ISA Arborist Study Guide Sample Test Questions /
Comprehensive Study Guide Questions Bank / Questions
and Correct Detailed Answers
Terms in this set (80)
Bark, phloem, cambium, When cutting through a tree with a chain saw or drilling into
xylem a tree, you would pass through (in order)
Growth may be stimulated in If the terminal bud is removed in pruning:
lateral buds
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 They are not in the same genus.
menziesii) differs from
balsam fir (Abies balsamea)
in that:
Opposite leaf arrangement When two leaves and/or buds are located at the same node on a
is: 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.
The primary factor in controlling the depth, spread, and
Available oxygen and water
distribution of tree roots in the soil is/are:
, The most fibrous and Are in the upper 6 inches of soil.
absorptive portion of a
tree's root system is found
in?
Water will drain very slowly If a planting hole in a clay soil site is backfilled with sandy soil.
out of the planting hole.
When soil is compacted: Total pore space and the percentage of macropores are
reduced.
A characteristic of sandy They tend to become alkaline, and salts build up due to the
soils in arid regions is: lack of heavy rainfall.
When irrigating trees: Infrequent, deep soakings are preferable to frequent, shallow
waterings.
Sandy soils: Have a higher infiltration rate than clay soils.
A soil is at field capacity Gravitational water has drained away.
when:
With sprinkler irrigation: 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 Placing gravel in the bottom of the planting hole and backfilling
drainage can be a problem, with a sandy soil.
which of the following WILL
NOT help ensure plant
survival?
8 pounds of nitrogen 80 pound bag of 10-6-4 fertilizer contains how many pounds of
actual nitrogen?
Nitrogen, phosphorus, A complete fertilizer contains?
potassium
A tree may not respond A slow release fertilizer was applied, inadequate soil moisture, and
immediately to a fertilizer a tree is suffering from collar rot
application if:
Comprehensive Study Guide Questions Bank / Questions
and Correct Detailed Answers
Terms in this set (80)
Bark, phloem, cambium, When cutting through a tree with a chain saw or drilling into
xylem a tree, you would pass through (in order)
Growth may be stimulated in If the terminal bud is removed in pruning:
lateral buds
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 They are not in the same genus.
menziesii) differs from
balsam fir (Abies balsamea)
in that:
Opposite leaf arrangement When two leaves and/or buds are located at the same node on a
is: 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.
The primary factor in controlling the depth, spread, and
Available oxygen and water
distribution of tree roots in the soil is/are:
, The most fibrous and Are in the upper 6 inches of soil.
absorptive portion of a
tree's root system is found
in?
Water will drain very slowly If a planting hole in a clay soil site is backfilled with sandy soil.
out of the planting hole.
When soil is compacted: Total pore space and the percentage of macropores are
reduced.
A characteristic of sandy They tend to become alkaline, and salts build up due to the
soils in arid regions is: lack of heavy rainfall.
When irrigating trees: Infrequent, deep soakings are preferable to frequent, shallow
waterings.
Sandy soils: Have a higher infiltration rate than clay soils.
A soil is at field capacity Gravitational water has drained away.
when:
With sprinkler irrigation: 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 Placing gravel in the bottom of the planting hole and backfilling
drainage can be a problem, with a sandy soil.
which of the following WILL
NOT help ensure plant
survival?
8 pounds of nitrogen 80 pound bag of 10-6-4 fertilizer contains how many pounds of
actual nitrogen?
Nitrogen, phosphorus, A complete fertilizer contains?
potassium
A tree may not respond A slow release fertilizer was applied, inadequate soil moisture, and
immediately to a fertilizer a tree is suffering from collar rot
application if:
