100+ Free ISA TRAQ Practice Questions

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2026 Statistics

Key Facts: ISA TRAQ Exam

100

Practice Questions

OpenExamPrep

110

Written Exam Questions

ISA

2 hours

Written Exam Time

ISA

~75%

Passing Score

ISA

5 years

Credential Validity

ISA

ANSI A300 Part 9

Methodology Standard

ANSI

The ISA Tree Risk Assessment Qualification (TRAQ) is the International Society of Arboriculture's qualification for systematic, defensible tree risk assessment. It follows the ANSI A300 Part 9 standard and the ISA Best Management Practices, using a two-matrix method that combines likelihood of failure, likelihood of impact, and consequences into a Low, Moderate, High, or Extreme risk rating. The qualification includes a two-day course, a written exam of 110 multiple-choice questions over two hours (about 75% to pass), and a field/performance assessment, and it is valid for five years. Prerequisites include ISA Certified Arborist or an equivalent credential. This free prep includes 100 research-based practice questions with explanations and an AI tutor.

Sample ISA TRAQ Practice Questions

Try these sample questions to test your ISA TRAQ exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the primary purpose of a tree risk assessment under the ISA TRAQ methodology?

A.To assign a monetary appraisal value to a tree

B.To systematically identify hazards and provide the owner a risk rating to inform management decisions

C.To certify that a tree is permanently safe

D.To diagnose and treat tree diseases

Explanation: Tree risk assessment is a systematic process to identify, analyze, and evaluate tree risk so an assessor can communicate a defensible risk rating to the tree owner or risk manager. The goal is informed decision-making, not eliminating all risk or guaranteeing future safety.

2Which level of tree risk assessment involves a 360-degree, walk-around visual inspection of a tree and its surrounding site from the ground?

A.Level 1 (limited visual)

B.Level 2 (basic)

C.Level 3 (advanced)

D.Level 4 (aerial)

Explanation: A Level 2 basic assessment is a detailed 360-degree visual inspection of a single tree and its site conducted from the ground, the most common level used by qualified arborists. It may include simple tools such as a mallet or probe.

3A drive-by survey of street trees to quickly spot obvious defects in many trees best describes which assessment level?

A.Level 1 limited visual assessment

B.Level 2 basic assessment

C.Level 3 advanced assessment

D.A walk-around inspection

Explanation: A Level 1 limited visual assessment is a rapid visual review of a population of trees, often from a moving vehicle or a single side, to identify obvious imminent or probable defects. It is efficient for large populations but does not detect subtle conditions.

4Using a resistance-recording drill or sonic tomography to quantify internal decay in a trunk is an example of which type of assessment?

A.Level 1 limited visual

B.Level 2 basic

C.Level 3 advanced

D.Level 0 informal

Explanation: A Level 3 advanced assessment uses specialized equipment or analytical methods, such as resistance drilling, sonic tomography, or aerial inspection, to evaluate a specific condition of concern identified at a lower level. It provides more detailed data but takes more time and cost.

5Which ANSI A300 standard part specifically addresses tree risk assessment practices?

A.ANSI A300 Part 1 (Pruning)

B.ANSI A300 Part 7 (Integrated Vegetation Management)

C.ANSI A300 Part 9 (Tree Risk Assessment)

D.ANSI Z133 (Safety)

Explanation: ANSI A300 Part 9, Tree Risk Assessment, establishes the U.S. industry standard practices for assessing tree risk. The ISA Best Management Practices for Tree Risk Assessment is the companion document that supports the TRAQ methodology.

6In the TRAQ process, why must the assessor establish a defined assessment time frame at the start of the inspection?

A.To decide how long the field visit will take

B.Because likelihood ratings (of failure and impact) are only valid within that specified period

C.To schedule the next pruning cycle

D.To determine the assessment fee

Explanation: The time frame (for example 1 year or 3 years) is the period over which the assessor judges likelihood of failure and impact. A defect rated as Probable to fail within 5 years may be Improbable within 1 year, so all likelihood ratings are tied to the stated time frame.

7Before beginning a tree risk assessment, the assessor should first establish which of the following?

A.The scope of work, including the level of assessment, time frame, and targets to be considered

B.The exact dollar value of the tree

C.The species' average lifespan

D.The soil pH at the site

Explanation: Defining the scope of work with the client is the essential first step. It sets the level of assessment, the time frame, which trees and targets are included, and any tools to be used, ensuring expectations and the resulting rating are clearly bounded.

8The TRAQ credential is valid for how long before it must be renewed?

A.1 year

B.3 years

C.5 years

D.10 years

Explanation: The ISA Tree Risk Assessment Qualification is valid for five years from the date it is earned. To renew, the holder must take the course and pass the exam again, reflecting that risk-assessment standards and best practices evolve.

9Which credential is an acceptable prerequisite to register for the TRAQ course and exam?

A.A high school diploma only

B.ISA Certified Arborist

C.ISA Certified Tree Worker Climber Specialist only

D.No prerequisite is required

Explanation: To register for TRAQ, candidates must hold a qualifying credential such as ISA Certified Arborist or Board Certified Master Arborist, a relevant arboriculture/forestry/horticulture degree, an ASCA RCA, or an equivalent national/state certification.

10What are the three components combined to derive a final tree risk rating in the TRAQ matrix system?

A.Tree age, height, and species

B.Likelihood of failure, likelihood of impact, and consequences of failure

C.Soil type, weather, and tree value

D.Defect size, decay percentage, and lean angle

Explanation: The TRAQ rating integrates likelihood of failure, likelihood of impact on a target, and the consequences of that impact. Matrix 1 combines likelihood of failure and impact into a likelihood of failure-and-impact, which Matrix 2 then combines with consequences to yield the risk rating.

About the ISA TRAQ Exam

The ISA Tree Risk Assessment Qualification (TRAQ) validates an arborist's ability to perform systematic tree risk assessment using the ISA/ANSI A300 Part 9 methodology. The written exam has 110 multiple-choice questions over two hours and requires roughly 75% to pass, alongside a field/performance assessment.

Assessment

110 multiple-choice questions over 2 hours on the written exam, plus a field/performance component; 75% to pass (reported pass/fail). This practice bank is 100 selected-response items.

Time Limit

2 hours (written exam)

Passing Score

75% (pass/fail)

Exam Fee

~$625 ISA members / ~$750 non-members for the course-and-exam package (International Society of Arboriculture (ISA))

ISA TRAQ Exam Content Outline

16%

Risk Assessment Principles & Levels (1/2/3)

Purpose and process of tree risk assessment, scope of work, time frame, and the three assessment levels (limited visual, basic, advanced), with ANSI A300 Part 9 and the ISA BMP

18%

Tree Biology & Biomechanics

Tree anatomy, CODIT, decay and decay fungi, codominant stems and included bark, reaction wood, taper, and how wood structure affects strength

18%

Likelihood of Failure & Loads

Static and dynamic loads, bending moment and lever arm, cracks, cavities, root failure, and the Improbable/Possible/Probable/Imminent ratings

16%

Targets & Consequences

Targets, target zone, occupancy rate, likelihood of impact, and the Negligible/Minor/Significant/Severe consequence ratings

16%

Risk Categorization Matrix

Matrix 1 combined likelihood (Unlikely/Somewhat likely/Likely/Very likely) and Matrix 2 final risk rating (Low/Moderate/High/Extreme)

Mitigation

Pruning and load reduction, cabling and bracing, target relocation, access restriction, removal, residual risk, and owner risk-acceptance decisions

Documentation & Reporting

The ISA Basic Tree Risk Assessment Form, defensible reporting with assumptions and limitations, re-inspection intervals, and recording owner decisions

How to Pass the ISA TRAQ Exam

What You Need to Know

Passing score: 75% (pass/fail)
Assessment: 110 multiple-choice questions over 2 hours on the written exam, plus a field/performance component; 75% to pass (reported pass/fail). This practice bank is 100 selected-response items.
Time limit: 2 hours (written exam)
Exam fee: ~$625 ISA members / ~$750 non-members for the course-and-exam package

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ISA TRAQ Study Tips from Top Performers

1Memorize the three rating scales and keep them straight: likelihood of failure (Improbable/Possible/Probable/Imminent), consequences (Negligible/Minor/Significant/Severe), and the final risk rating (Low/Moderate/High/Extreme)

2Practice running the two matrices: Matrix 1 combines failure and impact likelihood; Matrix 2 combines that with consequences to give the risk rating

3Know the three assessment levels cold: Level 1 limited visual (population screen), Level 2 basic 360-degree ground inspection, Level 3 advanced with specialized tools

4Tie every likelihood rating to the assessment time frame, and remember occupancy rate (Rare/Occasional/Frequent/Constant) drives likelihood of impact

5Study tree biomechanics: bending moment increases with limb length and end weight, and decay reduces residual sound wood and strength

6Complete all 100 practice questions and review every miss with the AI tutor before sitting the exam

Frequently Asked Questions

How many questions are on the ISA TRAQ written exam and how long is it?

The TRAQ written exam has 110 multiple-choice questions and is allotted two hours. Candidates also complete a field/performance assessment, and approximately 75% is needed to pass (ISA reports results as pass or not pass).

What score do I need to pass the TRAQ exam?

Roughly 75% is required to pass the TRAQ written exam, which is reported on a pass/fail basis. Because the exam spans biology, biomechanics, loads, targets, the risk matrix, mitigation, and reporting, balanced study across all areas is important.

What are the prerequisites for the TRAQ qualification?

You must hold a qualifying credential such as ISA Certified Arborist or Board Certified Master Arborist, a relevant arboriculture, forestry, or horticulture degree, an ASCA Registered Consulting Arborist designation, or an approved national or state certification.

What is the TRAQ risk matrix and what ratings does it produce?

TRAQ uses two matrices. Matrix 1 combines likelihood of failure with likelihood of impact into a combined likelihood (Unlikely, Somewhat likely, Likely, Very likely). Matrix 2 crosses that with consequences (Negligible, Minor, Significant, Severe) to produce a final risk rating of Low, Moderate, High, or Extreme.

How long is the TRAQ qualification valid?

TRAQ is valid for five years from the date it is earned. To renew, the holder must take the course and pass the exam again, reflecting evolving standards and best practices in tree risk assessment.

Is this free TRAQ practice as good as paid prep?

Our 100 practice questions cover the same content as the TRAQ course and ANSI A300 Part 9 methodology, with a teaching explanation for every answer plus free daily AI tutor interactions. All content is free forever and updated for 2026.