Question 1518Navigation General70% to pass
If a chart indicates the depth of water to be 6 fathoms and your draft is 6.0 feet, what is the depth of the water under your keel? (Assume the actual depth and charted depth to be the same)
AI Explanation
The correct answer is C) 30.0 feet.
Explanation:
1. 1 fathom = 6 feet, so 6 fathoms = 36 feet. Since the chart indicates the depth is 6 fathoms, and your draft is 6.0 feet, the depth of the water under your keel is 36 feet - 6 feet = 30.0 feet.
2. This calculation is based on the standard conversion between fathoms and feet, and the understanding that the charted depth and the actual depth are the same.
3. The other options are incorrect because:
A) 6.0 feet is the draft, not the depth of water under the keel.
B) 26.5 feet is not the correct calculation.
D) 56.5 feet is not the correct calculation.
Related Questions
#1516 The first point of Aries is the point where the Sun is at _______________.#1517 Diurnal aberration is due to _______________.#1519 In high latitudes, celestial observations can be made over a horizon covered with pack ice by bringing the sun tangent to the ice and _______________.#1520 A facility used for the discharge of a cargo of a particular hazard, such as chlorine, butane or ethane, must have what to warn water traffic of an immediate danger during fire or cargo release? #1521 A bold reef is a reef _______________.