CPST Harness Systems and Harness Fit 2

Question 1

The crotch buckle strap on a car seat should be adjusted to the slot closest to the child primarily to:

Accepted Answer

Prevent the child from submarining under the harness in a crash

Answer

Make buckling easier for the caregiver

Answer

Allow the child to sit more comfortably

Answer

Accommodate the child's leg length

Question 2

Twisted harness webbing is a safety concern because it:

Accepted Answer

Reduces webbing strength and can concentrate crash forces on a narrow band

Answer

Makes the harness more difficult to tighten quickly

Answer

Causes premature wear on the seat shell

Answer

Prevents the chest clip from staying in position

Question 3

What clothing is most appropriate for a child to wear in a car seat in cold weather?

Accepted Answer

Thin layers with a blanket placed over the buckled harness

Answer

A thick down snowsuit for maximum warmth

Answer

A heavy fleece jacket for insulation

Answer

A bulky sweater to provide padding in a crash

Question 4

When a harness shoulder strap repeatedly slides off a child's shoulder, the most likely cause is:

Accepted Answer

The harness slots are at the wrong height for the child

Answer

The harness is tightened too much

Answer

The chest clip is positioned too low

Answer

The crotch buckle slot is incorrect

Question 5

Why are aftermarket harness accessories (such as strap covers or added padding) generally not recommended by CPSTs?

Accepted Answer

They have not been crash-tested with the specific seat and may alter harness performance

Answer

They are too expensive for most families

Answer

They are only approved for seats manufactured after 2015

Answer

They are permitted only for forward-facing seats

Question 6

During a harness check, a technician is unable to tighten the harness because the adjuster strap is frayed. What is the appropriate recommendation?

Accepted Answer

Contact the manufacturer and potentially replace the seat

Answer

Reinforce the adjuster with duct tape until a replacement is available

Answer

Use the LATCH strap as an additional tightening point

Answer

Tie a knot in the adjuster webbing to shorten it

Question 7

What is the practical difference between a front-pull (no-rethread) harness adjuster and a rear-pull harness adjuster?

Accepted Answer

Rear-pull adjusters require the child to be removed from the seat to retighten

Answer

Front-pull adjusters are only found on infant seats

Answer

Front-pull adjusters cannot be used with the LATCH system

Answer

Rear-pull adjusters provide a tighter harness in a crash