Denken 電験三種 Exam Prep

Prepare for Japan's Third-Class Chief Electrical Engineer examination (第三種電気主任技術者試験, "Denken 3"). The app is in Japanese. - 16 sittings from 2015 to the first half of 2026: 1,280 published exam questions in Theory, Power, Machines and Regulations. Questions and figures are shown exactly as in the official booklets (circuit diagrams and formulas included), with pinch-to-zoom. Source: Electrical Technician Examination Center (電気技術者試験センター), https://www.shiken.or.jp/chief/third/qa/ - Every question has the key point, a detailed explanation and a reason for each wrong option; regulation questions are checked against current law and note later amendments - Timed mock exams per subject (90 or 65 minutes) scored with the official points and each sitting's pass mark, including the choose-one questions 17/18 - A calculator with the functions allowed in the exam and a handwritten scratch pad - Subject credit tracking: register passed subjects and see the remaining exemptions - Practice by sitting, topic or question number; calculation-only or knowledge-only sets; review by mistake reason - 239 formula and value flashcards with spaced repetition, and widgets for days left and a true-or-false question of the day No account, no ads. Your study history stays on this device. Explanations are our own. The app does not represent any government body or the examining organization and is not affiliated with the Electrical Technician Examination Center. Terms of Use: https://stackworksdev.github.io/denken-exam/terms.html Privacy Policy: https://stackworksdev.github.io/denken-exam/privacy.html