1. **Does the object resemble a shovel excavator?**
   - **Answer:** No
   - **Reasoning:** The object does not have the typical components of a shovel excavator such as a bucket, boom, or cab. It appears to be a geometric sculpture or abstract model rather than a functional excavator.

2. **Is the base of the object shaped like an irregular rhombus?**
   - **Answer:** Yes
   - **Reasoning:** The base of the object, which is a separate geometric form connected to the main body, does appear to have four sides with unequal lengths, resembling an irregular rhombus.

3. **Is there a rectangular prism attached to the rhombus?**
   - **Answer:** Yes
   - **Reasoning:** The images show a three-dimensional rectangular form (prism) attached to the base, which is shaped like an irregular rhombus.

4. **Is the rectangular prism attached to the center of one of the extruded edges on the rhombus?**
   - **Answer:** Yes
   - **Reasoning:** From the images, it is observable that the rectangular prism is connected centrally along one of the extruded edges of the rhombus-shaped base.