ISA Arborist Practice Exam Questions And Verified Correct
Answers
When cutting through a tree with a chain saw or drilling into a tree, you would pass
through which structures (in order?
bark, phloem, cambium, xylem
Track progress
When cutting through a tree with a chain saw or drilling into a tree, you would pass
through which structures (in order? - Correct Answer bark, phloem, cambium, xylem
If the terminal bud is removed in pruning, ________________________. - Correct
Answer growth may be stimulated in lateral buds
The growth rings of many trees __________________. - Correct Answer are visible
because of anatomical difference between earlywood and latewood
Which layer of cells is resposible for outward trunk growth and increased girth of a tree?
- Correct Answer Cambium
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
When two leaves - Correct Answer Opposite
Select the botanical name that is written correctly.
-Quercus Rubra
-Quercus rubra
-quercus Rubra
-quercus rubra - Correct Answer Quercus rubra
Which genus of trees does NOT have an opposite leaf arrangement?
-Acer (maples)
-Fraxinus (ashes)
-Quercus (oaks)
-Aesculus (horsechestnuts/buckeyes) - Correct Answer Quercus (oaks)
Which conifers have needles in bundles? - Correct Answer pines
The primery reason that most fine, absorbing roots are typically found near the soil
surface is that __________. - Correct Answer roots need both air and water
Microorganisms tend to congregate in the rhizosphere, in part, because _______. -
Correct Answer sugar exudates from root tips are a source of food
, If a planting hole in a clay soil site is backfilled with sandy soil, ______. - Correct
Answer water will drain very slowly out of the planting hole
When soil is compacted. ______________. - Correct Answer total pore space and the
percentage of macropores are reduced.
When irrigating trees, _______. - Correct Answer Infrequent, deep soakings are
preferable to frequent, shallow waterings.
sandy soils ________________. - Correct Answer Have higher infiltration rates than
clay soils
A soil is at field capacity when - Correct Answer Gravitational water has drained away
What is true about irrigating with recycles (reclaimed) water? - Correct Answer
recycled water is typically high in salts
Which of the following is a problem associated with flooding?
- lack of oxygen in the soil leading to root suffocation
- changes the chemical composition of essential elements
- fermentation in root cells and buildup of toxic compounds
- all of the above - Correct Answer all of the above
A 36 kg (80 lb) bag of 10 - 6 - 4 fertilizer contains how many kilograms (pounds) of
actual nitrogen? - Correct Answer 3.6 kg (8 lb)
A complete fertilizer contains _____. - Correct Answer nitrogen, phosphorus,
potassium
A tree may not respon immediately to fertilizer applicaition if,
- slow-release fertilizer was applied
- there is inadequate soil moisture
- the tree is not actively growing
- all of the above - Correct Answer all of the above
A soil test may not - Correct Answer the soil may contain adequate nutrients, but
something may inhibiting uptake
What is true about soil additives? - Correct Answer some composts and other sources
of organic matter can contain heavy materials
The primary climatic factor that determines hardniness zones is ________. - Correct
Answer low temperature extremes
Answers
When cutting through a tree with a chain saw or drilling into a tree, you would pass
through which structures (in order?
bark, phloem, cambium, xylem
Track progress
When cutting through a tree with a chain saw or drilling into a tree, you would pass
through which structures (in order? - Correct Answer bark, phloem, cambium, xylem
If the terminal bud is removed in pruning, ________________________. - Correct
Answer growth may be stimulated in lateral buds
The growth rings of many trees __________________. - Correct Answer are visible
because of anatomical difference between earlywood and latewood
Which layer of cells is resposible for outward trunk growth and increased girth of a tree?
- Correct Answer Cambium
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
When two leaves - Correct Answer Opposite
Select the botanical name that is written correctly.
-Quercus Rubra
-Quercus rubra
-quercus Rubra
-quercus rubra - Correct Answer Quercus rubra
Which genus of trees does NOT have an opposite leaf arrangement?
-Acer (maples)
-Fraxinus (ashes)
-Quercus (oaks)
-Aesculus (horsechestnuts/buckeyes) - Correct Answer Quercus (oaks)
Which conifers have needles in bundles? - Correct Answer pines
The primery reason that most fine, absorbing roots are typically found near the soil
surface is that __________. - Correct Answer roots need both air and water
Microorganisms tend to congregate in the rhizosphere, in part, because _______. -
Correct Answer sugar exudates from root tips are a source of food
, If a planting hole in a clay soil site is backfilled with sandy soil, ______. - Correct
Answer water will drain very slowly out of the planting hole
When soil is compacted. ______________. - Correct Answer total pore space and the
percentage of macropores are reduced.
When irrigating trees, _______. - Correct Answer Infrequent, deep soakings are
preferable to frequent, shallow waterings.
sandy soils ________________. - Correct Answer Have higher infiltration rates than
clay soils
A soil is at field capacity when - Correct Answer Gravitational water has drained away
What is true about irrigating with recycles (reclaimed) water? - Correct Answer
recycled water is typically high in salts
Which of the following is a problem associated with flooding?
- lack of oxygen in the soil leading to root suffocation
- changes the chemical composition of essential elements
- fermentation in root cells and buildup of toxic compounds
- all of the above - Correct Answer all of the above
A 36 kg (80 lb) bag of 10 - 6 - 4 fertilizer contains how many kilograms (pounds) of
actual nitrogen? - Correct Answer 3.6 kg (8 lb)
A complete fertilizer contains _____. - Correct Answer nitrogen, phosphorus,
potassium
A tree may not respon immediately to fertilizer applicaition if,
- slow-release fertilizer was applied
- there is inadequate soil moisture
- the tree is not actively growing
- all of the above - Correct Answer all of the above
A soil test may not - Correct Answer the soil may contain adequate nutrients, but
something may inhibiting uptake
What is true about soil additives? - Correct Answer some composts and other sources
of organic matter can contain heavy materials
The primary climatic factor that determines hardniness zones is ________. - Correct
Answer low temperature extremes
