Which form is used to show the general contents and a diagram of a shipping container?

The form used to show the general contents and provide a diagram of a shipping container is the DD Form 1750. This form is specifically designed for the identification of equipment and supplies when shipping, including the layout and contents of containers. It serves as a packing list that provides essential information, ensuring that all items are accounted for. This helps in the effective management of logistics and inventory control during transportation.

The other options mentioned—like the DD Form 5748, DD Form 5988, and DD Form 2977—serve different purposes. For instance, DD Form 5748 is related to the Army's Movement Control and is not specifically about shipping containers. DD Form 5988 is used for reporting equipment failure and status, while DD Form 2977 is associated with risk assessment in mission planning. Each has its own specific context and uses that do not pertain to the representation of shipping container contents.