CPST - Certified Child Passenger Safety Technician Booster Seat and Belt Positioning Questions and Answers

Question 1

A 7-year-old child weighs 55 lbs and is 48 inches tall. The caregiver wants to move them from a forward-facing harness to a booster seat. According to the 5-step test for proper seat belt fit, which of the following is NOT a requirement for a child to be ready for a seat belt alone, and thus still needs a booster?

Accepted Answer

The child's feet can comfortably reach the vehicle floor.

Answer

While having feet on the floor adds comfort and stability, it is not a primary requirement for the safety of the seat belt fit itself. The other three points are critical for ensuring the seat belt engages the strong bony parts of the child's body in a crash. The knees should bend comfortably at the edge of the seat when their back is against the seat back, but feet touching the floor is not a required step in the 5-step test.

Question 2

Which of the following is the MOST common misuse associated with belt-positioning booster seats?

Accepted Answer

Improper placement of the vehicle's shoulder and/or lap belt.

Answer

Studies and observational data consistently show that the most frequent errors with booster seats involve the incorrect routing of the vehicle seat belt. This includes placing the shoulder belt under the child's arm or behind their back, or having the lap belt positioned too high on the abdomen instead of low on the hips/upper thighs.

Question 3

A caregiver brings a 6-year-old to a checkup event. The child is using a high-back booster seat. The technician notices the vehicle's shoulder belt is positioned on the child's neck. What is the appropriate FIRST step for the technician to take?

Accepted Answer

Check if the booster's headrest and shoulder belt guide are adjusted correctly.

Answer

High-back boosters have adjustable headrests that contain a shoulder belt guide. This guide is designed to position the shoulder belt correctly across the child's chest and collarbone, away from the neck. The first step is to ensure this feature is used correctly and adjusted to the proper height for the child, which should be just above their shoulder.

Question 4

What is the primary reason a child who has outgrown their forward-facing harnessed seat is NOT ready for a vehicle seat belt alone and should use a belt-positioning booster?

Accepted Answer

To ensure the vehicle's lap and shoulder belts are positioned correctly on the strongest parts of the child's body.

Answer

The fundamental purpose of a booster seat is to elevate the child and guide the vehicle seat belt for a safe and effective fit. It ensures the lap belt lies low across the strong hip bones/upper thighs and the shoulder belt crosses the center of the chest and collarbone, away from the soft abdomen and neck.

Question 5

A parent states they just transitioned their 5-year-old, 42-pound child to a backless booster seat. The child often complains the shoulder belt bothers their neck and puts it behind their back during the ride. What should the CPST advise?

Accepted Answer

Use a shoulder belt adjuster clip that came with the booster to improve fit.

Answer

Placing the shoulder belt behind the back or under the arm is a dangerous misuse that eliminates all upper body protection. Many backless boosters come with a shoulder belt positioning clip or guide. This strap attaches to the lap belt portion of the seat belt and helps pull the shoulder belt down to the correct position on the child's shoulder and chest. This is the correct solution to the problem described.

CPST - Certified Child Passenger Safety Technician Practice Test

CPST - Certified Child Passenger Safety Technician Practice Test

CPST - Certified Child Passenger Safety Technician Booster Seat and Belt Positioning Questions and Answers