if: - CORRECT ANSWER -
A slow release fertilizer was applied, inadequate soil moisture, and a tree is suffering
from collar rot
A soil test may not identify a nutrient deficiency problem in a plant because: -
CORRECT ANSWER - The soil may have adequate nutrients but something may be
inhibiting uptake.
Sulfur-coated urea/ or ureaformaldehyde is sometimes included in nitrogen fertilizers
because: - CORRECT ANSWER - Slow-release forms of nitrogen are sometimes
desired.
The climate factor that determines hardiness zones is: - CORRECT ANSWER - Low
temperature extremes
Trees planted under utility lines should be: - CORRECT ANSWER - Low growing to
remain below the lines.
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