Day Skipper Quiz
Tides: 9 Questions
The Tides Questions
-
When the sun, moon and earth are in line, at new moon and full moon, what sort of tides follow? -
What is the range of the tide between the first two entries in this table? -
Low water is 1.0 m at 0600 and high water is 5.8 m at 1200. By the rule of twelfths, what is the height of tide at 0800? -
You need a height of tide of 4.0 m to get over a marina sill. Reading this curve, when does the rising tide reach it? -
Your yacht draws 1.8 m. With these figures, how much water is there between the keel and the bar? -
The bar dries 0.8 m. Your yacht draws 1.5 m and you want 0.5 m under the keel. What height of tide do you need to cross? -
It is springs, two hours after high water. What is the tidal stream at diamond B doing? -
In a tidal stream atlas, what do the figures 12,23 beside an arrow mean? -
The wind is blowing directly against the tidal stream. What does that do to the sea?