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About this collection
The CES collection contains questions for seafarers' professional knowledge checks. Start with the main question bank, study answers one at a time, or use a random selection to check your knowledge in exam mode.
“CES” contains 10,413 questions across 1 collection.
Learning
Learning mode has no timer. After answering, you see feedback and the correct options. You can return to a question and repeat a topic.
Exam
A practice exam lasts up to 60 minutes and includes up to 50 questions from the selected collection. Correct answers and results appear after completion.
Sample questions and answers
These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.
XNYM. Which type temperature sensors are shown on the picture?
One correct answer
OHUC. On which is it compulsory with ODME in connection with the cargo system?
One correct answer
WKSS. Indicate the correct name for the tool on the sketch:
One correct answer
HDAT. For a large decrease in the specific gravity of the oil, the gravity disc hole diameter should be:
One correct answer
EJJC. What is the period of validity of Safety Radio
One correct answer
Before you start
Do I need to register to start?
Guest access lasts 23 minutes. Free registration lets you continue without limits, save progress and review mistakes in your account.
What language are the questions in?
Questions and answer options retain the language of the original bank. You can change the interface language separately.
Can I use my result as an official document?
No. This is independent practice. A result does not replace an examination, certificate or knowledge check by an authorised organisation.