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ISA TRAQ Vocabulary Questions and
Correct Answers/ Latest Update / Already
Graded
advanced assessment {Level 3)
Ans: an assessment performed to provide detailed in formation
about specific tree parts, defects, targets, or site conditions.
Specialized equipment, data collection and analysis, and/or
expertise are usually required
acceptable risk
Ans: the degree or amount of risk that the owner, manager, or
controlling authority is willing to accept.
acceptable risk threshold
Ans: the highest level of risk that does not exceed the
owner/manager's tolerance.
adventitious branch
Ans: branch arising from a stem or parent branch and having
no connection to apical meristems.
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adventitious root
Ans: roots arising from roots or stems and having no
connection to apical meristems.
aerial inspection
Ans: inspection of the upper tree parts not readily accessed
from the ground; typically done by climbing or from an aerial
lift
aerial patrol
Ans: overflights of a utility right-of-way, large areas, or
individual trees in a defined area to record the location of tree s
that are likely to fail and cause harm.
analysis
Ans: detailed examination of the elements or structure of
something
angiosperm
Ans: plant with seeds borne in an ovary: Consists of two large
groups: monocotyledons (grasses, palms, and r elated plants)
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and dicotyledons (most woody trees, shrubs, herbaceous
plants, and related planes) (contrast with gymnosperm).
annual rings
Ans: rings of xylem that are visible in a cross section of the
stem, branches, and roots of some trees. In temperate zones,
the rings typically represent one year of growth.
barrier zone
Ans: a chemical and anatomical barrier formed by the cambium
present at the time of wounding in response to wounding.
Inhibits the spread of decay into xylem tissue for med after the
time of wounding. Wall 4 in the CODIT model (contrast with
reaction zone).
basal swelling
Ans: increased wood growth in the area near or where the
trunk and roots come together.
basic assessment (Level 2)
Ans: detailed visual inspection of a tree and surrounding site
that may include the use of simple tools. It requires that a tree
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risk assessor inspect completely around the tree trunk looking
at the visible aboveground roots, trunk, branches, and site .
bending moment
Ans: a turning, bending or twisting force exerted by a lever,
defined as the force (acting perpendicular to the lever)
multiplied by the length of the lever (see moment).
biomechanics (tree biomechanics)
Ans: the study of the action of forces on living trees.
bow
Ans: leans characterized by the top of the tree bending over
more than the lower trunk, creating a curve.
brace rod (rigid brace)
Ans: metal rod used to support weak sections or crotches of a
tree.
bracket
Ans: the fruiting body of a decay fungus (see conk).
All rights reserved © 2025/ 2026 |
ISA TRAQ Vocabulary Questions and
Correct Answers/ Latest Update / Already
Graded
advanced assessment {Level 3)
Ans: an assessment performed to provide detailed in formation
about specific tree parts, defects, targets, or site conditions.
Specialized equipment, data collection and analysis, and/or
expertise are usually required
acceptable risk
Ans: the degree or amount of risk that the owner, manager, or
controlling authority is willing to accept.
acceptable risk threshold
Ans: the highest level of risk that does not exceed the
owner/manager's tolerance.
adventitious branch
Ans: branch arising from a stem or parent branch and having
no connection to apical meristems.
All rights reserved © 2025/ 2026 |
, Page |2
adventitious root
Ans: roots arising from roots or stems and having no
connection to apical meristems.
aerial inspection
Ans: inspection of the upper tree parts not readily accessed
from the ground; typically done by climbing or from an aerial
lift
aerial patrol
Ans: overflights of a utility right-of-way, large areas, or
individual trees in a defined area to record the location of tree s
that are likely to fail and cause harm.
analysis
Ans: detailed examination of the elements or structure of
something
angiosperm
Ans: plant with seeds borne in an ovary: Consists of two large
groups: monocotyledons (grasses, palms, and r elated plants)
All rights reserved © 2025/ 2026 |
, Page |3
and dicotyledons (most woody trees, shrubs, herbaceous
plants, and related planes) (contrast with gymnosperm).
annual rings
Ans: rings of xylem that are visible in a cross section of the
stem, branches, and roots of some trees. In temperate zones,
the rings typically represent one year of growth.
barrier zone
Ans: a chemical and anatomical barrier formed by the cambium
present at the time of wounding in response to wounding.
Inhibits the spread of decay into xylem tissue for med after the
time of wounding. Wall 4 in the CODIT model (contrast with
reaction zone).
basal swelling
Ans: increased wood growth in the area near or where the
trunk and roots come together.
basic assessment (Level 2)
Ans: detailed visual inspection of a tree and surrounding site
that may include the use of simple tools. It requires that a tree
All rights reserved © 2025/ 2026 |
, Page |4
risk assessor inspect completely around the tree trunk looking
at the visible aboveground roots, trunk, branches, and site .
bending moment
Ans: a turning, bending or twisting force exerted by a lever,
defined as the force (acting perpendicular to the lever)
multiplied by the length of the lever (see moment).
biomechanics (tree biomechanics)
Ans: the study of the action of forces on living trees.
bow
Ans: leans characterized by the top of the tree bending over
more than the lower trunk, creating a curve.
brace rod (rigid brace)
Ans: metal rod used to support weak sections or crotches of a
tree.
bracket
Ans: the fruiting body of a decay fungus (see conk).
All rights reserved © 2025/ 2026 |
