Which piece of equipment should be used against the face of an embankment or bluff while moving forward?

Using a shovel against the face of an embankment or bluff while moving forward is appropriate due to its design and functionality. A shovel, particularly in the context of manual or machine-operated loading, allows for precise digging and handling of material close to vertical surfaces. This capability is essential when working on embankments or bluffs where maintaining control and accuracy is crucial to avoid destabilizing the slope.

The shovel's maneuverability enables the operator to efficiently collect and move loose material directly from the face of the embankment. This minimizes the risk of causing shifts in the material that could lead to landslides or other safety hazards. Additionally, the ability to work in confined or sloped spaces makes the shovel a preferred tool for this type of task.

In contrast, other equipment like an excavator, while capable of working on embankments, may not provide the same level of accuracy or control in tight situations unless it has specific attachments. A dump truck is primarily used for transporting material rather than for direct manipulation against a vertical face. A compactor, meanwhile, is designed for compressing and leveling material, which is not suitable for the initial excavation or material handling against an embankment's face.