Full access allows:
- Solve all tests online without limits;
- Remove all advertisements on website;
- Adding questions to favorite list;
- Save learning progress;
- Save results of practice exams;
- Watching all wrong answered questions.
- Homepage »
- Mate (Rivers (Limited Tonnage: Less Than 500-1600 GRT)) »
- Q393 - Navigation Problems: Chart Plot
51. The following questions (1-10) are based on the Army Corps of Engineers Mississippi River Maps (Cairo to the Gulf) and the Light List.
AHP = Above Head of Passes
LMR = Lower Mississippi River
UMR = Upper Mississippi River
OHR = Ohio River
ACOE = Army Corps of Engineers
At 0620 on 25 November, you depart Cape Girardeau fleeting area (mile 53.0 UMR) bound for Bisso Towboat Co. Mooring New Orleans, LA, (mile 102.0 AHP). Your engines are turning for 8.2 mph. You estimate the current at 1.5 mph. What is your speed over the ground?
Speed over ground is calculated by adding the vessel's speed through the water to the current's speed when the current is following. Therefore, 8.2 mph plus 1.5 mph equals 9.7 mph.
Comments (0)
There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it
Only signed in users can write comments
Signin