, Training for Mariners. The First with Online Study for the Maritime Industry. Multiple Choice Quizzes with Illustrations for United States Coast Guard Exam Preparation Assistance.       


Click Here to Enter SeaSources Online USCG License Prep Site


The subjects listed below are currently available for testing in the new online study room and are available for download to your computer. Click on subject below for details.

Engineering Examination Questions

All Engine Room Questions

Engine Room Electrical         

Engine Room General          

Engine Room Safety            

Engine Room Steam            

Engine Room Motor   

QMED Oiler          

Deck Examination Questions

Master 25/50/100 Ton

Operator Uninspected Passenger Vessel

All Deck Questions

Able Seaman Questions

Advanced Subjects, Unlimited Oceans Master, Mate

Rules of the Road  

Aids to Navigation  Glossary Included

Breathing Apparatus

Cargo Equipment 

Cargo Stowage

Charts and Publications 

Chemical Testing

Right Whales

Damage Control  

Deck Engineering

Deck Safety

Emergency Procedures 

FCC Exam Questions

Fire Fighting Glossary Included 

First Aid  


Great Lakes

Hazardous Cargo

Inert Gas

Inland Navigation  

Instruments and Accessories



Liquid Cargo and Bunkering

Marine Radio Operator 

Meteorology  "Glossary Included" 

Mobile Offshore Drilling Unit

Latest NMC / USCG Questions

Celestial Navigation

Navigational Procedures

Pollution Control and Prevention

Rules and Regulations

Plotting/Navigational Problems


Survival Craft

Seamanship   Glossary Included

Sailing Vessels  

Ship Handling 

Ships Construction Glossary Included  

Ships Business


Stability and Trim Glossary Included 


Tides and Currents Glossary Included 



Common Knots

Radar Plotting



All Coast Guard Deck Examination Questions

A Free Install of SeaSources App is available for Android Here. You must be a member of the online study to log in to the app.

IOS Version of App Coming Soon.

 Listed below is a table of contents of the questions on this subject as they appear in the new online study. Click on the "Enter Online Study" link above to begin preparing for your exam.

From the pull down menu in the online study select from the following topics:

All New USCG Deck Question Databank 9_20_13

  • Rules of the Road: 1,120 questions and  131 illustrations

  • Aids to Navigation: 320 questions and  29 illustrations

  • Breathing Apparatus: 40 questions and 3 illustrations

  • Bulk Liquid Cargo and Bunkering: 160 questions and 0 illustrations

  • Cargo Equipment:  160 questions and 3 illustrations

  • Cargo Stowage:  220 questions and 4 illustrations

  • Charts and Publications:  240 questions and 4 illustrations

  • Chemical Testing and Right Whales: 40 questions and 0 illustrations

  • Damage Control:  60 questions and 0 illustrations

  • Deck Engineering:  100 questions and 0 illustrations

  • Deck Safety: 80 questions and 0 illustrations

  • Emergency Procedures: 140 questions and 1 illustrations

  • Fire Fighting: 440 questions and 1 illustrations

  • First Aid: 140 questions and 0 illustrations

  • Great Lakes: 180 questions and 1 illustrations

  • Hazardous Cargo: 100 questions and 0 illustrations

  • Inert Gas: 60 questions and 0 illustrations

  • Inland Navigation: 200 questions and 3 illustrations

  • Instruments and Accessories: 400 questions and 6 illustrations

  • Lifesaving: 380 questions and 11 illustrations

  • Meteorology: 420 questions and 8 illustration

  • Navigational Procedures: 260 questions and 4 illustration

  • Plotting: Chesapeake Bay, Block Island, Long Island Sound

  • Pollution Control and Prevention: 180 questions and 0 illustrations

  • Rules and Regulations: 620 questions and 0 illustration

  • Sailing Vessels: 140 questions and 3 illustrations

  • Ship Handling: 460 questions and 6 illustrations

  • Ships Construction: 180 questions and 2 illustrations

  • Ships Business: 520 questions and 2 illustrations

  • Signaling: 240 questions and 0 illustrations

  • Stability and Trim 292 questions on stability general. 562 questions on working problems and There are 177 illustrations

  • Survival Craft: 329 questions and 2 illustrations

  • Tankerman: 180 questions and 0 illustrations

  • Tides and Currents: 240 questions and 0 illustrations

  • Towing: 100 questions and 0 illustrations

  • Watchkeeping: 100 questions and 0 illustrations

  If you are studying for a United States Coast Guard Deck License exam which includes any of these modules, you should  work through these questions until you are scoring 90% or better on them.

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Copyright 2000 by All rights reserved.
Revised: 12 Mar 2018 13:16:31 -0400 

Contact Phone: 207-629-7004

Email: Captain Steve 


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For details on license requirements, application forms,  licensing fees, and testing locations, visit the United States Coast Guard / National Maritime Centers web site and look under Mariner's information center. The questions used in the online study are once again available to the public in PDF format from the NMC link above. The illustrations are not yet available for some of these questions.

Vessel Nomenclature  

View Screenshots of "TesTTaker" Software  

View Screenshots/Tutorial of Online Study

View comments from SeaSources Members 

See also:

SeaSources online Celestial Navigation Course 

MARYLAND NAUTICAL  Great source for practice charts and study guides


National Oceanic & Atmospheric Administration (NOAA)

The Navigation Center

Chart No. 1 Nautical Chart Symbols Abbreviations and Terms

Bluewater Books and Charts 

Search CFR'S Online

Additional Online Testing Services for School Administrators

Required Subjects for all Deck Licenses

Required Subjects for all Engineering Licenses

Required Subjects for Mobile Offshore Drilling Units, MODU.

Sea Service Requirements for Coast Guard Licenses