CDL General Knowledge TestTransporting Cargo SafelyMedium
A driver is transporting a load of logs that are contained within a bunk or cradle. What is the primary role of the bunks or cradles in this securement system?
- ATo absorb vertical shocks and prevent damage to the logs during transit.
- BTo allow for easier loading and unloading of the logs at the destination.
- CTo distribute the weight of the logs more evenly across the trailer frame.
- DTo provide lateral stability and prevent logs from rolling off the sides.
Show answer & explanationAnswer & explanation
Correct answer: D. To provide lateral stability and prevent logs from rolling off the sides.
Bunks or cradles are specialized structures designed to contain logs. Their primary function is to provide lateral stability, preventing the logs from rolling off the sides of the trailer. They act as a physical barrier to keep the logs in place horizontally.
Why the other options are wrong
- A. While they might offer some minimal shock absorption, their primary role is not to prevent damage from vertical shocks.
- B. Easier loading/unloading is a secondary benefit, not the primary securement function.
- C. Weight distribution is a function of how the load is placed within the bunks, not the primary role of the bunks themselves.
Log Bunks/Cradles Function
Bunks or cradles are structural components used in log transport to physically contain logs and provide lateral stability.
- Prevent logs from rolling or shifting sideways.
- Reduce the number of tiedowns required compared to unbunked logs.
- Must be strong enough to withstand forces.
- Are a form of 'blocking' for cylindrical cargo.
Memory trick: Bunks cradle the logs, stops them from rolling like dogs!