Deck Officer


River Endorsements

MODU Endorsements

Exam Code: ONC04
Endorsement: Mate of LT 500-1600 GRT
Modules: Q139 - Q142


Examination Modules and Topics: Click on Module Title for Sample Exam
Grey Boxes Represent Major Topic Headings In Accordance With 46 CFR Subchapter B

Q139-Navigation General: Oceans Q140-Chart Plot Q141-Navigation Problems: Near Coastal Q142-Navigation Problems: Oceans
Navigation and Position Determination Navigation Safety Regulations (33 CFR 164) Navigation and Position Determination Navigation and Position Determination Navigation and Position Determination Latitude by Meridian Transit (Sun Only)
Piloting Compass - Magnetic & Gyro Piloting Ocean Track Plotting Ocean Track Plotting Fix or Running Fix (Any Body)
Distance Off Principles, Operation, and Maintenance of Gyro Compass Distance Off Mercator Sailing Middle Latitude Sailing Star Identification
Bearing Problems Principles of Magnetic Compass Bearing Problems Estimated Time of Arrival Mercator Sailing Star Selection
Fix or Running Fix Gyro Compass Error/Correction Fix or Running Fix Speed by RPM Great Circle Sailing Times of Celestial Phenomena
Chart Navigation Magnetic Compass Error/Correction Chart Navigation Electronic Navigation Parallel Sailing Time of Meridian Transit (Sun Only)
Dead Reckoning Determination of Compass Error Dead Reckoning Piloting Estimated Time of Arrival Zone Time of Sun Rise/Set/Twilight
Speed by RPM Azimuth (Any Body) Electronic Navigation Distance Off Piloting Determination of Compass Error
Electronic Navigation Amplitude (Any Body) Instruments & Accessories Bearing Problems Distance Off Azimuth (Any Body)
Instruments & Accessories Terrestrial Observation Aids to Navigation Fix or Running Fix Bearing Problems Amplitude (Any Body)
Aids to Navigation Meteorology and Oceanography Charts, Nav Publication, & Notices to Mariners Determination of Compass Error Fix or Running Fix Meteorology and Oceanography
Charts, Nav Publication, & Notices to Mariners Characteristics of Weather Systems   Azimuth (Any Body) Celestial Observations Tides and Tidal Current
Nautical Astronomy & Navigation Definitions Ocean Current Systems   Amplitude (Any Body) Latitude by Polaris  
Watchkeeping Weather Charts and Reports   Terrestrial Observation    
Basic Principles, Watchkeeping Tides and Tidal Currents   Meteorology and Oceanography    
      Tides and Tidal Currents