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48,213 questions with answers

USCG Exam Questions and Answers

The complete bank of published U.S. Coast Guard exam questions, every one with its correct answer, organized by exam module and searchable.

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The Coast Guard publishes the question pools its license exams draw from, and this site hosts them in full: deck, engineering, and GMDSS. Answer any question and the correct choice is revealed instantly, along with the USCG reference and any illustration the question uses. Whether you are cross-checking a practice test from school, settling an argument on the dock, or grinding through a full module before exam day, the answer is here.

Every question is multiple choice with four options, exactly as it appears on the exam. Use the question search to find a specific question by its wording, or browse a module below and quiz yourself in order or at random.

Browse the question bank

Deck 12,788 questions

Engine 6,127 questions

GMDSS 600 questions

GMDSS 605 questions

Looking for a questions-and-answers PDF?

Many mariners search for a USCG exam questions and answers PDF to study offline. A static PDF of 20,000+ questions is a rough study tool: you cannot search it well, it does not grade you, and it has no idea which questions you keep missing. The online bank does all three, and registered members can generate and print formal practice tests, which gives you the paper study experience with the questions that matter most to your exam.

Print a generated test, take it at the galley table, then enter your answers online to see your score and log your misses. It is the best of both worlds.

How the answers work

Pick a choice and the system grades you instantly. Get it right and you will see a confirmation. Get it wrong and the correct answer is shown so you learn on the spot. Where the Coast Guard provides a reference for the answer, it is displayed with the question, and illustration-based questions include the official exam illustration.

Everyone gets free graded questions every day, no account needed. A free account raises the daily allowance and unlocks progress tracking, and a subscription removes the limits entirely and adds unlimited timed exam simulations.

Sample questions from the bank

These are real questions from the U.S. Coast Guard question pool, exactly as they appear in the bank. Click through to any question to answer it and see whether you got it right.

Engine · General Subjects · Question 2

If a heat exchanger is designed to condense refrigerant vapor using central cooling fresh water as a condensing medium, what statement is true?

  1. A The refrigerant vapor loses latent heat; the central cooling fresh water loses latent heat.
  2. B The refrigerant vapor loses sensible heat, the central cooling fresh water gains latent heat.
  3. C The refrigerant vapor loses latent heat, the central cooling fresh water gains sensible heat.
  4. D The refrigerant vapor gains latent heat, the central cooling fresh water loses sensible heat.
Answer this question and see the solution
Engine · General Subjects · Question 5

The general purpose of a heat exchanger is to __________.

  1. A maintain steady pressure in a system
  2. B eliminate hot air from the condenser
  3. C heat, or cool one fluid by means of another fluid
  4. D reduce the engine room temperature in tropical climates
Answer this question and see the solution
Engine · General Subjects · Question 6

Pressure in an operating hydraulic system is developed __________.

  1. A solely by the charge applied by the accumulators
  2. B by resistance to the fluid flow through the system
  3. C only by the pump as its primary function
  4. D by the thermal input to the system's fluid
Answer this question and see the solution

Questions and answers FAQ

Q Are these the real USCG exam questions and answers?

Yes. The pools were released by the United States Coast Guard, and license exams draw from the same published material. Each question shows its correct answer when you attempt it, along with the USCG reference where one exists.

Q How many USCG exam questions are in the bank?

The bank currently holds tens of thousands of questions across deck, engineering, and GMDSS modules, including the current pools and older retired sets.

Q Can I download the questions as a PDF?

Registered members can generate practice tests and print them, which works better than a giant static PDF: your printed test contains a focused set of questions, and you can grade it online afterward.

Q Is it free to see the answers?

You get free graded questions every day without an account, and more with a free account. Subscribers get unlimited answers across their exam track.

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