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Exam (elaborations)

QMOW Questions and Correct Answers | Latest Update

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6 rules for D.R. ~~>1. Every hour on the hour. 2. After every course change 3. After every speed change 4. After every fix or running fix 5. After obtaining a single line of position or other estimated position. 6. A new course line shall be placed from each fix or running fix When...

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  • September 10, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • QMOW board
  • QMOW board
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ExamArsenal
1 | P a g e | © copyright 2024/2025 | Grade A+




QMOW Questions and Correct Answers |
Latest Update
6 rules for D.R.


✓ ~~>1. Every hour on the hour.

✓ 2. After every course change

✓ 3. After every speed change

✓ 4. After every fix or running fix

✓ 5. After obtaining a single line of position or other estimated position.

✓ 6. A new course line shall be placed from each fix or running fix




When to call captain for weather


✓ ~~>Significant weather changes. If barometer changes more than 0.06

inches in an hour (increases or decreases) or 0.1 inches over 3 hours.

Wind shifts greater than 30 degrees(with sustained winds of 10 or more

knots), wind speed changes of 15 knots or more, or true wind is greater

than 30 knots




Fixing the Ship's Position


✓ ~~>*Open Ocean*

Fix Interval: Every 30 minutes




Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+


Cross Track Error: 500 yards




*Coastal & Patrol Water*


Fix Interval: Every 15 minutes


Cross Track Error: 250 yards




*Restricted & Freedom of Navigation Waters*


Fix Interval: Every 3 minutes


Cross Track Error: 50 yards (unless otherwise determined by CO)




*High Speeds*


In Open Ocean: 15 mins


In Coastal/Patrol Water: 6 mins.


In Restricted/FON: No greater than 3 mins.




Open Ocean


✓ ~~>5NM from nearest land, shoal water or Hazard to navigation




Coastal Waters



Master01 | September, 2024/2025 | Latest update

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