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How many questions are on the Texas Class D water exam?
The TCEQ does not publish the exact number of questions on the Class D water exam, so any specific count you see online is unofficial. What is official: you get 3 hours, need 70 percent to pass, and every question comes from the eight TCEQ Need-to-Know subjects. Prepare to the scope, not a rumored count.
Last reviewed 2026-08-03
Why you see different numbers
Question dumps and forums throw out counts like 50, 90, or 100, but the TCEQ does not publish an official number, and figures copied from other states or higher grades do not apply to the Texas Class D exam. Treat any exact count as unverified.
What actually matters
The official, sourced facts are what to plan around: a 3-hour time limit, a 70 percent passing score, and a fixed scope drawn from the eight TCEQ Need-to-Know subjects. Cover that scope and the exact question count stops mattering.
Common questions
- How many questions are on the exam?
- The TCEQ does not publish an official count, so treat any specific number as unofficial.
- How long is the exam?
- 3 hours.
- What score do I need?
- A minimum of 70 percent.