From the FAA

FAA Sample Questions

All 46 of the FAA's published sample questions for the Unmanned Aircraft General (UAG) test, plus one more from the FAA's official PSI practice test. They are worded exactly as the FAA wrote them, with the chart figures they refer to. Answer them all, then submit to see the correct answers and why.

The FAA's PDF has no answer key. Every answer here matches the key from the FAA's official practice test on PSI. The explanations are ours, written from 14 CFR and the FAA-CT-8080-2H supplement. Source: FAA UAG sample questions (PDF).