Question 902Navigation General70% to pass
What should you apply to a fathometer reading to determine the depth of water?
AI Explanation
The correct answer is C) Add the draft of the vessel.
The fathometer reading provides the depth of water under the keel of the vessel. To determine the total depth of water, you need to add the draft of the vessel to the fathometer reading. This is because the draft represents the distance from the waterline to the bottom of the keel, so adding the draft to the fathometer reading gives you the total depth of water.
The other options are incorrect. Subtracting the sea water correction or the draft of the vessel would give you the depth under the keel, not the total depth of water. Adding the sea water correction would also not provide the total depth.
Related Questions
#900 Which of the following must the electronic chart of an ECDIS display, as required by IMO/IHO? #901 Prevailing winds between 30°N and 60°N latitude are from the _______________.#903 Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. The dry bulb thermometer reads 34°F and the wet bulb thermometer reads 31°F. How would you encode the air temperature groups in the report? #904 Raster-scan chart data is _______________.#905 Which of the following data layer categories is NOT displayed on ECDIS?