Revise with instant feedback: the moment you pick an answer you see whether it was right, with the explanation where available. Untimed — ideal before you sit a mock exam. Questions you miss keep coming back until you know them.
Exam-day conditions: no feedback until you submit, each module scored separately like the real test, with a full question-by-question review at the end.
The real exam is passed module by module: Rules of the Road requires 90%, most other modules 70%. Chart-plotting modules are taken on paper and not included.
The free sample gives you 20 to 30 questions per module. The full bank contains every available official question, with written explanations on the popular small-vessel credentials, one-off $29, lifetime access on up to 3 devices, all credentials included.
You must pass each module separately. Most modules require 70% to pass.
The exam covers 1 module: Navigation and Deck General – Safety.
This page includes free sample questions drawn from the official USCG sample examinations, with a full bank of around 50 questions across all modules available with lifetime access.
Every question comes from the U.S. Coast Guard National Maritime Center's published sample examinations, which are U.S. government works in the public domain. Wheelhouse Prep is not affiliated with or endorsed by the U.S. Coast Guard.
No. The free practice tests work in your browser with no signup. Your score history is saved on your own device.
A selection of free questions from the official USCG sample examinations. Use the interactive modules above for timed, scored drills.
The most likely time for oil pollution while bunkering is when __________.
Why: Topping off is when tanks are nearly full and an overflow can occur in seconds; flow may still be substantial and the remaining ullage is small, making it the most likely moment for a spill.
Which of the following statements is/are TRUE in regard to Ro-Ro vessels' spaces that are "specially suitable for vehicles"?
Which agency publishes the Light Lists?
Why: The U.S. Coast Guard publishes the Light List, describing lights, buoys, and other aids to navigation in U.S. waters. Charts and tide data come from the National Ocean Service.
On an inspected vessel, when may a stability test be dispensed with?
Which of the signals listed is required to be displayed at night while bunkering at a dock?
Which is a precaution you should take before bunkering?
Static electricity may be built up by the __________.
In plugging submerged holes, why are rags, wedges, and other materials used in conjunction with plugs?
What is the purpose of a striking plate?
If a vessel takes a sudden, severe list or trim from an unknown cause, which action should you take FIRST?
Why: A sudden unexplained list could be negative GM, flooding, or shifted weight, and each requires a different remedy. Counterflooding or shifting weight against the wrong cause, such as negative GM, can capsize the vessel, so find the cause first.