CTSP CTSP Tree Climbing and Rigging Safety 1 — Questions and Answers
Question 1: What is the minimum breaking strength (MBS) required for a primary climbing line used in tree care operations per ANSI Z133?
- 3,000 lbs
- 5,000 lbs (Correct answer)
- 2,500 lbs
- 4,000 lbs
Correct answer: 5,000 lbs
ANSI Z133 requires a climbing line to have a minimum breaking strength of 5,000 lbs to ensure climber safety.
Question 2: What is the primary purpose of a work positioning lanyard in tree climbing?
- To ascend the tree trunk
- To secure the climber so both hands are free for work (Correct answer)
- To lower cut wood pieces to the ground
- To anchor the rigging line to the tree
Correct answer: To secure the climber so both hands are free for work
A work positioning lanyard secures the climber in place so both hands are free to perform work tasks.
Question 3: When using a friction hitch as a secondary attachment during climbing, where must it be positioned relative to the primary climbing hitch?
- Above the primary climbing hitch
- Below the primary climbing hitch (Correct answer)
- At the same level as the primary hitch
- On the opposite side of the saddle
Correct answer: Below the primary climbing hitch
ANSI Z133 requires the friction hitch (secondary attachment) to be positioned below the primary climbing hitch for proper redundancy.
Question 4: 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 5: What does 'safe working load' (SWL) refer to in the context of tree care rigging?
- The maximum weight a rope can hold before breaking
- The load a rigging component can safely handle during normal operations (Correct answer)
- The total weight of all workers and equipment in the tree
- The minimum test load required to certify rigging equipment
Correct answer: The load a rigging component can safely handle during normal operations
Safe working load (SWL) is the maximum load a rigging component should carry under normal working conditions, incorporating a safety factor.
Question 6: Which type of knot is most commonly used to attach a climbing line to a saddle's D-ring because of its security and ease of untying?
- Bowline (Correct answer)
- Clove hitch
- Prusik
- Figure-eight on a bight
Correct answer: Bowline
A bowline knot is commonly used to attach the climbing line to the saddle's D-ring due to its secure fixed loop and ease of untying under load.
CTSP CTSP Tree Climbing and Rigging Safety 1
What is the minimum breaking strength (MBS) required for a primary climbing line used in tree care operations per ANSI Z133?