Third Assistant Engineer Exam Preparation

Unlimited · Motor, Steam and Gas Turbine pathways

Prepare for your next step as an Engine officer. Practice examination questions, connect the answers to the engineering principles, and build knowledge you can use on watch.

Try a free officer study preview without an account: up to 15 questions per session, within 60 active study minutes per day.

Choose your study pathway

Motor · Steam · Gas Turbine

Your National Maritime Center evaluation and Approved to Test letter determine your actual examination. Your selected study pathway does not replace those requirements.

Propulsion plant subjects · Electricity and control systems · General engineering subjects · Safety and environmental protection

Keep your learning history

Create a free account to save eligible signed-in results and see your improvement over time. Full officer pools and the complete Academy library require paid or sponsored Academy Pro access.

From rating study to officer preparation

Already studying as a Qualified Member of the Engine Department? Explore officer-level practice separately from your rating studies. Selecting a study pathway does not establish eligibility for an officer credential.

Is this an official United States Coast Guard service?

No. Mariner Notebook is an independent examination-preparation and professional-record platform. Official examination and eligibility requirements remain with the United States Coast Guard and National Maritime Center.

What is free, and what requires Academy Pro?

Guest officer study is limited to 15 questions per session and 60 active minutes per day. Selected public lessons and teaching examples remain free. Full officer pools and the complete Academy lesson and flashcard library require paid or sponsored Academy Pro access. Artificial Intelligence credits are separate.

How are Current and archived questions different?

Current practice follows the selected official subjects. Legacy and Historical questions are separately identified additional practice; they are not silently substituted for Current official modules.