"Second-Class Electrician Written Exam Standard Answer Collection 2019 Edition" Ohmsha Price: ¥1200 #Ohmsha #Book #Electricity/Machinery/Electricity Written exam for Second-Class Electrician. Includes problems and answers from the past 10 years, from 2018 to 2009. I passed the exam last year by using this book for 5 years' worth of material. This is a used item, so please understand before purchasing. Instant purchase OK.