CTSP Struck-By and Falling Object Hazards Flashcards
6 cards from real CTSP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CTSP Struck-By and Falling Object Hazards flashcards as text
What does 'brushing out' a tree work area mean and why is it required?
Answer: Clearing undergrowth and debris to create safe footing and unobstructed escape routes
Brushing out means removing undergrowth, debris, and obstacles from the work area to ensure safe footing and clear escape routes before work begins.
Which of the following best defines a 'widow maker' as used in tree care safety?
Answer: A dead, broken, or loosely attached overhead branch that can fall without warning
A widow maker is a dead, broken, or loosely attached overhead limb that can fall without warning, posing a serious struck-by hazard to workers below.
At what point during a tree felling operation should the feller call out 'timber'?
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.
What is the function of the face cut (notch) in directional tree felling?
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.
Which regulatory framework most directly governs arboricultural operations and tree care safety in the US when no specific OSHA standard exists?
Answer: ANSI Z133 Safety Requirements for Arboricultural Operations
ANSI Z133 is the recognized industry consensus standard for arboricultural operations; OSHA applies its General Duty Clause in the absence of a specific tree care standard.
What is the significance of the 'hinge' in tree felling, and what is the generally recommended hinge thickness?
Answer: The uncut wood between the face and back cuts controls the direction and speed of fall and should be approximately 10% of the tree's diameter
The hinge is the uncut wood that controls direction and rate of fall; a properly sized hinge of approximately 10% of the tree's diameter provides the necessary control.