Electrical Quiz
1. When cruising without shore power, what percentage of total battery capacity can be used efficiently?
  • 30%
  • 40%
  • 50%
2. Once you have determined the average daily electrical demand for your boat (in Ah), what is the minimum battery bank size, assuming you only want to charge once per day?
  • 2x daily Ahs
  • 3x
  • 4x
3. How many amp-hours/day does the typical below decks autopilot consume while steering on passage?
  • 25Ah
  • 50Ah
  • 100Ah
4. For most efficient charging, alternators should be sized to what percentage of total battery bank capacity ?
  • 25%
  • 50%
  • 100%
Score =
Correct answers:
Additional quizzes

There is something in common between the arts of sailing and climbing. Each is intimately concerned with elemental things, which from time to time demand from men who practice those arts whatever self-reliance, prudence, and endurance they may have. The sea and the hills offer challenges to those who venture upon them and in the acceptance of these and in meeting of them as best he can lies the sailor’s or mountaineer’s reward. An essential difference is, perhaps, that the mountaineer usually accepts the challenge on his own terms, whereas once at sea the sailor has no say in the matter and in consequence may suffer more often the salutary and humbling emotion of fear

H.W. Tilman, Mischief in Patagonia