Which of the following names is commonly used interchangeably with stacker?

The term "stacker" is commonly used interchangeably with "forklift" because both refer to equipment designed to lift and move materials, typically palletized goods, in warehouses and industrial environments. Stackers and forklifts both utilize forks, which are used to lift loads off the ground and stack them at various heights.

While other equipment, such as loaders and cranes, serve distinct functions and have unique designs not primarily focused on stacking pallets, a forklift is particularly known for its versatility in both lifting and stacking tasks. Forklifts can handle a variety of loads and are essential in material handling, making them synonymous with the term stacker in many contexts.

Platform trucks, on the other hand, are primarily designed for transporting goods rather than lifting or stacking them. This further emphasizes why "forklift" is the correct choice when discussing equipment that performs stacking functions.