Water Use Efficiency Practitioner Grade 2 Practice Test

Administered by California-Nevada American Water Works Association (CA-NV AWWA)

For the people who run water conservation programs — audits, leak and water loss accounting, landscape budgets, and rebate design.

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Grade 2 eligibility

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Grade 2 exam format

Grade 2 sample question

Landscape measures: water budget · an original practice item written only from publicly available sources, not a real exam question

Estimate the annual water need of a 2,000 ft² landscape where reference evapotranspiration (ETo) is 50 inches a year, the plant factor is 0.5 and irrigation efficiency is 0.75. (1 inch over 1 ft² = 0.62 gal.)

  1. 3,440 gal
  2. 23,300 gal
  3. 31,000 gal
  4. 41,300 gal
Answer and working

D. 41,300 gal

Water need = ETo × plant factor × area × 0.62 ÷ efficiency = 50 × 0.5 × 2,000 × 0.62 ÷ 0.75 = 41,300 gal. 31,000 leaves out the efficiency, 23,300 multiplies by the efficiency instead of dividing, and 3,440 divides the answer by 12 as if the inches still needed converting to feet, although the 0.62 factor already handles the units.

Grade 2 questions answered

What do I need to sit Water Use Efficiency Practitioner Grade 2?
High school or GED. 3 years in water use efficiency with a diploma, or 2 years with an associate degree, or 18 months with a bachelor's degree. 6 months currently holding Grade I.
Who can apply, and can education count as experience?
Able to write and comprehend English; over 18.
How many questions are on the Grade 2 exam, and what is the pass score?
The question count is not published, and the candidate handbook gives the cut score in two inconsistent ways, so this page prints neither. Check the current handbook before you sit.

What this exam covers

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Other grades in this track

Grade 1 · Grade 3 · All Water Use Efficiency Practitioner grades

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Sources

Topic coverage follows 2020 Certification Candidate Handbook - Water Use Efficiency Practitioner (California-Nevada American Water Works Association, issued 30 November 2020). Practice questions are written only from publicly available sources (that outline and the regulations and references it cites); they are not real exam questions, which are confidential. Check current application requirements, fees and exam dates on the certifying body's own page: official certification page.

Questions, flashcards, and explanations are AI-written from publicly available sources only: the exam content outlines and candidate materials each certifying body publishes without restriction, and the regulations and technical references they cite. No confidential material is used, including actual exam questions, recollections of any exam sat by the author, or any handbook or document released under a confidentiality agreement. Content is then put through repeated review — regulatory values checked against primary sources, every calculation recomputed, and errors corrected — plus spot checks by the author, who holds California water operator certifications and a California civil engineering licence. Those spot checks are sampling, not a professional review: nothing here is stamped, sealed, or offered as engineering advice, and not every item has been individually verified, so mistakes can still slip through.