NCLC Arboriculture Techniques Practice Exam

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• Which CODIT wall inhibits lateral spread of decay by activating ray cells to resist decay?
• Why is it important to avoid volcano mulching around tree trunks?
• In industry safety terms, the term 'shall' indicates mandatory action.
• Chainsaw kickback occurs when which portion of the bar and chain comes into contact with the wood or another object?
• Which term represents the initial formation of the knot used before adjustments?
• According to arboriculture safety standards, when tying a climbing line, the knot or hitch used must be
• What is a key consequence of not exposing the root flare at planting?
• Damage to a plant indirectly caused by humans is categorized as which?
• Identify one common wood-decay fungus and a canopy symptom it may cause.
• In a Blake's hitch, which end is used to tie the hitch in a closed system?
• Which PPE are required for all arboricultural operations?
• Subordinating pruning refers to pruning of portions of limbs to reduce size and growth. Which description best matches this practice?
• Which item is specifically described as necessary PPE when operating a chainsaw on the ground?
• Which group uses the ANSI Z-133 standard?
• How do you evaluate whether a tree is salvageable after storm damage?
• What is the difference between bucking and limbing when processing a felled tree?
• Which of the following is the most common leaf arrangement?
• When cutting through the middle of a tree, which tissues are encountered from the outside toward the center, in order?
• Which statement best describes the term 'biotic' in plant pathology?
• If soil tests show adequate nutrient levels and balanced pH, how should fertilization be adjusted?
• What is the swollen area at the base of a branch where it attaches to the parent stem called?
• What is the purpose of a pre-job site assessment in arboriculture?
• Insects that carry a pathogen are called what?
• Lions tailing is a pruning practice where which statements are true?
• What is the primary objective of pruning for health?
• How do weather conditions affect arboricultural operations?
• Which practice aligns with subordinating pruning?
• When cutting from the outside toward the center of a tree, what is the second tissue encountered?
• A chainsaw has four reactive forces. Which of the following is listed as one of them?
• In CODIT, which wall is a weak wall that stops pathogens from in the center of the tree?
• Which of the following is a listed advantage of using a false crotch, in terms of rigging?
• Which phrase is typically called to prompt workers to stay out of danger?
• As soil is compacted, bulk density ___?
• Which statement best differentiates crown thinning from crown reduction and includes a use case for each?
• What is the difference between stump grinding and stump removal?
• Which two common rigging devices are used to control limb lowering?
• What is the difference between pruning cuts made flush to the trunk versus leaving a branch collar, and which practice is preferred?
• Subordinating pruning is best described as which of the following actions?
• The minimum diameter of a climbing line is what?
• What is the recommended procedure when pruning near power lines for safety?
• What is the meaning of the term dripline and how should it guide irrigation planning?
• Which statement best describes decked lowering operations in rigging?
• Describe a basic storm risk mitigation plan for urban trees.
• What is the purpose of ANSI A300 pruning standards?
• Name two common pruning cuts and describe when each is used.
• Which standard would you consult for guidance on pruning and planting practices in arboriculture?
• What constitutes a proper target analysis in arboriculture risk assessment?
• Describe a key aspect of pruning wound response related to wood composition.
• What is stump grinding, and what are its typical advantages and limitations?
• Which pruning cut location is recommended to promote rapid wound healing?
• Volcano mulching should be avoided because it can cause what problems?
• Flip lines with a wire core are approved for working around energized conductors.
• CODIT stands for what in the context of tree wound response?
• What is the recommended irrigation approach for newly planted trees in the first two years?
• Who developed the CODIT model describing a tree's response to wounding?
• Cables to support trees are relied upon to make a hazardous tree safe?
• Which of the following statements accurately describes subordinating pruning?
• What is an accepted method to relieve soil compaction for trees?
• Subordinating pruning is defined as pruning of portions of limbs to reduce size and growth. Which statement is accurate?
• Which safety standard governs arboriculture operations?
• Which statement about pruning tools is most accurate?
• When should tree care workers wear a helmet?
• Chlorosis describes yellowing of leaves.
• A proper pruning cut is finished with the last cut made just outside of which feature?
• What does a hydraulic or mechanical advantage rigging system do in tree work?
• During tree removal, the escape route away from the stump should be at a 45-degree angle from the tree.
• Making flush cuts can result in which of the following?
• In tree stress terminology, what does acute stress indicate?
• What is a key step for safe decked lowering operations in rigging?
• What is a typical amount of play to check for when tensioning a chainsaw chain?
• In rope terminology, standing end of the rope is which?
• What is the purpose of tree cabling and bracing?
• What is the first step in responding to an on-site emergency?
• Explain the difference between cabling and bracing in structural tree support.
• What is the term for the point where a branch attaches to the trunk?
• To create an angle through a limb when installing anchor hardware, which hardware is used?
• Which CODIT wall stops pathogens from traveling around the tree rings?
• When performing reduction cuts, if there is no branch protection zone on stem-only branches behind a true collar, what is likely to be present on the main stem?
• Which factors influence the selection of pruning timing?
• In limb lowering operations, what is the primary benefit of using a friction device and a rigging block/sheave?
• In arboriculture, what does the root zone refer to in terms of protection during construction?
• Tree stresses are classified as which two types?
• In subordinating pruning, which outcome is expected?
• What is the importance of accurate tree identification in pruning and treatment planning?
• Which action is a recommended safety step before starting a chainsaw?
• In knot tying, which term describes final adjustments to ensure the knot sits correctly and is snug?
• Which factor is least important when selecting between full felling and sectional removal?
• Which term describes the protective zone around a branch union?
• What is the name of the tissue that separates Xylem and Phloem?
• Name two indicators that a tree is experiencing drought stress.
• Which statement about terminal bud removal and growth direction is supported by pruning guidance?
• Why is proper chain tension critical on a chainsaw, and how do you check it?
• What type of hand pruner is best for making clean pruning cuts?
• Which CODIT wall is the strongest and forms new growth rarely affected by decay?
• Which item is not part of the described safe decked lowering procedure?
• In safety language, 'shall' indicates mandatory action.
• What are three items of personal protective equipment essential for climbing arborists?
• What is the primary use of the Critical Root Zone (CRZ) concept in site planning?
• Which standard must carabiners used for personal life support meet?
• What is the root collar flare and why is it important to avoid burying it?
• What are the typical limitations of stump grinding?
• Subordinating pruning refers to pruning of portions of limbs to reduce size and growth. Which option best expresses this concept?
• Which is a sign of poor branch attachment?
• Included bark at a branch union indicates which condition?
• Describe the function of lignin in wood and its relevance to pruning wound response.
• Which term describes securing the knot's final form after initial assembly?
• Anthracnose is most accurately described as which type of disease?
• During tree removal, how far should workers who are directly in the operation be from the fall zone?
• When tying a knot, the process is to...
• What is the branch collar and why should cuts be made just outside it?
• The tissue that forms new xylem and phloem is called what?
• Damage to a leaf caused by a fungus is best categorized as which?
• How is the Critical Root Zone (CRZ) calculated for a tree with a DBH of 24 inches?
• Which action represents a NOT recommended storm risk mitigation measure for urban trees?
• Climbing lines and rope used for personal life support must be
• Which term is used to describe securing the knot's final shape after it has been tied and dressed?
• The last pruning cut should be made just outside of which feature?
• Which practice is NOT a recommended mitigation for soil compaction?
• How does soil testing guide fertilization for urban trees?
• How does soil pH influence nutrient availability and uptake by trees?
• Necrosis refers to the death of tissue.
• Which hazard is specifically associated with working near power lines?
• What is the sequence of cuts in the three-cut method for removing a large limb, and why is this sequence important?
• What is a notch cut and when would you use it?
• Why is mulching beneficial for tree health, and what practice should be avoided?
• For crown reduction, the main stem should be cut back to a branch that is at least what fraction of the parent stem’s diameter?
• Young trees are more tolerant of severe pruning than mature trees.
• What is root flare and why is it important?
• In safety communications, which phrase should crew members say to prompt others to remain out of the fall zone during operation?
• Why does wind throw risk influence pruning and removal decisions?
• Which feature should be preserved when pruning to avoid wound?
• Which of the following is NOT a direct goal of pruning for health?
• Which knot is tied in the end of the running end to act as a stopper knot?
• Which of the following statements is true regarding branch protection zones?
• Which option is true about subordinating pruning?
• What is the minimum distance an arborist trained to work around electrical conductors must maintain from energized lines?
• In CODIT, what does the letter D stand for?
• Which of the following is NOT a common sign of a hazard tree?
• When would you use guying for a tree, and what safety considerations are important?
• Identify two common pests and one management approach for each.
• What is the main function of guard cells in plant leaves?
• Which standard defines pruning standards for the tree care industry?
• Compared to bypass pruners, anvil pruners are not as good for clean cuts.
• Which outcome is a potential consequence of flush cuts?
• Which canopy symptom may indicate Ganoderma infection?
• What is the primary purpose of the CODIT model?
• Which practice is NOT recommended before starting a chainsaw?
• Chlorosis is best described as what symptom?
• Yellowing of leaves is chlorosis.
• What term describes a cluster of dwarfed shoots on affected twigs?
• Define a hazard tree and list two common signs.
• Cables to support trees can be relied upon to make a hazardous tree safe?
• Which of the following is a disease commonly associated with elm trees, especially as a vascular infection?
• Which hazard is most directly associated with working near power lines during tree work?
• Which standard governs pruning, planting, and other tree care operations in arboriculture?
• What is the purpose of installing tree protection zones (TPZ) during construction?
• Which term is least associated with the initial forming of a knot but relates to ensuring knots are properly tight under load?
• Which tissue carries water upward from roots through the trunk?
• Which term describes adjusting the knot to lie flat and neat after tying?
• Necrosis is tissue death; chlorosis is yellowing of leaves.
• In a Blake's or taut-line hitch in a closed system, which end of the rope is used to tie the hitch?
• If the terminal bud is removed in pruning, growth may be stimulated to the
• Which CODIT wall is the weakest wall that stops pathogens from traveling up the tree?
• Which mulching practice is recommended for tree health?
• Which tissue transports sugars downward and outward from leaves?
• Abiotic factors are characterized as what?
• One listed advantage of using a false crotch over a natural branch union is which of the following?
• Which factor is NOT typically considered when selecting between full felling and sectional removal?
• Which tissue uses ray cells to transport nutrients laterally?
• What are two common regulatory or ethical considerations in professional arboriculture?
• Define life expectancy for trees and its role in management decisions.
• When evaluating storm-damaged trees, which consideration is essential to determine salvage potential?
• In pruning practice, mature trees are not more tolerant of severe pruning than younger trees.
• Which of the following is NOT a typical component of a pre-job site assessment?
• Which statement best describes crown thinning?
• What is the purpose of a tree risk rating, and what scales are commonly used?
• Which statement best describes the branch collar's role in pruning wounds?
• When using a saw to remove a branch, which method is best?
• The minimum breaking strength of a climbing line is how many pounds?
• Why is soil compaction harmful to tree roots and name two mitigation methods.