Tides and Currents Quiz

What is the frequency at which diurnal tides normally occur?

Under which conditions do spring tides occur?

Which of the following best describes ebb current?

How is the speed of tidal current commonly measured?

What are tidal current subordinate stations?

What is the reference point from which the height of a light is measured?

When do spring tides occur?

What is the period during high or low tide with no change in water height called?

Which statement defines spring tides?

What is the primary datum for soundings on charts used in the United States?

What does the term 'range of tide' refer to?

Which reference datum is used to determine the heights of land features on most charts?

How is the height of tide correctly defined?

Tide and Current Questions

The height of a light is measured from mean lower low water.
Spring tides occur when then moon is new or full
Neap tides occur when the moon is at quadrature
The period at high or low tide during which there is no change in the height of the water is called the stand of the tide.
The term "spring tides" refers to tides with lows lower than normal and highs higher than normal.
The datum of soundings for charts used in the United States is mean lower low water.
Tide refers to the vertical movement of water.
The range of tide is the difference between the heights of successive high and low tides.
The reference datum used in determining the heights of land features on most charts is mean sea level.
The height of tide is the vertical distance from the tidal datum to the level of the water at any time.
On the west coast of North America, charted depths are taken from mean lower low water.
Mean high water is the average height of high waters.
Diurnal tides normally occur with a single high and a single low water each tidal day.
Spring tides occur when the sun, moon and earth are nearly in line, in any order.
Ebb current is the horizontal movement of the water away from the land.
The speed of the current is given in knots.
Tidal current subordinate stations broadcast tidal current information on the radio.

Test your knowledge about tides and currents with this quiz. Explore concepts like spring and neap tides, tidal ranges, and more. Perfect for oceanography students or anyone interested in marine science!