When placing an air bag on a box crib, the layer of cribbing in contact with the bag should be

When placing an air bag on a box crib, the layer of cribbing in contact with the bag should be

• A. a solid layer of cribbing.
• B. cribbing spaced at even distances apart.
• C. perpendicular to the bag.
• D. half the normal size of the box crib.

Answer: (A)

The surface that the air bag sits on must be a solid, continuous layer of cribbing. Air bags exert significant, concentrated pressure where they contact a surface, so any gaps or voids under the bag can cause it to deform, pinch the fabric, or dive into openings as it inflates. A solid layer distributes the load evenly across the bag’s footprint, reduces point loading, and keeps the bag stable during lifting, which helps prevent punctures or shifts that could compromise the rescue operation. Cribbing that is spaced apart or arranged with gaps would fail to provide the uniform support the bag needs, and making the top layer smaller or oriented in a particular way does not cure the fundamental requirement for continuous contact.

The surface that the air bag sits on must be a solid, continuous layer of cribbing. Air bags exert significant, concentrated pressure where they contact a surface, so any gaps or voids under the bag can cause it to deform, pinch the fabric, or dive into openings as it inflates. A solid layer distributes the load evenly across the bag’s footprint, reduces point loading, and keeps the bag stable during lifting, which helps prevent punctures or shifts that could compromise the rescue operation. Cribbing that is spaced apart or arranged with gaps would fail to provide the uniform support the bag needs, and making the top layer smaller or oriented in a particular way does not cure the fundamental requirement for continuous contact.