Entrapment and Protrusion Hazard Testing Questions and Answers Flashcards
6 cards from real CPSI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Entrapment and Protrusion Hazard Testing Questions and Answers flashcards as text
Which ASTM F1487 dimension defines the lower boundary of the head entrapment zone?
Answer: 3.5 inches
The head entrapment zone begins at 3.5 inches — openings larger than 3.5 inches can admit a child's head.
How many thread pitches beyond the nut is the maximum allowable protrusion for fasteners on playground equipment?
Answer: 2 thread pitches
ASTM F1487 limits fastener protrusion to a maximum of 2 thread pitches beyond the nut.
What testing device is used to check for head entrapment openings on playground equipment?
Answer: A 3.5-inch and 9-inch probe or go/no-go gauge
CPSIs use go/no-go probes or gauges with critical dimensions of 3.5 inches and 9 inches to test for head entrapment openings on playground equipment.
What is the finger entrapment zone for playground equipment openings?
Answer: Between 3/8 inch and 1 inch
The finger entrapment zone is openings between 3/8 inch (0.375 inches) and 1 inch in diameter — fingers can enter but cannot be withdrawn.
What is the torso entrapment zone as defined in ASTM F1487?
Answer: 9 to 18 inches
The torso entrapment zone is openings between 9 and 18 inches — these can admit a child's torso but not allow it to exit.
In playground entrapment hazard testing, what does it mean if a 3.5-inch probe passes through an opening but a 9-inch probe does not?
Answer: The opening is in the prohibited head entrapment zone and is a hazardous condition
An opening that admits the 3.5-inch probe but not the 9-inch probe is in the prohibited head entrapment zone — a child's head can enter but cannot exit.