Why ensure Q <= 1?

• A. To maximize the amount shipped per outer packaging.
• B. To expedite loading.
• C. To reduce weight.
• D. To ensure the combined quantity of dangerous goods per shipment does not exceed regulatory limits.

Answer: (D)

The important idea here is controlling how much dangerous goods can be placed in a single outer packaging by using a Q value of 1. In dangerous goods regulations, the total quantity that can be shipped in one outer packaging is limited to protect people, property, and the environment during handling, transport, and in emergencies. The Q value acts as a cap on how much can be included per package; setting it to 1 (or less) ensures the amount inside a container cannot push the shipment beyond the permitted per-package quantity for that material and packing configuration. This, in turn, keeps the overall quantity per shipment within regulatory limits and maintains safe, compliant handling and stowage.

If the Q value were allowed to exceed 1, you could unintentionally exceed the approved per-shipment quantity, triggering the need for different packaging or splitting the load into multiple shipments. The other options miss the regulatory quantity control focus—A talks about maximizing amount, B about loading speed, and C about weight reduction—none of which address why limiting the per-shipment quantity is essential.