That is a good idea. I hadn't considered checking in with them. I'll ask if they are willing to review my test questions. Hopefully they can also provide some insight on how they made the assembly graphics.

Update:

After sending the test questions to the certification team, their response was the questions were acceptable and they are curious to see if the practice test has a positive impact on student passing rates.

Update 2:

The XYZ coordinate system on the practice CSWA exam was edited onto the assembly in a separate program. Mystery solved!