Water Operator Prep

Practice for water and wastewater operator certification with 3,576 questions, every single one carrying a written explanation of why the correct answer is correct and why the others are not. Ten banks, one subscription: - Operator Math - 296 calculations, worked step by step - Treatment Processes - 675 questions - Collection Systems - 554 questions - Collection Maintenance - 405 questions - Plant Operations - 388 questions - Backflow Prevention - 287 questions - Advanced Treatment - 253 questions - Distribution - 243 questions - Wastewater Treatment - 240 questions - Drinking Water Basics - 235 questions THE MATH IS WORKED OUT, NOT JUST ANSWERED Most operators lose marks on the calculations, and most practice apps skip them. This one has 296: chemical dosage and the pounds formula, hypochlorite strength, chlorine demand, detention time, surface and weir overflow rates, filtration and backwash rates, pipe velocity, per cent removal, water and brake horsepower, CT values, solids loading, specific capacity, flow conversions and tank volumes. Every calculation shows the formula, the numbers substituted in, and the arithmetic - then names the mistake that question is designed to catch. Forgetting the 8.34. Squaring the diameter instead of the radius. Leaving the pipe diameter in inches. Mixing up 7.48 gallons per cubic foot with 8.34 pounds per gallon. BUILT FOR WHERE YOU ACTUALLY STUDY Everything is in the app. No account, no sign-in, no server, and no signal required - it works in a plant basement, in a truck, or on a plane. Nothing you do is sent anywhere. HOW IT WORKS - Answer a question and the explanation opens straight away - Practise in order, draw at random, or redo only the ones you got wrong - Mock exams are timed and scored against a 70 per cent pass mark - Read-through lays out every question with its answer and explanation for revision - Progress, accuracy and streaks are tracked per bank - Search across a bank by keyword - Light and dark, three text sizes FREE AND PAID Your first day gives you 25 free questions, and after that it is ten a day. The allowance is shared across all ten banks, so it is ten questions in the app rather than ten in each. One subscription removes the daily limit and opens mock exams and read-through in every bank - there is no per-bank purchase. ABOUT THE QUESTIONS These are practice questions written for this app. They follow the topics that standardised water and wastewater operator examinations cover, but they are not actual exam questions and this app is not affiliated with, endorsed by or sponsored by any certifying body, state agency, testing organisation or training provider. SUBSCRIPTION TERMS Weekly - $5.99 for 1 week. Monthly - $11.99 for 1 month. Yearly - $69.99 for 1 year. All three unlock the same thing and renew automatically. Payment is charged to your Apple Account at confirmation. The subscription renews unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel any time in Settings - Apple Account - Subscriptions. Terms of Use (EULA): https://jdw159828-glitch.github.io/privacy-policy/terms.html Privacy Policy: https://jdw159828-glitch.github.io/privacy-policy/privacy.html