Maintain a Routine with Your Studying.
You would be mistaken if you thought that your need for training and certification would end the moment you drove inland from the coast. The time that sailors have available to them when they are not on duty, participating in drills, or standing watch is put toward the development of their professional abilities and qualifications.
The process of education and training continues even though they are already at sea. The end goal is to make sure that they have a thorough understanding of their area of expertise. When one considers that modern submarines contain hundreds of valves, pumps, pipelines, and other forms of complex technology, this is a lot of information to take in.