NGWA Certified Well Driller (CWD) — Practice Test 2
The NGWA Certified Well Driller (CWD) certification validates professional competency in water well drilling, covering well construction, geology, groundwater hydrology, well maintenance, business operations, and professional standards. Candidates must pass the general drilling exam plus at least one specialized drilling exam with a score of 70% or better.
100
Questions
120 min
Time Limit
70%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds