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ISA Sample Test Question
ISA Sample Test Question
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1
Douglasfir differs from balsam fir in that
they are not in the sam genus
balsam fir is not a conifer
they are not in the same family
Douglasfir is actually a type of hemlock
2
Releasing predators or parasites of an insect pest in an example of a ...
Chemical control
Biological control
Mechanical control
Cultural control
3
When irrigating trees,
keeping the soil moist at the root flare reduces girdling root formation
the most beneficial and efficient time to water is mid-afternoon
the foliage should be kept wet at night to reduce transpiration
infrequent, deep soakings are preferable to frequent, shallow waterings
4
If the terminal bud is removed in pruning,
all of the above
the branch will die back
growth may be stimulated in lateral buds
flowering is stimulated to enhance fruit production
5
A tree may not respond immediately to fertilizer application if...
all of the above
there is inadequate soil moisture
the tree is not actively growing
a slow-release fertilizer was applied
6
Head protection is required for tree workers...
When specified by the supervisor
Whenever performing tree care operations
Whenever there are climbers working aloft
Only if chainsaws or chippers are in use
7
Which type of decay primarily affects lignin within & between cell walls in wood, reducing trees compressive strength?
White rot
Soft rot
Brown rot
Sapwood rot
8
A condition characterized by a cluster of dwarfed shoots on affected twigs is called...
Chlorosis
Verticillium wilt
Anthracnose
Witch's broom
9
Big portions of trees root systems have been removed during construction, a step that will help preserve the tree is...
A surface application of high rate soluble nitrogen
None of the above
Pruning one-third of the crown to compensate for root loss
Construction of a tree well
10
Which of the following should be treated first?
Suspended breathing
Poisoning
Heat stroke
Severe bleeding
11
When it comes to pruning, as a rule, mature trees are...
unlikely to produce water sprouts
capable of tolerating heading
more tolerant of extremes than young trees
not tolerant of severe pruning
12
Gathering info, assessing severity & implications of problem, determine client expect., and deciding action is called...
The cultural control mechanism
Integrated Pest Management
The appropriate response process
Plant Health Care
13
Arborists, as trained professionals in tree care,...
Are required to have formal training in risk assessment
Must be qualified to perform a root crown insepection
Will be held to a higher standard of care than general citizens
14
A "rope inside a rope" is better known as a...
12-strand line
3-strand line
Hollow-braid line
Double-braid line
15
A Prusik loop is used...
To attach a tagline to a limb
To tie in with the secured footlock method
As an arborist block for loweringlimbs
To cable small, multi-stemmed trees
16
When soil is compacted,
soil particles are broken up, giving the soil a finer texture
a higher water content will reduce the damaging effects
total pore space and the percentage of macropores are reduced
micropores combine to form macropores
17
Twig dieback from periodical cicadas is primarily a result of...
Ovipositing (egg-laying)
Feeding-induced galls on the twigs and foliage
Larvae feeding on the roots
Adults feeding on the foliage
18
When pruning young trees, it is important to train for a dominant leader and well-spaced scaffold branches so that...
co-dominant branching can be avoided
future pruning can be minimized
all of the above
the tree will be structurally strong
19
If a planting hole in a clay soil site is back filled with sandy soil,
improved texture will reduce the chances of girdling roots forming later
nutrients will be more available to the newly established roots in hole
water will drain very slowly out of the planting hole
drainage will be improved, helping the tree to establish
20
To prune trees that flower on the previous year's growth and maximize flowering, you should prune...
any time during the dormant season
in late summer after seed formation
in the fall, just after leaf drop
shortly after flowering
21
A necessary component in the existence of tree risk is...
An environment that may contribute to failure
All of the above
A person or object that may be injured or damaged
A tree with a potential for faliure
22
With sprinkler irrigation
less frequent waterings of longer duration will reduce the salt buildup
water hitting the soil surface can lead to crusting
application rates that exceed absorption can lead to runoff
all of the above
23
When two leaves/buds are located at the same node on a twig, the arrangement is called
opposite
compound
alternate
whorled
24
Which conifers have needles in bundles?
pines
spruces
firs
hemlocks
25
A commonly used set methods for appraising trees was developed by the...
Society of Commercial Arborists
Society of Consulting Arborists
Council of Tree and Landscape Appraisers
Consortium of Landscape Professionals
26
When pruning a branch from a tree, the final cut should be...
flush with the parent stem
at a 45-degree angle to the parent stem
just outside the branch collar
parallel to the branch bark ridge
27
When soils are compacted by construction equipment, trees usually decline because...
Root growth and expansion may be diminished
Oxygen availability is reduced
all of the above
The ability of the roots to absorb water and minerals decreases
28
A social benefit of trees and natural areas that has been identified through research is...
Behavioral improvements in children
Hospital recovery times are lower if trees are visible to the patients
Stress reduction from settings with trees
All of the above
29
Staking or guying when planting a tree is...
Done only for bare-root trees
for promoting a larger and stronger root system and better trunk taper
not always required or necessary
Not necessary for tree greater than 6 inches (15 cm) in diameter
30
Mycorrhizae are
elongated underground stems producing sucker sprouts
a symbiotic relationship between fungi and roots
cells in which photosynthesis takes place
collar-rot fungi
31
Planting a row of palms at various depths to create a row of uniform height
Is acceptable due to the deep rooting of palms
Will not be harmful as long as the soil is sandy and well drained
Is recommended to achieve deep rooting in sandy soils
Can lead to death of the deeply planted trees
32
Microorganisms tend to congregate in the rhizosphere, in part, because...
sugar exudates from the root tips are a source of food
bacteria preferentially feed on the meristem tissue at the root tips
mycorrhizae fix nitrogen and make it available
root hairs tend to collect cations essential to microorganism growth
33
The situation that can cause chainsaw kickback is...
The upper quadrant of the guide bar contacts and object
Uneven sharpening of the chainsaw teeth
Failure to maintian adequate chain tension
A worn sprocket or guide bar
34
Arborists should be involved early in the construction planning process because...
Once construction has begun, it may be too late to save the trees
There is often little arborists can do to treat construction damage
Tree preservation measures should be in the specification
All of the above
35
The growth rings of many trees
can give information about growing conditions in previous years
all of the above
are visble becuz of rapid growth rate of earlywood relative to latewood
can be counted to approximate a tree's age
36
Fastigiate trees have a growth form that is...
upright
vase-shaped
weeping
overarching
37
A separate, short length of rope used to tie the friction hitch in an open climbing system is known as a...
Rope sling
Split-tail
Prusik loop
Work-positioning lanyard
38
If a lag hook is installed into decayed wood, the...
Holding power will be reduced
Decay will likely spread along the lag
All of the above
Decay may be detected when drilling
39
Which genus of trees usually does
not
have an opposite leaf arrangement?
Cornus (dogwoods)
Fraxinus (ash)
Quercus (oaks)
Acer (maples)
40
The climate factor that determines hardiness zones is...
north-south location
temperature, rainfall, and winds
east-west location
low temperature extremes
41
According to many standards, the term "shall" denotes...
A mandatory requirement
An advisory recommendation
A safety suggestion by ISA
None of the above
42
Select the scientific name that is written correctly
Quercus rubra
quercus Rubra
Quercus Rubra
quercus rubra
43
An 80-pound bag of 10-6-4 contains how many pounds of actual nitrogen?
8
10
4
6
44
A measure that can be taken to minimize compaction on a construction site is...
Permanently raising the soil grade to protect tree roots
Root pruning the trees in advance
Spreading a temporary, thick layer of mulch over the site
Watering the site thoroughly before equipment is brought in
45
A complete fertilizer contains...
all 16 essential elements
equal amounts of N, P, and K
nitrogen, phosphorus, and potassium
organic and inorganic nitrogen
46
Residential properties with trees generally...
Reduce the real estate appraisals of adjoining properties
Are more difficult to sell due to liability concerns
Get higher appraisal & sales values than similar properties without trees
Have no effect on sales or real estate appraisals
47
Trees that lean because of ground failure or root injury...
Are not a threat unless located at the edge of a wooded area
Are less of a risk than those that lean due to phototropism
Have a high potential to fall
Are a risk only if they begin to grow in compensation for the lean
48
Which of the following should be considered energized with a potentially fatal voltage?
Underground electric lines
Overhead electric lines
All of the above
Telephone and cable TV wires
49
A soil is at field capacity when
it is completely staturated
gravitational water has drained away
the permanent wilting point has been reached
there is no water available to the roots
50
If two bracing rods are installed to support a weak union, they should be placed...
Never use more than one brace rod per crotch
In vertical alignment, on above the other
No more than 4 inches (10 cm) apart
Staggered, and no closer together than the diameter of the trunk
51
Where poor drainage can be a problem, which of the following will not help ensure plant survival?
improvement of surface drainage by changing the grade, or trenching
installation of drain tiles
careful plant selection and shallow planting
placing gravel in the bottom of the planting hole and backfilling w/ sand
52
Some trees acclimate to shade conditions by...
variegated foliage losing variegation, or coloured foliage being greener
any or all of the above
developing thinner leaves
developing larger leaves
53
An advantage of the amon-eye system over the use of an eye bolt is...
No washers are needed on the terminations
The eye bolt is not drop-forged
They are considered stronger than eye bolts
The length of the rod can be adjusted
54
Damage caused by nonliving factors tend to be...
Random with irregular borders
Uniform, but generally not affecting the new growth
Uniform with definite borders
Random and concentrated on the new growth
55
A characteristic of sandy soils in arid regions is that they...
tend to become alkaine, and salts build up becuz lack of heavy rain
tend to become acid because basic ions leach out
have a high water-holding capacity because rainfall is scarce
are fine in texture due to high sand content
56
Air-spading trenches in a wheel-spoke pattern and backfilling with organic matter or a more porous soil is called...
Soil fracturing
Vertical radiation
Tunnel aeration
Radial aeration
57
Plant Health Care is a comprehensive program to manage...
The appearance, structure, and health of plants
Tree health without the use of pesticides
Pest, pathogens, and abiotic disorders of trees
Insect and disease of plants
58
The classic three-step cut used to remove limbs is also called the...
Jump cut
Drop cut
Topping cut
Hinge cut
59
The purpose of a lightning protection system is to...
Conduct the electrical charge into the soil away from the tree
Reduce the voltage of the strike
Prevent the tree from being struck
all of the above
60
When cutting through a tree with a chain saw or drilling into a tree, you would pass through (in order)
bark, phloem, cambium, xylem
bark, cambium, phloem, xylem
bark, xylem, phloem, cambium
bark, cambium, xylem, phloem
61
Following construction, forest trees on the edge of remaining stands are prone to failure due to..
Losing the protection of the trees that used to surround them
Less trunk stability and poor taper
Increased exposure to the weather elements
All of the above
62
A soil test may not identify a nutrient deficiency problem in a plant because...
the tests are not reliable
the nutrient content can change after collecting
the soil may contain adequate nutrients but something may inhibit uptake
no one knows which levels of nutrients in soils are adequate
63
If the height of a tree must be reduced,...
the tree should be root pruned to compensate for foliage loss
all cuts should be made at internodes to avoid cutting through buds
all of the above
branches should be removed at point of orgin or to a large terminal lateral
64
Which of the following is a true statement?
Evergreen conifers are very shade tolerant and scorch in full sunlight
Flood plain species always grow well
Forest understory plants good for streets because they're short
Some species are adapted dry heat with small thick foliage & sunken stomata
65
A systemic pesticide is one that...
Has no harmful effect on the environment
Kills insects on direct contact
Is translocated throughout the plant
Kills all living organisms
66
Sandy soils...
have higher infiltration rates than clay soil
do not ever reach field capacity because drainage is good
have a greater water-holding capacty than clay soils
all of the above
67
When cabling a multi-stemmed tree, extra support can be added to the system by...
Cabling the limbs together in triangular combinations
Using double cables on each limb
All of the above
Installing the cables low in the tree with turnbuckles tighten from ground
68
Sulfur-coated urea or urea formaldehyde is sometimes included in nitrogen fertilizer because...
the soil pH must be adjusted to optimize nutrient uptake
the soil's buffering capacity may inhibit nitrogen absorption
slow-release forms of nitrogen are sometimes desired
urea is a good, natural source of phosphorus
69
Most of the fine, absorbing roots typically found near the soil surface because...
roots grow where conditions are favorable
the pH of the soil is generally higher near the surface
phosphorus and potassium are more available
roots need UV light to drive respiration
70
When planting a container-grown tree,
none of the above
Place soft fill in the bottom of the planting hole to encourage root growth
Backfill the hole with soilless growth medium to encourage root growth
Separate and tease apart the roots to reduce girdling root formation
71
A typical tree ordinance will define the jurisdiction's authority and...
All of the above
Establish penalties for noncompliance
Describe the conditions and requirements of the ordinance
Specify the responsibility for enforcement
72
Placing gravel in the bottom of the planting hole in a clay soil site will...
Improve drainage
Restrict soil space and create a perched water table
Prevent the formation of girdling roots
Improve aeration and water infiltration
73
Plant damage associated with a sap-feeding insect pest might appear as...
Distorted leaves or shoots
Webs or tents in the tree
Leaves that have been skeletonized
Leaf mines or blotches
74
Detailed plans, requirements, & statements of particular procedures or standards used to define and guide are called...
Standards
Best management practices
Specifications
Ordinances
75
The first steps of the emergency response process are to...
Reach the victim and begin first aid
Reach the victim and secure him or her for descent
Assess the situation and call for emergency help
Shut off the electricity
76
Which layer of cells is responsible for outward trunk growth and increased girth of a tree?
pith
cambium
epidermis
cortex
77
Trees to be planted under utility lines should be...
all of the above
tolerant of heavy pruning
low-growing to remain below the lines
vase-shaped or overarching to clear conductors
78
Scale damage to plants is the result of...
Physiological disorder due neither to insects nor to disease
Fungal spore growth depleting xylem reserves
Vascular damage from fungal invasion
Pholem-feeding insects causing a loss of vigor
79
The mortality spiral describes the...
Process in which pesticides eradicate both pests and good insects
Process of infection and spread of disease in a tree
Cumulative effects of stress causing decline of a plant over time
Allocation of resources among growth, storage, and defense
80
The most important reason to prune a tree when transplanting is to...
Remove structurally weak or damaged branches
Invigorate the tree
Reduce growth at the tips
Compensate for root loss
