CTSP Certified Treecare Safety Professional Exam — Questions and Answers

Question 1: According to ANSI Z133, what is a primary requirement for communication between a worker aloft and ground personnel before cutting and dropping limbs?

All communications must be conducted via two-way radio to ensure clarity and documentation.
A loud, audible signal, such as a whistle or air horn, must be used before each cut.
A communication protocol must be established and understood by all crew members during the pre-job briefing. (Correct answer)
The worker aloft must receive a verbal 'all clear' from every ground worker individually.

Correct answer: A communication protocol must be established and understood by all crew members during the pre-job briefing.

ANSI Z133 Sections 3.4.4, 6.1.5, and 8.5.10 emphasize that a communication protocol, which can include verbal commands, hand signals, or radios, must be established, reviewed, and understood by the entire crew before work begins. This ensures everyone knows their roles and the signals to be used, which is more critical than the specific method of communication.

Question 2: What does a Total Recordable Incident Rate (TRIR) measure?

The ratio of near-misses to actual injuries
The number of OSHA recordable incidents per 100 full-time workers (Correct answer)
The percentage of workers who received safety training
The total cost of all workers' compensation claims per year

Correct answer: The number of OSHA recordable incidents per 100 full-time workers

TRIR = (Number of recordable incidents × 200,000) ÷ total hours worked, expressed per 100 full-time equivalent workers.

Question 3: What is the primary goal of a Behavior-Based Safety (BBS) observation program in a tree care company?

To shift safety culture from reactive (incident-driven) to proactive (behavior-driven) through peer feedback and data collection (Correct answer)
To reduce insurance premiums by demonstrating OSHA compliance to underwriters
To create a documented record of unsafe acts for disciplinary proceedings
To assign individual blame for near-miss incidents so root causes can be isolated

Correct answer: To shift safety culture from reactive (incident-driven) to proactive (behavior-driven) through peer feedback and data collection

A BBS program uses structured peer observations to identify at-risk behaviors before they cause harm. The data collected reveals patterns in the work environment or culture that produce unsafe behavior, enabling proactive interventions. The program's success depends on a non-punitive, trust-based culture where observation is seen as coaching, not surveillance.

Question 4: When conducting a post-incident investigation, which method is most effective for identifying root causes?

Consulting insurance adjusters before interviewing witnesses
Using a 5-Why analysis or fishbone diagram to trace causal chains (Correct answer)
Reviewing only equipment maintenance logs
Interviewing only the injured worker

Correct answer: Using a 5-Why analysis or fishbone diagram to trace causal chains

Structured root-cause analysis tools like 5-Why or fishbone diagrams systematically trace contributing factors back to underlying systemic causes.

Question 5: An employer wants to benchmark their tree care safety program against industry peers. Which resource provides the most relevant industry-specific incident rate data?

BLS Industry Injury and Illness data for NAICS code 561730 (Landscaping Services) (Correct answer)
Local chamber of commerce business reports
ISA Best Management Practices guidelines only
Company-internal five-year rolling averages

Correct answer: BLS Industry Injury and Illness data for NAICS code 561730 (Landscaping Services)

The Bureau of Labor Statistics (BLS) publishes annual injury and illness data by NAICS code, allowing companies to compare their TRIR against the landscape services industry benchmark.

Question 6: A tree care employer with 10 or fewer employees is still subject to which OSHA recordkeeping requirement?

Maintaining full OSHA 300 logs at all times
Posting OSHA 300A summary forms year-round
Reporting any work-related fatality within 8 hours to OSHA (Correct answer)
Filing annual injury summaries with the Department of Labor

Correct answer: Reporting any work-related fatality within 8 hours to OSHA

All employers regardless of size must report work-related fatalities to OSHA within 8 hours and hospitalizations within 24 hours.

Question 7: Which of the following best describes 'administrative controls' as a corrective action following an incident?

Using personal protective equipment
Changing work procedures, schedules, or supervision practices (Correct answer)
Substituting a hazardous tool with a safer alternative
Installing machine guards or physical barriers

Correct answer: Changing work procedures, schedules, or supervision practices

Administrative controls involve changing how work is organized or performed, such as modifying procedures, rotation schedules, or supervision levels.

Question 8: A CTSP observes a new ground worker, eager to impress, consistently standing within the drop zone to clear brush more quickly. What is the MOST effective initial leadership action to foster a positive safety culture?

Privately coach the worker, explaining the specific risks and demonstrating the correct positioning. (Correct answer)
Immediately remove the worker from the job site for the remainder of the day.
Ignore the behavior this time, as the worker is being highly productive.
Publicly reprimand the worker during the job briefing to make an example of them.

Correct answer: Privately coach the worker, explaining the specific risks and demonstrating the correct positioning.

Effective safety leadership focuses on coaching and education rather than punishment. A private conversation allows the CTSP to correct the unsafe behavior, explain the 'why' behind the rule (the risk of being struck by falling objects), and build a trusting relationship where the employee feels comfortable learning without fear of humiliation.

Question 9: A tree assessment reveals a large crack running vertically through the trunk. Which term describes this condition?

Shear crack with potential for rapid failure (Correct answer)
Frost crack only
Radial shake unrelated to load
Compression failure on the tension side

Correct answer: Shear crack with potential for rapid failure

A vertical crack through the trunk can indicate a shear crack caused by torsional or bending loads and presents a significant failure risk.

Question 10: What is 'step potential' in the context of electrical hazards during tree work?

The electrical charge stored in a tree's root system
The voltage difference between two points on the ground that a worker's feet can span (Correct answer)
The voltage required to activate a ground fault circuit interrupter
The potential energy of a falling tree near power lines

Correct answer: The voltage difference between two points on the ground that a worker's feet can span

Step potential is the voltage difference between two ground points separated by a step distance, which can drive current through a worker's body when a downed energized line contacts the ground.

Question 11: Under OSHA's electrical safety standard, what class of hard hat is required for protection against high-voltage electrical hazards?

Class G
Class A
Class C
Class B (Correct answer)

Correct answer: Class B

Class B hard hats are designed to protect against high-voltage electrical shock and burns up to 20,000 volts.

Question 12: What is the recommended frequency for reviewing and updating a company's written safety program?

Only after a serious injury or fatality occurs
Whenever a new supervisor joins the company
At least annually and whenever significant changes in operations or regulations occur (Correct answer)
Every five years during ISO certification renewal

Correct answer: At least annually and whenever significant changes in operations or regulations occur

Safety programs should be reviewed at minimum annually and updated when operations change or new regulations are enacted.

Question 13: Which of the following scenarios would NOT require an OSHA injury and illness recordkeeping entry?

A worker is placed on restricted duty following a shoulder injury
A worker receives prescription medication for a work-related back strain
A worker is hospitalized overnight due to a fall from a tree
A worker receives over-the-counter medication and a bandage for a minor cut (Correct answer)

Correct answer: A worker receives over-the-counter medication and a bandage for a minor cut

Minor injuries treated only with over-the-counter medication and first aid supplies are not OSHA recordable.

Question 14: According to the principles of Human and Organizational Performance (HOP), what is the most fundamental belief about human error?

Human error only occurs with inexperienced workers who lack proper training.
Human error is inevitable, and the focus should be on building resilient systems that anticipate and manage it. (Correct answer)
Human error is a choice and can be eliminated through strict policies and punishment.
Human error is a sign of a bad employee and should result in immediate termination.

Correct answer: Human error is inevitable, and the focus should be on building resilient systems that anticipate and manage it.

The Human and Organizational Performance (HOP) framework acknowledges that humans are fallible and errors are inevitable. Instead of blaming individuals, HOP focuses on understanding the systemic factors that contribute to errors and building more resilient work processes and systems to prevent incidents or mitigate their consequences.

Question 15: Which knot is specifically recommended by ANSI Z133 for tying the climbing line to the climber's saddle when using a bowline-on-a-bight configuration?

The bowline must be tied with a minimum of four tucks for compliance
The knot must include a secondary locking mechanism such as a safety or stopper knot (Correct answer)
A figure-eight on a bight is the only ANSI-approved knot for saddle attachment
ANSI Z133 prohibits knot connections directly to the saddle bridge

Correct answer: The knot must include a secondary locking mechanism such as a safety or stopper knot

ANSI Z133 requires that any knot used for tie-in incorporate a locking or safety backup to prevent accidental capsizing or untying under load.

Question 16: During a complex removal over a house, a climber and ground person use a specific command-and-response communication system before any cuts are made. This system is a critical element for:

Increasing the speed of the removal operation.
Reducing the physical strain on the climber.
Meeting the minimum requirements for an insurance audit.
Ensuring clear and confirmed understanding to prevent incidents. (Correct answer)

Correct answer: Ensuring clear and confirmed understanding to prevent incidents.

Due to high noise levels from equipment, clear communication is vital. A command-and-response system, where a command like 'Stand Clear' must be followed by an 'All Clear' response, ensures that messages are not just sent but are also received and understood before a potentially hazardous action is taken. This prevents misunderstandings that could lead to serious incidents.

Question 17: Which OSHA recordkeeping form is used to record each work-related injury or illness?

OSHA Form 302
OSHA Form 300A
OSHA Form 301
OSHA Form 300 (Correct answer)

Correct answer: OSHA Form 300

OSHA Form 300 is the Log of Work-Related Injuries and Illnesses used to record each incident.

Question 18: A CTSP conducting a job site safety briefing should verify that all crew members understand what at minimum before work begins?

The property owner's wishes and tree species present
Weather forecast and estimated job duration
Only the work schedule and pay rate
The job hazards, individual roles, emergency procedures, and the location of first aid equipment (Correct answer)

Correct answer: The job hazards, individual roles, emergency procedures, and the location of first aid equipment

A pre-job safety briefing must cover identified hazards, each person's role, emergency response procedures, and first aid kit location to prepare the crew for safe operations.

Question 19: What is the primary purpose of establishing a drop zone during tree removal operations?

To designate where cut pieces will fall and keep non-essential personnel clear (Correct answer)
To outline the legal boundaries of the work property
To indicate where the aerial lift should be positioned
To mark safe standing areas for all ground crew members

Correct answer: To designate where cut pieces will fall and keep non-essential personnel clear

A drop zone designates the landing area for cut pieces and must be kept clear of all non-essential personnel to prevent struck-by injuries.

Question 20: According to behavioral safety principles, which type of consequence is MOST effective at reinforcing safe behavior in tree care workers?

Uncertain, immediate, and negative consequences
Certain, immediate, and positive consequences (Correct answer)
Uncertain, delayed, and negative consequences
Certain, delayed, and negative consequences

Correct answer: Certain, immediate, and positive consequences

Behavioral safety research shows that consequences that are certain (will definitely happen), immediate (occur right away), and positive (something the worker values) most powerfully shape behavior. This is why discipline alone — which is typically delayed and negative — is less effective at changing behavior than positive reinforcement applied consistently.

Question 21: An aerial lift operator becomes unresponsive in the bucket 30 feet off the ground. What is the preferred first rescue action for ground crew?

Climb to the bucket using a ladder and administer first aid in the elevated position
Wait for emergency services and do not approach the machine
Cut the hydraulic lines to allow gravity to lower the boom
Attempt to lower the bucket using the ground controls at the base of the machine (Correct answer)

Correct answer: Attempt to lower the bucket using the ground controls at the base of the machine

Most aerial lift machines have ground-level override controls specifically for rescue situations. Ground crew should use these controls to lower the bucket safely. Cutting hydraulic lines or unauthorized climbing creates additional hazards and is not an approved rescue method.

Question 22: Which tree defect is characterized by a sudden, unpredictable failure of large branches during calm, hot weather in summer?

Included bark splitting
Summer branch drop (sudden branch drop) (Correct answer)
Frost crack
Compression wood failure

Correct answer: Summer branch drop (sudden branch drop)

Summer branch drop is a poorly understood phenomenon where large limbs fail without warning during hot, dry, calm conditions.

Question 23: To foster a robust safety culture, a CTSP should prioritize activities that encourage employee involvement. Which of the following is the best example of this principle in action?

Posting OSHA regulations on the breakroom bulletin board.
Establishing a safety committee with representation from all job roles. (Correct answer)
Inviting an external consultant to conduct all safety audits.
Having the company owner write all safety policies.

Correct answer: Establishing a safety committee with representation from all job roles.

Involving employees from various levels and roles in a safety committee empowers them, provides valuable front-line perspective on hazards, and increases buy-in for safety initiatives. This collaborative approach is a hallmark of a strong safety culture.

Question 24: While an arborist is aloft in an aerial lift, the ground crew's primary responsibilities include maintaining site security, operating the chipper, and what other critical safety function?

Pre-treating the next tree to be worked on.
Sharpening chainsaws for the operator.
Documenting work progress with photographs.
Observing the operator and surrounding area for changing conditions. (Correct answer)

Correct answer: Observing the operator and surrounding area for changing conditions.

A key role of the ground crew is to act as a second set of eyes for the aerial lift operator. This includes watching for changing hazards like new pedestrian or vehicle traffic, unexpected weather, or hazards in the tree that the operator may not see from their position. This constant monitoring and communication is vital for preventing incidents.

Question 25: What is the ANSI/ASTM standard that covers chainsaw chaps and leg protection for tree care workers?

OSHA 1926.503
ANSI Z87.1
ANSI Z133
ASTM F1897 (Correct answer)

Correct answer: ASTM F1897

ASTM F1897 is the standard specification for leg protection (chainsaw-resistant chaps/pants) used in chainsaw operations.

Question 26: What is the primary purpose of preserving a worksite following a serious incident?

To allow the crew to resume work safely
To comply with insurance documentation requirements only
To enable a thorough investigation without disturbing evidence (Correct answer)
To prevent customers from entering the area

Correct answer: To enable a thorough investigation without disturbing evidence

Preserving the scene maintains evidence integrity, which is critical for an accurate incident investigation.

Question 27: A tree climber is operating a chainsaw aloft and experiences a sudden, violent upward and backward motion of the saw. This hazardous reactive force is known as kickback. Contact with which part of the guide bar is the primary cause of rotational kickback?

The top quadrant of the guide bar tip. (Correct answer)
The bottom quadrant of the guide bar tip.
The side of the guide bar, near the engine.
The chain tensioner screw.

Correct answer: The top quadrant of the guide bar tip.

Rotational kickback, the most common and dangerous type, occurs when the moving chain in the upper quadrant of the guide bar tip (the "kickback zone") contacts an object. The chain can snag, momentarily stopping and transferring the rotational energy back to the operator, causing the saw to pivot rapidly upward and backward.

Question 28: Which condition would most likely place a tree into the 'Poor' structural condition rating?

Slightly uneven crown distribution
Minor deadwood less than 2 inches in diameter
A single codominant stem with no included bark
Large open cavity occupying more than 30% of the trunk cross-section (Correct answer)

Correct answer: Large open cavity occupying more than 30% of the trunk cross-section

A large open cavity removing more than 30% of the trunk's cross-sectional area severely compromises structural integrity.

Question 29: A 'dead crotch' or dead branch attachment point is identified in the tree a climber intends to use for an anchor. The correct response is to:

Test the dead crotch with a sharp tug before committing body weight
Use the dead crotch only if it is at least 4 inches in diameter
Select a live, structurally sound anchor point elsewhere in the tree (Correct answer)
Wrap the dead crotch with rigging tape to reinforce it before use

Correct answer: Select a live, structurally sound anchor point elsewhere in the tree

Dead wood is structurally unreliable and can fail without warning; climbers must always select live, sound wood for climbing anchor points.

Question 30: Which industry consensus standard provides the most comprehensive safety requirements for arboricultural operations and is often referenced by OSHA?

NFPA 70E - Standard for Electrical Safety in the Workplace
OSHA 29 CFR 1910 - General Industry
ANSI Z133 - Arboricultural Operations Safety Requirements (Correct answer)
ANSI A300 (Part 1) - Pruning

Correct answer: ANSI Z133 - Arboricultural Operations Safety Requirements

The ANSI Z133 standard is the primary safety standard for the arboriculture industry in the United States. It provides detailed safety requirements for all aspects of tree care work and is frequently used by OSHA as a reference for enforcement.

Question 31: An arborist company self-audits its incident reports and notices a pattern of hand lacerations from hand tools. The MOST appropriate systemic response is to:

Conduct a task-specific hazard analysis of all hand tool operations and revise PPE, training, and procedures accordingly (Correct answer)
Require all workers to sign an acknowledgment of the hand tool safety policy
Issue cut-resistant gloves without further analysis and consider the matter closed
Replace all hand tools with power tools to reduce manual handling

Correct answer: Conduct a task-specific hazard analysis of all hand tool operations and revise PPE, training, and procedures accordingly

A pattern of similar injuries signals a systemic gap best addressed by a fresh hazard analysis followed by targeted updates to controls, training, and PPE.

Question 32: At what point during a tree felling operation should the feller call out 'timber'?

Only after the tree has fully contacted the ground
Before beginning any cuts to alert the crew
When the saw completes the back cut through the hinge
As soon as the tree begins to move and fall (Correct answer)

Correct answer: As soon as the tree begins to move and fall

'Timber' should be called as soon as the tree begins to fall to give all nearby workers time to move to their escape routes.

Question 33: A CTSP is developing a comprehensive safety program for a tree care company. Which of the following is the MOST critical foundational element for the program's success?

A written commitment to safety from all levels of management. (Correct answer)
A detailed disciplinary action plan for safety violations.
A subscription to a weather monitoring service for job site planning.
A monthly equipment inspection checklist for all machinery.

Correct answer: A written commitment to safety from all levels of management.

A successful safety program begins with a clear and demonstrated commitment from leadership. This top-down approach fosters a strong safety culture where every employee understands that safety is a core value of the organization, influencing all decisions and actions.

Question 34: When must an employer conduct a post-accident drug test under OSHA's anti-retaliation provisions (29 CFR 1904.35)?

Whenever an employee refuses to sign injury forms
Only when there is reasonable suspicion that drug use contributed to the incident (Correct answer)
Automatically after any OSHA recordable injury
After every reported near-miss

Correct answer: Only when there is reasonable suspicion that drug use contributed to the incident

OSHA's anti-retaliation rule allows post-accident testing only when there is an objectively reasonable basis to believe drug use may have contributed to the incident.

Question 35: Which document is typically completed first after a worker injury in a tree care operation?

First report of injury form (Correct answer)
Job hazard analysis
OSHA 300 log entry
Equipment maintenance log

Correct answer: First report of injury form

The first report of injury is the initial document filed after a workplace injury and triggers workers' compensation proceedings.

Question 36: Under ANSI Z133, when must a work-positioning lanyard be used in combination with a separate fall-arrest system?

Only when the ground crew requests it for liability purposes
Whenever the climber is above 20 feet
When climbing trees with a DBH greater than 24 inches
When working in a position where a fall could occur and the lanyard alone does not provide fall arrest (Correct answer)

Correct answer: When working in a position where a fall could occur and the lanyard alone does not provide fall arrest

ANSI Z133 requires a separate fall-arrest backup when a work-positioning lanyard is used, because positioning lanyards alone do not arrest falls.

Question 37: Which hierarchy of controls is considered MOST effective at eliminating a workplace hazard?

Personal protective equipment
Administrative controls
Engineering controls
Elimination (Correct answer)

Correct answer: Elimination

Elimination removes the hazard entirely and is the most effective control because it does not rely on human behavior or equipment.

Question 38: Which standard specifically governs arboricultural operations safety in the United States?

ASTM F887
NFPA 70E
ANSI Z133 (Correct answer)
OSHA 1910.269

Correct answer: ANSI Z133

ANSI Z133, American National Standard for Arboricultural Operations – Safety Requirements, is the primary safety standard for the tree care industry.

Question 39: Which of the following best describes a 'residual risk' after mitigation measures have been applied?

The remaining risk that still exists after mitigation actions are completed (Correct answer)
The original risk rating before any work was done
The risk posed only by secondary targets near the tree
The financial cost of removing a hazard tree

Correct answer: The remaining risk that still exists after mitigation actions are completed

Residual risk is the level of risk that remains after mitigation measures such as pruning, cabling, or removal have been implemented.

Question 40: Under OSHA's General Duty Clause, employers are required to:

Conduct weekly safety inspections by OSHA officers
Furnish a workplace free from recognized serious hazards (Correct answer)
Post daily weather alerts at job sites
Provide free medical insurance to all workers

Correct answer: Furnish a workplace free from recognized serious hazards

Section 5(a)(1) of the OSH Act requires employers to provide a workplace free from recognized hazards likely to cause serious harm or death.

Question 41: What is the primary role of a safety leader, such as a CTSP, in shaping a company's safety culture?

To complete safety paperwork to meet the minimum regulatory requirements.
To perform all high-risk tasks themselves to ensure they are done correctly.
To inspire, coach, and empower all employees to take ownership of their own and others' safety. (Correct answer)
To exclusively enforce rules and document every violation for disciplinary action.

Correct answer: To inspire, coach, and empower all employees to take ownership of their own and others' safety.

A CTSP's role transcends that of a simple rule enforcer. They are leaders who foster an environment where safety is a shared value. This involves coaching, mentoring, leading by example, and empowering employees to feel comfortable speaking up about safety concerns, ultimately building a culture where everyone is responsible for safety.

Question 42: When performing a tailgate safety meeting before a job, the crew leader should ensure that:

Only supervisors speak to avoid confusion
The meeting lasts at least 30 minutes to be effective
All crew members acknowledge understanding and sign an attendance record (Correct answer)
The meeting focuses only on the hazards from the previous job

Correct answer: All crew members acknowledge understanding and sign an attendance record

Documenting attendance confirms that all workers received the safety briefing, which supports accountability and legal compliance.

Question 43: When assessing a tree near a target, which factor MOST directly determines risk magnitude?

Tree species and age
Time of year the inspection occurs
Likelihood of failure multiplied by consequences (Correct answer)
Distance from the target to the tree

Correct answer: Likelihood of failure multiplied by consequences

Risk magnitude is determined by multiplying the likelihood of failure by the consequences if failure occurs.

Question 44: What is the purpose of a 'stop-work authority' policy in a tree care safety program?

To empower any worker to halt work when an imminent danger is observed (Correct answer)
To allow OSHA inspectors to halt operations
To give supervisors sole control over all job site decisions
To comply with insurance carrier audit requirements

Correct answer: To empower any worker to halt work when an imminent danger is observed

Stop-work authority policies empower every employee — regardless of rank — to stop work when they perceive an imminent safety hazard.

Question 45: A ground worker notices a limb is about to fall in an unexpected direction. The FIRST action should be to:

Contact the climber via radio immediately
Stop the chipper and wait for the all-clear
Shout a warning to all personnel and move to the pre-designated escape route (Correct answer)
Place additional cones around the drop zone

Correct answer: Shout a warning to all personnel and move to the pre-designated escape route

Immediate audible warning and movement to the pre-planned escape route is the priority to protect all workers from the unexpected hazard.

Question 46: Which of the following is an example of a PRIMARY failure mode in tree risk assessment?

A branch falling after being severed by a chainsaw
Whole tree windthrow due to root decay (Correct answer)
Lightning strike causing crown failure
A branch being broken by a falling neighboring tree

Correct answer: Whole tree windthrow due to root decay

Whole tree windthrow caused by root decay is a primary failure mode, meaning the tree fails due to its own structural deficiency rather than an external force.

Question 47: When rigging a limb for controlled lowering, what is the most critical factor to evaluate?

The number of ground crew members available to receive the piece
The color and brand of the rigging rope being used
The total height of the tree above the limb being removed
The estimated weight of the piece relative to the rigging system's working load limit (Correct answer)

Correct answer: The estimated weight of the piece relative to the rigging system's working load limit

The weight of the piece being lowered must not exceed the working load limit of all rigging components involved to prevent catastrophic failure.

Question 48: A crew leader for a tree care company starts every job by gathering the team to walk the site, identify potential hazards, outline the work plan, and confirm all necessary PPE and equipment is ready. This practice is a key component of:

Reactive safety management.
Lagging indicator analysis.
A proactive safety culture. (Correct answer)
A blame-based culture.

Correct answer: A proactive safety culture.

This scenario describes a pre-job briefing or site assessment, a cornerstone of a proactive safety culture. By identifying hazards and planning the work beforehand, the crew leader is taking preventative steps to mitigate risks before an incident can occur. This demonstrates leadership commitment and employee involvement, which are vital to a strong safety system.

Question 49: According to OSHA, what is the maximum allowable distance between an employee and an eye wash station in areas where harmful chemicals are used?

100 feet
75 feet
50 feet (Correct answer)
25 feet

Correct answer: 50 feet

OSHA requires that eye wash stations be within 50 feet or 10 seconds travel distance of areas where harmful chemicals are used.

Question 50: A crew member observes another worker performing an unsafe act but says nothing to avoid conflict. What organizational factor MOST likely caused this silence?

A weak safety culture where speaking up is not encouraged or rewarded (Correct answer)
Insufficient personal protective equipment on the job site
Lack of a formal written safety policy in the company handbook
The observing worker lacks CTSP certification

Correct answer: A weak safety culture where speaking up is not encouraged or rewarded

Peer silence about safety violations is a symptom of a weak safety culture where workers do not feel psychologically safe to speak up.

Question 51: What chainsaw maintenance task must be performed every time the chain is sharpened?

Flush the oil reservoir
Check and adjust the depth gauge (raker) height (Correct answer)
Replace the drive sprocket
Replace the guide bar

Correct answer: Check and adjust the depth gauge (raker) height

Depth gauges must be checked and filed down periodically as the cutters are sharpened, because if gauges become too tall relative to cutters, cutting efficiency drops and kickback risk can increase.

Question 52: When must a tree risk assessment be performed before tree care work begins?

Only when a client or property owner specifically requests a formal assessment
Only after a storm event has damaged trees on a property
Once per year for each tree on a managed property as a scheduled review
Before any climbing, rigging, or felling operation begins on a tree (Correct answer)

Correct answer: Before any climbing, rigging, or felling operation begins on a tree

A tree risk assessment must be performed before any climbing, rigging, or felling begins to identify hazards and determine how to mitigate them.

Question 53: A crew member suffers a deep laceration to the forearm from a chainsaw. After calling 911, the CORRECT first-aid response is to:

Bandage loosely and have the worker walk to the truck
Rinse the wound with water and apply antiseptic spray
Apply a tourniquet above the elbow immediately
Apply direct pressure with a clean cloth and elevate the arm (Correct answer)

Correct answer: Apply direct pressure with a clean cloth and elevate the arm

Direct pressure and elevation are the standard first-aid steps to control bleeding from a laceration before EMS arrives.

Question 54: When using a friction saver to lower a large section of trunk, what is the MOST important factor in preventing an uncontrolled fall that could strike workers?

Using a larger diameter rope for increased strength
Cutting the section into smaller pieces before rigging
Attaching the friction saver as high as possible on the trunk
Ensuring the ground crew maintains a safe position off to the side while tending the lowering line (Correct answer)

Correct answer: Ensuring the ground crew maintains a safe position off to the side while tending the lowering line

Ground crew positioning to the side of the load's path prevents struck-by injury if the rigging system fails or the load swings unexpectedly.

Question 55: According to OSHA, what is the primary responsibility of employers regarding workplace safety?

To keep a log of all workplace injuries
To provide a workplace free from recognized hazards (Correct answer)
To conduct annual safety inspections
To ensure all employees have CPR certification

Correct answer: To provide a workplace free from recognized hazards

Employers are responsible for providing a workplace free from recognized hazards that could cause death or serious physical harm.

Question 56: A tree care company is cited by OSHA for a 'willful' violation. This classification means the employer:

Failed to correct a previously cited violation within the abatement period
Intentionally and knowingly violated OSHA standards or was indifferent to worker safety (Correct answer)
Allowed a worker under 18 to operate hazardous equipment
Was unaware of the hazard but should have known about it

Correct answer: Intentionally and knowingly violated OSHA standards or was indifferent to worker safety

A willful violation is one where the employer knew about the hazard and consciously chose not to correct it, carrying the highest OSHA penalties.

Question 57: What is the greatest struck-by hazard during wood chipping operations?

Fuel spills from the chipper's engine during refueling
The weight and momentum of large branches being fed into the infeed
High-velocity debris ejected from the chipper's discharge chute (Correct answer)
Excessive noise levels from the chipper's engine during operation

Correct answer: High-velocity debris ejected from the chipper's discharge chute

Material ejected from the discharge chute at extremely high velocity is the primary struck-by hazard during chipping, capable of causing fatal injuries.

Question 58: Which type of Job Hazard Analysis (JHA) step focuses on identifying 'what could go wrong' for each task?

Task description
Control measure selection
PPE assignment
Hazard identification (Correct answer)

Correct answer: Hazard identification

Hazard identification is the JHA step where workers evaluate potential dangers associated with each discrete task.

Question 59: What is the primary goal of a 'safety culture' as opposed to a 'safety compliance' focus?

Documenting all safety activities for legal defense purposes
Meeting the minimum OSHA standards to avoid fines
Achieving the lowest possible workers' compensation premiums
Creating an environment where workers internalize and value safety independently (Correct answer)

Correct answer: Creating an environment where workers internalize and value safety independently

Safety culture means workers understand why safety matters and make safe choices regardless of supervision, going beyond mere rule compliance.

Question 60: A ground worker observes that a co-worker has been struck by a falling branch and is unconscious. After calling 911, the NEXT priority is to:

Remove the worker from the work zone immediately regardless of spinal injury risk
Document the incident in the safety log
Clear the drop zone of all additional debris before rendering aid
Administer CPR if the worker is not breathing and there is no pulse (Correct answer)

Correct answer: Administer CPR if the worker is not breathing and there is no pulse

After activating EMS, providing CPR for an unresponsive, pulseless victim is the highest life-safety priority guided by standard first-aid protocols.

Question 61: Chainsaw chaps are rated by classes. Class 1 chaps protect against chain speeds up to:

2,750 ft/min
4,000 ft/min
3,300 ft/min
1,650 ft/min (Correct answer)

Correct answer: 1,650 ft/min

ASTM Class 1 chainsaw chaps are designed to protect against chain speeds up to 1,650 feet per minute, suitable for lower-speed saws.

Question 62: Which type of traffic control device is used to guide drivers through a temporary work zone by physically separating travel lanes from the work area?

Variable message signs
Flaggers positioned at each end
Channelizing devices (cones, drums, barriers) (Correct answer)
Warning signs only

Correct answer: Channelizing devices (cones, drums, barriers)

Channelizing devices such as cones, drums, and barriers physically separate and guide traffic through or around a temporary work zone.

Question 63: Which of the following soil conditions most increases the risk of wind-throw for a large tree?

Soil recently amended with compost
Deep clay soil with high organic content
Well-drained sandy loam
Shallow, compacted, or saturated soil limiting root depth (Correct answer)

Correct answer: Shallow, compacted, or saturated soil limiting root depth

Shallow, compacted, or saturated soils prevent deep root anchorage, greatly increasing vulnerability to wind-throw.

Question 64: The '5 Whys' technique used in incident investigation is designed to:

Identify five workers responsible for an incident
Document five witness perspectives on the incident
Determine five corrective actions required by OSHA
Drill down to root causes by repeatedly asking why an event occurred (Correct answer)

Correct answer: Drill down to root causes by repeatedly asking why an event occurred

The 5 Whys method iteratively asks 'why' to move beyond symptoms and identify the underlying root cause of an incident.

Question 65: A crew leader observes that a new ground worker is consistently failing to make eye contact or acknowledge commands from the climber before entering the drop zone. What is the most appropriate action for the CTSP-certified crew leader to take?

Ignore the behavior as the new worker will learn from experience.
Stop the work immediately, and provide one-on-one coaching on proper communication protocols and drop zone safety. (Correct answer)
Publicly reprimand the worker to make an example of them.
Wait until the end of the day to discuss the issue privately.

Correct answer: Stop the work immediately, and provide one-on-one coaching on proper communication protocols and drop zone safety.

This situation represents an imminent danger. A core responsibility of a CTSP is to act as a coach and correct unsafe behavior immediately. Stopping the work allows the crew leader to address the unsafe action directly, explain the risks, and retrain the employee on the correct, safe procedure without endangering anyone.

Question 66: During aerial lift operations, a ground-based crew member must:

Hold the bucket stabilization rope at all times
Stand directly beneath the work zone to catch falling debris
Stay clear of the drop zone and maintain visual communication with the operator (Correct answer)
Operate the ground controls simultaneously with the operator

Correct answer: Stay clear of the drop zone and maintain visual communication with the operator

Ground crew must stay out of the drop zone to avoid struck-by hazards and maintain sight lines and communication with the bucket operator.

Question 67: A CTSP is leading a tailgate safety meeting before starting a large tree removal near a busy road. Which of the following topics is MOST critical to cover for this specific job?

Proper chainsaw maintenance and chain sharpening techniques.
The procedure for setting up a secure work zone and managing pedestrian/vehicle traffic. (Correct answer)
A review of the company's sick leave policy.
A demonstration of advanced climbing knots.

Correct answer: The procedure for setting up a secure work zone and managing pedestrian/vehicle traffic.

While all topics are related to safety, the most critical and immediate hazard for this specific scenario is the proximity to a busy road. Establishing a secure work zone with proper signage, cones, and flaggers is essential to protect both the public and the crew from harm before any tree work begins.

Question 68: What is the function of the face cut (notch) in directional tree felling?

To control the direction of fall by creating a hinge that guides the tree (Correct answer)
To remove bark and outer wood before beginning the main felling cut
To severely weaken the tree so it falls more quickly when the back cut is made
To reduce the tree's overall weight before it begins to fall

Correct answer: To control the direction of fall by creating a hinge that guides the tree

The face cut (notch) creates the hinge that guides the tree's direction of fall and prevents it from splitting prematurely during the felling process.

Question 69: What is the correct procedure when aerial lift outriggers cannot be fully deployed due to a curb or obstacle?

Use the truck's weight as a counterbalance and omit outriggers
Relocate the truck to a position where full outrigger deployment is possible (Correct answer)
Deploy available outriggers and proceed with reduced boom height
Deploy only the rear outriggers for stability

Correct answer: Relocate the truck to a position where full outrigger deployment is possible

If outriggers cannot be fully deployed, the truck must be repositioned; partial outrigger deployment does not provide the stability required for safe aerial operations.

Question 70: An effective safety training program for new arborists should be documented. This documentation primarily serves to:

Allow experienced crew members to opt-out of future training.
Create marketing materials for attracting new clients.
Satisfy the requirements for company-wide bonuses.
Provide evidence of compliance with OSHA regulations and industry standards. (Correct answer)

Correct answer: Provide evidence of compliance with OSHA regulations and industry standards.

OSHA requires employers to provide and document safety training. Proper documentation serves as proof that the employer has fulfilled their legal obligation to train employees on hazard recognition, safe work practices, and emergency procedures, which is crucial during an inspection or after an incident.

Question 71: Which of the following is a key characteristic of an effective tailgate safety meeting?

It should be brief, job-site specific, and encourage crew participation. (Correct answer)
It should cover at least five different safety topics in detail.
It should last for at least one hour to ensure all information is covered.
It should be conducted by a senior manager from the main office.

Correct answer: It should be brief, job-site specific, and encourage crew participation.

Tailgate or toolbox meetings are most effective when they are short (10-15 minutes), focused on the specific hazards and tasks of the day's job, and interactive, allowing crew members to ask questions and share their own experiences.

Question 72: What is the purpose of a running bowline knot in tree rigging operations?

To tie off the end of the rope to prevent unraveling
To join two rigging ropes of different diameters together
To create a fixed anchor loop on the rigging line
To create a noose that tightens around a limb for controlled lowering (Correct answer)

Correct answer: To create a noose that tightens around a limb for controlled lowering

A running bowline forms a sliding noose that cinches around a limb, allowing it to be secured and lowered in a controlled manner.

Question 73: A risk assessment matrix typically combines which two primary factors to determine overall risk rating?

Inspection frequency and maintenance cost
Tree height and canopy spread
Tree age and species
Likelihood of failure and consequences of failure (Correct answer)

Correct answer: Likelihood of failure and consequences of failure

The ISA risk matrix crosses likelihood of failure with consequences of failure to produce an overall risk rating.

Question 74: An arborist notices that a co-worker is operating a chainsaw without chaps. Under OSHA's General Duty Clause, what responsibility does the arborist have?

Immediately shut down all work until chaps are provided
Document the violation in the incident log
Report the observation to the crew leader or supervisor (Correct answer)
No responsibility; PPE violations are the employer's problem only

Correct answer: Report the observation to the crew leader or supervisor

Workers have a duty to report recognized hazards to supervisors so corrective action can be taken.

Question 75: During a safety program audit, you discover that incident investigations consistently identify 'worker error' as the root cause. What does this most likely indicate?

The investigation process is failing to identify systemic or management causes (Correct answer)
Workers need more experience before being trusted on the job
The hiring process needs stricter background checks
The workforce needs more disciplinary action

Correct answer: The investigation process is failing to identify systemic or management causes

Repeatedly blaming 'human error' usually signals a shallow investigation process that misses underlying systemic, training, or management system failures.

Question 76: When performing a tree risk assessment, for a significant risk to exist, there must be a tree with a defect and what other critical component?

A qualified arborist to perform the inspection.
A history of previous failures from the same tree species.
Advanced decay detection equipment.
A target. (Correct answer)

Correct answer: A target.

For risk to exist, there must be a combination of a hazard (the defective tree or tree part) and a target (people, property, or activities that could be damaged or injured if the tree fails). Without a target, there is no risk, even if the tree has a high likelihood of failure.

Question 77: During an incident investigation, witness statements should be collected:

As soon as safely possible while memories are fresh (Correct answer)
After all physical evidence has been collected and analyzed
Only from supervisors and foremen
Only if the incident results in lost-time injury

Correct answer: As soon as safely possible while memories are fresh

Witness accounts are most accurate shortly after an event before memory fades or details are influenced by others.

Question 78: Which hazard is unique to aerial lift operations compared to conventional tree climbing?

Electric shock from power lines
Tip-over of the support equipment (Correct answer)
Struck-by from branches
Falling objects

Correct answer: Tip-over of the support equipment

Tip-over of the truck itself is a hazard specific to aerial lift operations that tree climbers do not face; improper setup or slope can cause catastrophic vehicle overturn.

Question 79: When a worker contacts a tree that is simultaneously touching an energized overhead conductor, the primary injury mechanism is:

Electrocution via a conductive path through the tree and the worker's body to ground (Correct answer)
Ground fault tripping the circuit breaker
Arc flash from the conductor surface
Step potential between the worker's feet

Correct answer: Electrocution via a conductive path through the tree and the worker's body to ground

Current flows from the energized conductor through the tree, through the worker's body, and to ground, completing the circuit and causing electrocution.

Question 80: Why is high-visibility (hi-vis) clothing required for ground crew during tree care operations?

It ensures ground crew are visible to the climber, equipment operators, and passing vehicle traffic (Correct answer)
It is only required when the work site is adjacent to a public highway
It satisfies an aesthetic branding requirement for professional crews
It reflects sunlight to help workers manage heat stress during summer operations

Correct answer: It ensures ground crew are visible to the climber, equipment operators, and passing vehicle traffic

Hi-vis clothing makes ground crew members visible to climbers overhead, equipment operators, and vehicle traffic, which is critical to preventing struck-by incidents.

Question 81: After a serious tree care incident, which action should be taken FIRST at the scene?

Complete the OSHA 301 incident report
Photograph the scene for litigation purposes
Provide emergency medical care and secure the scene (Correct answer)
Contact the company's public relations team

Correct answer: Provide emergency medical care and secure the scene

Providing emergency medical care to injured workers and securing the scene to prevent further injury are always the first priorities after an incident.

Question 82: In the context of a tree care incident investigation, a 'direct cause' is best defined as:

The specific unsafe act or hazardous condition that immediately preceded the incident. (Correct answer)
The underlying organizational or management system failure.
A recommendation for corrective action to prevent recurrence.
The financial liability resulting from the incident.

Correct answer: The specific unsafe act or hazardous condition that immediately preceded the incident.

An incident investigation typically identifies different levels of causes. The 'direct cause' is the most immediate and obvious reason for the incident, often an unsafe behavior (e.g., not wearing PPE) or an unsafe condition (e.g., a faulty carabiner) that was present just before the event occurred. Root cause analysis seeks to find the indirect and root causes that allowed the direct cause to exist.

Question 83: During an emergency involving an injured climber, what should be the FIRST action taken by the crew on the ground after witnessing the incident?

Call 911 and provide the location and nature of the emergency.
Secure the site to prevent further injuries and assess the scene for hazards. (Correct answer)
Immediately attempt a rescue by climbing the same tree.
Begin administering first aid to the injured climber.

Correct answer: Secure the site to prevent further injuries and assess the scene for hazards.

The first priority in any emergency is to ensure no one else gets hurt. Before initiating a rescue or calling for help, the crew must perform a rapid scene assessment to identify any remaining hazards (like electrical wires or unstable limbs) and secure the area. This prevents the situation from worsening and protects rescuers.

Question 84: Which type of saw chain requires the sharpest filing angle and delivers the fastest cutting but is most prone to kickback?

Low-kickback chain
Semi-chisel chain
Micro-chisel chain
Full-chisel chain (Correct answer)

Correct answer: Full-chisel chain

Full-chisel chains have square-cornered cutters that cut aggressively and quickly but are more susceptible to kickback compared to semi-chisel designs.

Question 85: What must an operator do before moving a boom truck to a new location with the boom elevated?

Call a ground spotter to walk alongside
Engage four-wheel drive
Sound the horn twice
Retract and lower the boom to the travel position (Correct answer)

Correct answer: Retract and lower the boom to the travel position

Booms must be fully retracted and lowered to the stowed travel position before driving to prevent tip-over from dynamic forces and clearance hazards.

Question 86: A tree crew is setting up an aerial lift on a slight slope to access a tree. What is the most critical requirement for ensuring the stability of the unit before raising the boom?

Positioning the truck so the boom operates on the uphill side.
Ensuring the fuel tank is full to provide maximum counterweight.
Engaging the parking brake and using wheel chocks.
Confirming the truck is leveled within the manufacturer's specified limits. (Correct answer)

Correct answer: Confirming the truck is leveled within the manufacturer's specified limits.

Aerial lifts have strict operational limits for working on a slope. The most critical step is to ensure the chassis is level to the degree specified by the manufacturer, often using outriggers and pads. Operating on a slope beyond these limits can shift the center of gravity and lead to a catastrophic tip-over, which is a leading cause of fatalities with this equipment. While brakes and chocks are important, they do not guarantee the unit is level.

Question 87: A tree crew must work after dark on a roadside. Which additional requirement applies compared to daytime operations?

Flaggers are no longer needed if cones are in place
High-visibility vests are optional if headlamps are worn
The work zone buffer can be reduced by half
All channelizing devices must include retroreflective material or lighting (Correct answer)

Correct answer: All channelizing devices must include retroreflective material or lighting

MUTCD and ANSI Z133 require retroreflective or illuminated channelizing devices for nighttime work zones to ensure visibility to drivers.

Question 88: A ground worker is using a chainsaw to cut small-diameter branches on a brush pile. The worker is wearing a helmet, safety glasses, and hearing protection, but is not wearing chainsaw chaps or pants. According to the ANSI Z133 standard, what is the correct assessment of this situation?

The worker must immediately stop work and put on appropriate leg protection before resuming any chainsaw use on the ground. (Correct answer)
The worker is permitted to continue as long as the chainsaw has a functioning chain brake and low-kickback chain.
The worker is compliant, as leg protection is only required for felling or bucking large logs.
The worker can continue without leg protection if they have documented advanced training in precision cutting techniques.

Correct answer: The worker must immediately stop work and put on appropriate leg protection before resuming any chainsaw use on the ground.

ANSI Z133 requires that cut-resistant leg protection be worn by all employees when operating a chainsaw on the ground. There are no exceptions based on the size of the wood being cut, the operator's experience level, or other saw safety features.

Question 89: After a serious incident on a tree care job site, OSHA requires employers to report an in-patient hospitalization within:

72 hours
8 hours
24 hours (Correct answer)
5 business days

Correct answer: 24 hours

OSHA 29 CFR 1904.39 requires employers to report any in-patient hospitalization within 24 hours of learning about the incident.

Question 90: OSHA's Hazard Communication Standard (HazCom) requires Safety Data Sheets (SDS) to have how many sections?

20
10
8
16 (Correct answer)

Correct answer: 16

The GHS-aligned HazCom standard requires SDS documents to follow a 16-section format.

Question 91: Lightning-struck trees present which specific hazard that may not be immediately visible?

Internal steam damage and internal splits that weaken structural integrity (Correct answer)
Magnetized wood that interferes with compass navigation
Elevated sap pressure causing bark to eject suddenly
Residual electrical charge stored in the wood

Correct answer: Internal steam damage and internal splits that weaken structural integrity

Lightning can vaporize internal moisture, creating internal steam damage and hidden longitudinal splits that compromise the tree's structural integrity without obvious external signs.

Question 92: Which OSHA standard specifically governs the use of chainsaws and personal protective equipment for tree care operations?

29 CFR 1910.266 (Logging Operations) (Correct answer)
29 CFR 1926.20 (General Safety Requirements)
29 CFR 1910.132 (PPE General Requirements)
29 CFR 1926.1153 (Silica Standard)

Correct answer: 29 CFR 1910.266 (Logging Operations)

29 CFR 1910.266 covers logging operations including chainsaw use and required PPE, which applies to many tree care tasks.

Question 93: Girdling roots are a hazard to tree stability primarily because they:

Compress the root flare, reducing the effective diameter of the structural root zone (Correct answer)
Increase water uptake, causing trunk swell and crown overload
Block phloem transport, starving roots of sugars
Harbor wood-boring insects that move into the trunk

Correct answer: Compress the root flare, reducing the effective diameter of the structural root zone

Girdling roots constrict the trunk and structural root zone, reducing the tree's ability to anchor itself and transport water and nutrients, leading to decline and instability.

Question 94: What type of PPE is specifically designed to protect tree workers against chainsaw contact, including kickback?

A hard hat with face shield attachment
A high-visibility vest with reflective striping
Chainsaw-resistant chaps or pants containing cut-resistant fiber material (Correct answer)
Safety glasses with side shields

Correct answer: Chainsaw-resistant chaps or pants containing cut-resistant fiber material

Chainsaw chaps or cut-resistant pants contain fibrous material that jams the saw chain upon contact, stopping the chain before it penetrates deeply.

Question 95: Which of the following pieces of personal protective equipment (PPE) is required by ANSI Z133 for an arborist operating a chainsaw aloft, but is NOT required for a ground worker operating a chainsaw?

A helmet compliant with ANSI Z89.1.
Cut-resistant leg protection.
Eye protection compliant with ANSI Z87.1.
A second point of attachment or work-positioning lanyard. (Correct answer)

Correct answer: A second point of attachment or work-positioning lanyard.

When working aloft, an arborist must have at least two means of being secured, such as a primary climbing line and a work-positioning lanyard. This is a critical component of the fall protection system specific to aerial work. While a helmet, eye protection, and leg protection are required for both ground and aerial chainsaw operators, the second point of attachment is uniquely required for working at height.

Question 96: A bucket truck is parked on a 5-degree side slope. The manufacturer's limit is 3 degrees. What should the operator do?

Proceed cautiously at reduced height
Reduce load in the bucket by 50% and continue
Set the parking brake and proceed normally
Reposition the truck to a flatter surface or use outriggers fully extended (Correct answer)

Correct answer: Reposition the truck to a flatter surface or use outriggers fully extended

Operating beyond the manufacturer's rated side slope limit requires repositioning or proper leveling; exceeding the limit risks tip-over regardless of other precautions.

Question 97: An arborist inspects a tree and notes significant dieback in the upper crown with epicormic sprouting lower on the trunk. Which condition does this pattern typically suggest?

Successful recovery from a pruning wound
Normal seasonal growth flush
Pest infestation limited to the crown only
Decline or chronic stress causing energy redirection to lower sprouts (Correct answer)

Correct answer: Decline or chronic stress causing energy redirection to lower sprouts

Upper crown dieback combined with lower epicormic sprouting is a classic sign of tree decline, where the tree redirects limited energy closer to the root system.

Question 98: A near-miss reporting program is valuable to a safety program primarily because it:

Provides legal protection against employee lawsuits
Reduces workers' compensation premium costs immediately
Reveals hazardous conditions before they cause injuries (Correct answer)
Fulfills OSHA mandatory reporting requirements

Correct answer: Reveals hazardous conditions before they cause injuries

Near-miss reports expose existing hazards and system failures, allowing corrective action before a serious injury occurs.

Question 99: A worker in an aerial lift bucket is struck by a falling branch and becomes unresponsive. The ground crew's first action should be:

Call 911 and wait for emergency services to arrive
Activate the ground controls to lower the bucket immediately (Correct answer)
Climb the tree to reach the injured worker
Attempt to swing the boom to a lower position manually

Correct answer: Activate the ground controls to lower the bucket immediately

The ground crew must use the emergency ground controls to lower the incapacitated worker to safety as quickly and carefully as possible.

Question 100: What is the MOST effective engineering control to prevent struck-by injuries from falling branches during aerial lift operations?

Requiring all ground crew to wear hard hats rated for falling objects
Limiting removal to branches smaller than 4 inches in diameter
Positioning the aerial lift so the basket is offset from the work area and using rigging to direct falling material away from personnel below (Correct answer)
Scheduling aerial lift work only during low-wind conditions

Correct answer: Positioning the aerial lift so the basket is offset from the work area and using rigging to direct falling material away from personnel below

Engineering controls that direct falling material away from personnel are more effective than PPE at preventing struck-by injuries.

Question 101: Following a near-miss where a climber's rope was nearly severed by a hand saw, a CTSP conducts a post-incident review with the entire crew. The MOST important outcome of this review is:

Determining if the brand of rope used was defective.
Disciplining the crew members involved for their unsafe actions.
Completing the necessary paperwork for the company's safety records.
Developing specific, actionable steps to prevent a similar event. (Correct answer)

Correct answer: Developing specific, actionable steps to prevent a similar event.

The ultimate purpose of a post-incident review, especially for a near-miss, is to learn from the event and implement changes to prevent a future, potentially more severe, incident. The most critical outcome is the development of concrete, actionable corrective actions that address the identified root causes.

Question 102: Which of the following is a 'leading indicator' of a successful safety culture in a tree care company?

The company's Total Recordable Incident Rate (TRIR) for the previous year.
The number of near-misses reported by crews in the last quarter. (Correct answer)
The number of fatalities in the past five years.
The amount of money paid for workers' compensation claims.

Correct answer: The number of near-misses reported by crews in the last quarter.

Leading indicators are proactive, preventive, and predictive measures that provide information about the performance of safety activities. An increase in near-miss reporting shows that employees are engaged, trust the reporting system without fear of retaliation, and are actively identifying hazards before they cause an actual incident. The other options are lagging indicators, which measure past incidents and failures.

Question 103: During a descent on a single rope, a climber notices the rope beginning to spin. The BEST immediate action is to:

Stop descent, allow the rope to detwist, then continue slowly (Correct answer)
Switch to a mechanical ascender immediately
Increase descent speed to outrun the twist accumulation
Release the descent device completely to let the rope unwind

Correct answer: Stop descent, allow the rope to detwist, then continue slowly

Stopping and allowing the rope to detwist prevents kinking and potential hitch failure; rushing or releasing the device creates additional hazard.

Question 104: A climber is injured and unresponsive in a tree that is in contact with a low-voltage power line. According to ANSI Z133 standards and best practices, what is the IMMEDIATE first step for the ground crew to take?

Immediately begin aerial rescue procedures to retrieve the victim.
Ascend an adjacent tree to assess the victim's condition.
Contact the utility company to de-energize the line. (Correct answer)
Use a non-conductive pole to attempt to move the branch off the line.

Correct answer: Contact the utility company to de-energize the line.

The absolute first priority in any incident involving electricity is to ensure the scene is safe for rescuers. Attempting a rescue before the power line is de-energized would expose the rescuer to the same electrical hazard, potentially creating a second victim. The correct and safest immediate action is to contact the utility company to have the power shut off and the line confirmed to be de-energized.

Question 105: During a pre-job briefing, the crew identifies overhead power lines within the work zone. The BEST immediate action is to:

Proceed cautiously and keep all equipment at least 3 feet away
Assign a spotter and continue operations
Contact the utility company to establish a safe approach distance before work begins (Correct answer)
Erect warning cones and proceed with hand tools only

Correct answer: Contact the utility company to establish a safe approach distance before work begins

Utility companies must be contacted to establish minimum approach distances and may need to de-energize or insulate lines.

Question 106: According to ANSI Z133, when must a tree climber wear a helmet during climbing operations?

Only when operating a chainsaw in the canopy
Only when working near aerial lift equipment
At all times while performing climbing operations (Correct answer)
Only during the descent from the tree

Correct answer: At all times while performing climbing operations

ANSI Z133 requires climbers to wear a helmet at all times throughout the entire climbing operation.

Question 107: What color is the universal standard for marking first-aid kits and emergency equipment on tree care job sites?

Yellow
Red (Correct answer)
Green
Orange

Correct answer: Red

Red is the universally recognized color for first-aid kits and emergency/fire-safety equipment, enabling quick identification during an emergency on a job site.

Question 108: A treecare company adds a safety incentive program that rewards crews for 'zero incidents.' What unintended consequence might this create?

Workers will become dependent on external motivation rather than skill
Workers may under-report injuries or near-misses to preserve their rewards (Correct answer)
Workers will become overconfident and take more risks
Production rates will decrease because workers slow down unnecessarily

Correct answer: Workers may under-report injuries or near-misses to preserve their rewards

Incentive programs tied to zero-incident metrics can suppress reporting of injuries and near-misses, masking true hazard exposure.

Question 109: Which type of aerial lift is specifically designed for tree care work and allows 360-degree continuous rotation?

Personnel hoist
Scissor lift
Articulating knuckle boom with continuous rotation (Correct answer)
Telescoping aerial device

Correct answer: Articulating knuckle boom with continuous rotation

Articulating knuckle booms with continuous rotation are preferred in tree care because they allow full access around a tree without repositioning the truck.

Question 110: What is the primary purpose of establishing a tree risk tolerance threshold for a site?

To determine the pruning cycle for the property
To calculate the appraised value of hazard trees
To define the highest risk level acceptable before mitigation is required (Correct answer)
To set a minimum height for tree removal

Correct answer: To define the highest risk level acceptable before mitigation is required

A risk tolerance threshold defines the maximum acceptable risk level, triggering mitigation actions when that level is exceeded.

CTSP Certified Treecare Safety Professional Exam

The CTSP (Certified Treecare Safety Professional) exam is administered by the Tree Care Industry Association (TCIA) and validates advanced knowledge of arboricultural safety management. The exam covers OSHA regulations, ANSI Z133 safety standards, hazard identification and control, incident investigation, aerial and climbing operations, chainsaw safety, ground operations, traffic control, and safety program development. Candidates must hold an ISA Arborist Certification and meet experience requirements.

100

Questions

120 min

Time Limit

70%

To Pass

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