Coast Guard Test Study Guide 2026
Everything you need to pass the Coast Guard Test exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Coast Guard Test Exam Format at a Glance
📚 Coast Guard Test Topics to Study (45)
✍️ Sample Coast Guard Test Questions & Answers
1. What does a series of five or more short, rapid blasts on a vessel's horn indicate?
Five or more short, rapid blasts is the internationally recognized danger or doubt signal.
2. A squall is best described as:
A squall is a sudden, brief, violent increase in wind speed, often accompanied by rain, and typically lasts only a few minutes before subsiding.
3. What does the acronym NAVTEX stand for?
NAVTEX (Navigational Telex) is an international automated direct-printing service that broadcasts maritime safety information including weather warnings and navigational notices.
4. What causes radiation fog most commonly found in harbors and estuaries during early morning hours?
Radiation fog forms when land radiates heat at night, cooling the surface air to its dew point; it is common in sheltered bays and rivers after clear, calm nights.
5. When towing a disabled vessel, what is a key safety concern?
A towline under tension can snap and recoil dangerously, so crew must stay clear of the line.
6. How frequently must inflatable life rafts on inspected vessels be serviced?
Inflatable life rafts must be serviced annually or per manufacturer's specifications at a Coast Guard-approved service station to ensure reliability in an emergency.