CTSP CTSP Ground Operations and Traffic Control 2 — Questions and Answers
Question 1: OSHA 1910.266 requires that a minimum of how many trained employees be present when chainsaw work is performed in a hazardous location?
- Two — a worker and a trained observer/partner (Correct answer)
- One is sufficient if experienced
- Three, including a first-aid provider
- Four, one per chainsaw
Correct answer: Two — a worker and a trained observer/partner
OSHA requires at least two trained employees on site so one can assist or summon help if the other is injured during chainsaw operations.
Question 2: What is the recommended minimum exclusion zone radius around a tree being felled to protect ground workers?
- Two tree-lengths in every direction (Correct answer)
- 10 feet
- The height of the tree plus 5 feet
- 50 feet in the fall direction only
Correct answer: Two tree-lengths in every direction
ANSI Z133 recommends an exclusion zone of at least two tree-lengths in all directions to account for unexpected roll, bounce, and limb scatter.
Question 3: When using a wood chipper, what must be done before any operator reaches into the feed chute to clear a jam?
- Shut down the chipper, engage the brake/lock, and wait for all rotating parts to stop completely (Correct answer)
- Switch to reverse feed and stand to the side
- Reduce engine speed to idle
- Wear thick leather gloves and reach in carefully
Correct answer: Shut down the chipper, engage the brake/lock, and wait for all rotating parts to stop completely
The chipper must be completely shut down and all rotating components must come to a full stop before any hands-on clearing of jams to prevent amputations.
Question 4: Which signal should a ground crew member give to immediately stop all work when an unsafe condition is spotted?
- A clear verbal shout of 'STOP' accompanied by a raised fist or closed hand signal (Correct answer)
- A thumbs-down gesture
- Two short whistle blasts
- Waving both arms overhead
Correct answer: A clear verbal shout of 'STOP' accompanied by a raised fist or closed hand signal
A loud verbal 'STOP' combined with a raised fist is the universally recognized emergency stop signal in arborist ground operations.
Question 5: What does the term 'drop zone' mean in tree care ground operations?
- The designated area where cut material will land, cleared of personnel before cutting begins (Correct answer)
- The zone where the chipper discharges wood chips
- The area where tools are stored during the job
- The region below the climber's position
Correct answer: The designated area where cut material will land, cleared of personnel before cutting begins
The drop zone is the pre-identified, personnel-cleared area where cut wood pieces are expected to fall or be lowered during tree work.
Question 6: A CTSP conducting a job site safety briefing should verify that all crew members understand what at minimum before work begins?
- The job hazards, individual roles, emergency procedures, and the location of first aid equipment (Correct answer)
- Only the work schedule and pay rate
- The property owner's wishes and tree species present
- Weather forecast and estimated job duration
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.
CTSP CTSP Ground Operations and Traffic Control 2
OSHA 1910.266 requires that a minimum of how many trained employees be present when chainsaw work is performed in a hazardous location?