CES Trainer vs Power System Lab

CES Trainer helps seafarers prepare for the CES (Crew Evaluation System) test. Practise CES-format questions for your department and level, see the correct answers, and know how ready you are before you visit the crewing office. Every question illustration is built into the app, so diagrams, symbols and photos open instantly, even offline on board. PRACTISE YOUR OWN TEST • Choose your department (Engine, Deck or Detailed), then the category and level, just like in the real CES. • Training mode shows the correct answer right after you choose. Exam mode keeps you guessing until the end. • Take 50 or 72 questions, or the whole category. Each new test continues where the last one stopped, so you cover every question. STUDY QUESTIONS WITH ANSWERS • Browse every question by department, category and level with the correct answer shown. • Search inside a category to find a topic fast. SEE HOW READY YOU ARE • A readiness score based on your last five tests, plus your best score and trend. • After each test: correct, wrong and skipped answers at a glance. • Review your mistakes: go through every wrong or skipped question with the correct answer highlighted. REPEAT THE TRICKY ONES • Save difficult questions to Favorites with one tap. • See which ones you missed last time and practise only your favorites. MADE FOR LIFE ON BOARD • Works completely offline. • Short sessions, a clean design and a dark mode that is easy on the eyes during a night watch. • Free, with no ads and no account. If the app helps you, you can buy the creator a beer in Settings. Question bank version 6.0.9. CES Trainer is an independent study app and is not affiliated with or endorsed by the official CES test provider. Some graphic elements created by Freepik.

Power System Lab helps cadets and marine electro-technical officers understand electrical principles, practise their skills and revisit difficult topics. Understand before you answer Explore 33 topics covering electrical fundamentals, generators, motors, protection, automation, measurements and ship systems. The library contains 575 learning steps with 412 short checks: plain-language explanations, worked examples, illustrations and interactive models. Before a new test, study material selected for its questions. Change the topic or test length to practise what you need. You can also open full topics from the library or go straight to the test. Try it on a virtual instrument Use 16 practice benches to connect probes, select a measurement mode, adjust values and interpret results. Practise voltage and resistance measurements, current loops, PWM signals, timers and other tasks. Feedback helps you understand what to change and why. Keep useful tools at hand The Tools section brings together 18 tools, including electrical calculators, signal scaling, Pt100/Pt1000 calculations, unit conversion, resistor codes and Modbus register conversion. See formulas and explanations alongside results. Create several ship clocks, give them your own names and choose a fixed UTC offset or a city's time zone. Build a steady learning habit Revisit mistakes, bookmark questions and use spaced review. Track completed tests, your daily goal and progress. The leaderboard and local study reminders are optional. Continue on the web Use the same account at powersystemlab.net/app/. Reading progress, completed instrument practice, favourite tools and ship clock settings synchronize when online. English and Russian The interface, topics and exercises support both languages. The available learning path is electro-technical officer. An account is required. After signing in, topics, virtual models, tools and ship clocks can be used without an internet connection while your account remains available on the device. New tests, sending answers and synchronizing test results require internet access. Reset a forgotten password by email or delete your account in Settings. This version is free. This version has no ads, subscriptions or in-app purchases. For independent study and reference. The app does not provide professional certification or replace formal training, equipment documentation, vessel procedures or safety requirements. Calculations and virtual instruments use the assumptions shown in the app. Support: support@powersystemlab.net