Certified Playground Safety Inspector (CPSI) Practice Exam

Barriers serve to prevent access or defense by dividing an area or by protecting it. The maximum gap allowed at the bottom of barriers is 3.5 inches. Option A is incorrect because it is too large and could allow for a child's head to become trapped. Option B is incorrect because it is too small and may not provide enough ventilation or visibility. Option D is incorrect because it is too large, which could allow for small children to slip underneath and possibly get injured.