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Entrapment and Protrusion Hazard Testing Flashcards

7 cards from real CPSI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. According to CPSC guidelines, how far may a bolt protrude beyond the face of the nut before it is considered a protrusion hazard?

    Answer: No more than 2 thread lengths beyond the nut

    Bolts should not extend more than 2 thread lengths beyond the nut face, as excess thread can snag clothing or puncture skin.

  2. S-hooks on playground equipment are flagged as a hazard when the opening gap is greater than:

    Answer: 0.04 inches (1.0 mm)

    S-hook openings greater than 0.04 inches (1.0 mm) can snag strings, cords, or clothing and create strangulation hazards.

  3. A CPSI inspector finds a capped pipe end on a climbing structure where the cap has been removed. This is primarily classified as which hazard?

    Answer: Protrusion hazard

    An open pipe end creates a protrusion hazard where a child can impale on the pipe or become entrapped in the hollow opening.

  4. Which fastener condition would a CPSI inspector mark as an immediate protrusion hazard?

    Answer: An exposed bolt head with 3 thread lengths visible beyond the nut

    Three thread lengths beyond the nut exceeds the 2-thread-length maximum, making it a protrusion hazard that should be cut back or capped.

  5. What test method is used to evaluate whether a hardware protrusion (hook, bolt head, bracket) poses a hazard under CPSC guidelines?

    Answer: A protrusion gauge or template confirming the projection is within tolerance

    Inspectors use a protrusion gauge or defined template to physically measure whether any hardware projects beyond the allowable limit.

  6. Rings on playground equipment are considered entrapment hazards when their inside diameter falls between which two measurements?

    Answer: 3.5 inches (88.9 mm) and 9.0 inches (228.6 mm)

    Like other openings, rings with inside diameters between 3.5 and 9 inches fall in the head entrapment hazard zone and must be avoided or redesigned.

  7. A CPSI inspector discovers a broken cable on a suspension bridge that now has a frayed end protruding outward. This is BEST classified as which type of hazard?

    Answer: Entrapment and protrusion hazard

    A frayed, protruding cable end creates both a protrusion hazard (puncture/laceration) and a potential entrapment hazard if strands can snag clothing or body parts.