Mixed Deck — All CPSI Topics Flashcards

How is the use zone for a slide measured when the slide has a curve or turn?

Answer: The use zone must encompass the entire slide footprint plus 6 feet from all edges of the slide structure and exit

For curved or unusual slides, the use zone must encompass the entire slide structure footprint plus 6 feet beyond all edges, not just the exit.

What is the primary maintenance action required to keep loose-fill surfacing performing adequately over time?

Answer: Regular raking to redistribute displaced material and periodic replenishment to maintain depth

Regular raking redistributes material displaced by heavy use back under equipment, and periodic replenishment restores depth lost to displacement and decomposition, maintaining the required impact attenuation depth.

What is the maximum allowable opening size in a guardrail or platform barrier to prevent head entrapment according to CPSC and ASTM F1487?

Answer: Less than 3.5 inches or greater than 9 inches

Openings must be either smaller than 3.5 inches (too small for a child's head to enter) or larger than 9 inches (too large to trap a head) to avoid the entrapment zone.

A CPSI measures a space between two vertical posts on a playground structure. The 3.5-inch probe does NOT pass through but the 9-inch probe also does NOT pass through. What is the finding?

Answer: Safe — openings smaller than 3.5 inches are acceptable

An opening that does not admit the 3.5-inch probe is smaller than 3.5 inches and is safe — too small for a child's head to enter.

Which scenario correctly identifies a 'trip hazard' on a playground?

Answer: Exposed concrete footing rising 2 inches above grade within the use zone

Exposed footings, edging, or anchoring hardware that protrude above the ground surface within the use zone are recognized trip hazards.

Which design element helps toddlers (ages 2-5) safely access elevated platforms on age-appropriate equipment?

Answer: Steps with riser heights under 9 inches and closed risers

Steps with riser heights under 9 inches and closed risers help toddlers access platforms safely while preventing foot entrapment.

What is the primary reason playground equipment footings must extend below the local frost line?

Answer: To prevent frost heave from destabilizing equipment and creating tripping or structural hazards

Frost heave occurs when water in the soil freezes and expands, pushing footings upward. If footings do not extend below the frost line, equipment can shift, tilt, or create ground-level trip hazards and structural instability — all of which are safety-critical findings for a CPSI inspector.

Under CPSC guidelines, what is the maximum acceptable height for a protective surfacing material to extend beyond the fall zone boundary?

Answer: It must be contained within the fall zone boundary

Protective surfacing must be contained within the fall zone and should not extend beyond its boundary in a way that creates trip hazards.

A CPSI is evaluating an embankment slide where the slide chute follows the natural contour of a hill. Per ASTM F1487, what is a key requirement for the use zone at the exit of this type of slide?

Answer: The use zone must have protective surfacing and be clear of obstacles for a distance of at least 72 inches from the end of the slide.

Even though an embankment slide is supported by the ground, the exit region presents a fall hazard. ASTM F1487 requires that the use zone at the exit of an embankment slide must contain appropriate protective surfacing and be free of obstacles for a minimum distance of 72 inches (6 feet).

What is the recommended approach when playground equipment reaches the end of its useful service life?

Answer: Replace or remove it, as aging equipment may no longer meet current standards

Equipment at the end of its service life should be replaced or removed, as it may no longer meet current safety standards and may have compromised structural integrity.

What is the maximum slope allowed for an accessible route to playground equipment according to ADA guidelines?

Answer: 1:12 (8.33%)

ADA guidelines, specifically the Americans with Disabilities Act Accessibility Guidelines (ADAAG), mandate that accessible routes, including ramps leading to playground equipment, must not exceed a slope of 1:12 (8.33%). This slope ensures that individuals using wheelchairs or other mobility aids can safely and independently access the play area. A steeper slope would make the route difficult or impossible for many users, thus failing to meet accessibility requirements.

Which design approach best reduces the risk of 'pushed-in' entrapment at an opening between two structural members?

Answer: Ensuring the opening is either smaller than 3.5 inches or larger than 9 inches

Openings must be either less than 3.5 inches (too small for a head to enter) or greater than 9 inches (large enough for the body to pass through) to eliminate entrapment zones.

What is the required minimum overhead clearance for a slide exit?

Answer: 16 inches (400 mm)

ASTM F1487 requires a minimum of 16 inches (400 mm) of clearance between the bottom of the slide exit and the protective surfacing to allow for adequate landing space.

What is the maximum permitted protrusion (bolt extension) beyond a nut on playground equipment per ASTM F1487?

Answer: 1/8 inch

Bolt ends must not protrude more than 1/8 inch beyond the nut to minimize clothing snag and laceration hazards.

According to ASTM F1951, which test evaluates whether playground surfacing is accessible for children using mobility aids?

Answer: Work of Propulsion test

ASTM F1951 measures the Work of Propulsion required to traverse surfacing in a wheelchair, determining if it meets accessibility standards.

According to ASTM F1487, what is the minimum width required for a stairway on playground equipment intended for children ages 5–12?

Answer: 22 inches

ASTM F1487 requires stairways on equipment for ages 5–12 to have a minimum width of 22 inches.

What is the primary purpose of a 'use zone' on a playground?

Answer: To define the area where a child may land during normal and reasonable use

The use zone is the area around equipment where a child might land from normal or reasonably foreseeable use and must be covered with impact-attenuating surfacing.

A playground agency's risk management plan specifies different types of inspections. Which of the following tasks would MOST likely be performed during a "low frequency" inspection?

Answer: Measuring for excessive wear on swing chain links and hangers.

Low-frequency (e.g., monthly or quarterly) inspections are more in-depth than high-frequency checks. They focus on assessing the structural integrity of the equipment, including looking for wear on moving parts like swing hangers and chains, checking for footing stability, and identifying gradual deterioration that would not be noticed during a quick visual check.

What is the minimum required length of the use zone at the exit of a slide?

Answer: 6 feet from the end of the slide chute.

The use zone must extend a minimum of 6 feet (72 inches) from the end of the slide's exit chute. This provides adequate space for a child to exit the slide and move away before the next user comes down, preventing collisions and injuries.

What should a CPSI do when they observe a hazard that they believe requires engineering analysis to properly evaluate?

Answer: Document the observation, note that engineering analysis is recommended, and advise closure if the structural risk appears imminent

The CPSI should document the concern, recommend engineering analysis, and advise closure if the risk appears imminent — acknowledging the scope of CPSI expertise versus engineering licensure.