【Pass Even with Zero Field Knowledge】 A set of textbooks and problem collections known for their effectiveness in preparing for the Water Supply Equipment Technician exam. ① Title: Water Supply Equipment Technician Exam - Publisher: Ohmsha - Revised Edition: 4th Revised Edition ② Title: Complete Answers to the Water Supply Equipment Exam - Problems Included: All problems from 8 years (from 2015 to 2022) Thank you for viewing. I used these for the October 2024 exam preparation. I believe anyone can pass if they can solve all the problems in these two books. ※ The seller is someone who makes a living in sales and has no field experience, but passed with a correct answer rate of about 90%.