CPSI Entrapment and Protrusion Hazard Testing 4

Question 1

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

Accepted Answer

No more than 2 thread lengths beyond the nut

Answer

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

Question 2

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

Accepted Answer

0.04 inches (1.0 mm)

Answer

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

Question 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?

Accepted Answer

Protrusion hazard

Answer

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

Question 4

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

Accepted Answer

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

Answer

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

Question 5

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

Accepted Answer

A protrusion gauge or template confirming the projection is within tolerance

Answer

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

CPSI - Certified Playground Safety Inspector Practice Test