Free practice set
No account required for the first unlocked questions.
A–E answer instantly · ← → navigate
Your full study pack
Build your skills and take the next step in your career. From ￥214 a day with 365-day access.
Denken Exam · 2,800+ exam-style practice questions with clear explanations
Digital booklet + toolkit
Included with every plan
The Success Guarantee
Success Guarantee — if you don’t pass, we’ll grant one additional matching access period for the same exam free, no questions asked.
Exam Syllabus
Three-phase AC power, apparent/active/reactive power, and power factor relationships | Voltage drop and line current calculations for feeders and balanced loads | Delta and star connection conversions and transformer basics
Motor and transformer losses, efficiency, and high-efficiency replacement economics | Variable-speed drives and affinity-law energy savings on pumps and fans | Lighting system upgrades and annual consumption reduction estimates
Instrument transformers (CT/PT) ratios, secondary ratings, and safe operation | Demand measurement, integrating meters, and load-factor monitoring | Meter selection for distorted waveforms and three-phase power measurement
Energy management obligations for designated factories under Japan's energy-saving framework | Unit energy consumption (energy consumption per unit) and benchmark concepts | Applied calculations: load factor, demand charges, and heat-pump conversion efficiency
Mobile-responsive study
Open practice questions, flashcards, study notes, mind maps, and your progress dashboard from any phone, tablet, or laptop. There is no app to install and no menu hunting—continue where you left off in one click.
Every answer updates your topic mastery, timing, score trend, and missed-question review for Energy Manager Exam エネルギー管理士 (電気分野), so you can spend less time guessing and more time fixing what could cost you points.
Your exam readiness
SECUREEnergy Manager Exam エネルギー管理士 (電気分野)
Are your mock scores improving?
Video course preview
Denken Exam brings guided video study, worked examples, and exam-style practice into one study flow.
Work through the syllabus in a clear sequence.
See how the method applies before you practise.
Review reasoning, choices, and common traps.
A buyer bonus for what comes next
Every paid module unlocks your Electrical Engineering Career Launch Kit for life — practical tools for stronger applications, interviews, and career evidence.
Included free with any paid module. Lifetime access.
The full study dashboard works just as well on a phone. On the commute, in a queue, on a lunch break, waiting at the school gate — five or ten minutes is enough to finish a question set, run a few flashcards, or clear some wrong answers. You never have to wait for a free evening to make progress.
Learner reviews
Feedback from learners using Denken Exam to make Energy Manager Exam エネルギー管理士 (電気分野) preparation more focused and manageable.
4.9/5
from 400+ reviews
Rosa M.
Denken Exam learner
“While preparing for EM, I keep a small list of mistakes from Electrical Energy Fundamentals. Reviewing why each answer went wrong keeps my study sessions more focused than simply rereading notes.”
Jamal W.
Denken Exam learner
“Great EM prep. Denken Exam was clear and easy to use!”
Yuki S.
Denken Exam learner
“For EM, Equipment Systems and Efficiency was the area I kept postponing. Breaking it into a few practice questions at a time makes the material much easier to revisit after work.”
Trevor B.
Denken Exam learner
“My EM routine is simple: one timed set, a short break, then a careful review of Measurement Management and Optimization. The explanations show whether I understood the idea or just guessed well.”
Hannah T.
Denken Exam learner
“The EM practice questions kept my review focused.”
Elena G.
Denken Exam learner
“I use lunch breaks to review Energy Law and Applied Calculations for EM. Short sessions work better for me because I can focus on one weak area without trying to cover the whole syllabus at once.”
Aisha M.
Denken Exam learner
“The hardest part of EM prep for me is keeping similar ideas in Electrical Energy Fundamentals separate. I now write one-line comparisons after each practice set, which makes the next review much clearer.”
Maya R.
Denken Exam learner
“Denken Exam made EM prep simple and easy to follow.”
Priya R.
Denken Exam learner
“I am still working through EM, especially Equipment Systems and Efficiency. Going back through missed questions slowly has shown me which details I rush past when I practice under time pressure.”
Tom H.
Denken Exam learner
“EM review felt much more manageable with these tools.”
“Thanks to the well-organized practice questions, I was able to tackle my exam preparations with ease. The questions are thoughtfully designed to closely resemble those in the actual exam.”
“The practice questions mirrored real exams with comprehensive explanations.”
“the practice questions are helpful similar to the topics covered in the real exams i love the detailed explanation provided right after each question”
“The practice questions, key study notes, and supportive staff all help me to pass the exam. And the best thing is, is that the questions are well-structured and similar to the ones on the actual exam.”
“The practice questions are superbly crafted, making exam preparation a breeze. The explanations provided after this question are like gold dust.”
“The practice questions are incredibly helpful. They're closely resembling the real exam scenarios, which is perfect. With detailed explanations provided, studying has never been this efficient.”
Of course you can. Any exam can be prepared for independently. But you’ll spend weeks extracting key concepts from dense manuals, guessing which topics are actually tested, and hoping you covered enough.
Or you can let our full-time exam team do that heavy work for you — so you can focus on practice, pass on your first attempt, and spend your evenings with friends and family instead of buried in textbooks.
FAQ
No. It verifies the 2026 test date, application window, internet application, and 46th examination listing. It does not provide weightings, pass mark, fee, question count, or full syllabus details. Treat those as subject to current official verification.
No. They are original knowledge and application checks covering supporting concepts. The source does not establish the current item format, and no audio, image, or workbook is claimed.
S = √3 V I; P = S cosφ; Q = S sinφ; input = output/η; 30-minute demand = 2 × interval kWh; load factor = average/maximum; unit consumption = energy/production; fan or pump power ∝ speed³.
Use the outline to identify topics, but verify current duties, thresholds, and reporting rules against current official sources. The supplied guide page does not state those details, so they are outside what this package can confirm.
Unit consumption divides by production. If production rises proportionally more than energy use, energy per unit can fall even though total energy rises. Check both total and normalized metrics.
Calculate each requested quantity separately, label units, then apply the rubric. If one number is implausible, trace the formula and conversion before changing assumptions.
When you’re preparing for an exam, the cost goes beyond study materials. It’s the evenings spent searching for answers, the uncertainty about whether you’re covering the right topics, and the possibility of paying for another exam attempt. Premium gives you a focused way to prepare. Practice questions and explanations help you check your understanding. Wrong-answer review and progress tracking show where to focus next. Flashcards, spaced repetition and timed mocks help you revisit difficult material and practise answering under pressure. The goal is to make your limited study time count—and build confidence from what you can actually answer, rather than how many hours you’ve spent reading. Better preparation can help reduce the risk of a costly retake and the extra time away from work, family or other goals. Think of Premium as an investment in your preparation and professional development: one organised system to help you use your time more effectively and approach exam day with greater confidence. Choose the certification and access period you need, with a one-time payment and no recurring subscription.
Get the complete question bank, Premium Key Study Notes, flashcards, mind maps, timed mocks, and analytics dashboard for Denken Exam.
