Practice mode
Train with CES-style deck oil tanker questions, answer choices, and clear feedback after each attempt.
CES-style practice for deck oil tanker assessments.
A focused self-study app for seafarers preparing for deck department oil tanker safety tests, with a free sample, mixed attempts, instant feedback, and final review.
PRO access
Monthly and yearly PRO subscriptions unlock the full question bank, mixed attempts, and final answer review.
For self-study
This app is an independent educational practice tool. It does not issue maritime certificates.