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Reading charts and chart symbols – DS & YM
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Colours on the chart
The charts that you use on this course are published by the UK Hydographical Office (UKHO), known as Admiralty Charts.
Chart colours
On Admiralty Charts what colour is land?
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1 point
White
Blue
Green
Yellow
On Admiralty Charts what colour is shallow water?
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1 point
White
Blue
Green
Yellow
On Admiralty Charts what colour is deep water?
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1 point
White
Blue
Green
Yellow
On Admiralty Charts what colour is tidal zone? (the bit that is covered by the tide)
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1 point
White
Blue
Green
Yellow
Chart 5011
What do we us chart 5011 for?
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1 point
It is the chart of Mounts Bay.
To find the tides in the English Channel.
To find out what the chart symbols mean.
To measure distances.
Measuring distance
Which scale do you use to measure distance on a chart?
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1 point
Longitude (scale on top and bottom)
Latitude (scale on right and left)
The scale next to the key
4cm = 1Nm
Measuring bearings
How do measure angles?
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1 point
Clockwise from north
Anti-clockwise from south
Clockwise from east
Anti-clockwise from west
Plotting our position
Latitude is...
1 point
How far east or west of Greenwich you are.
How far east or west of New York you are.
How far north or south of Paris you are.
How far north or south of the Equator you are.
Clear selection
Longitude is...
1 point
How far east or west of Greenwich you are.
How far east or west of New York you are.
How far north or south of Paris you are.
How far north or south of the Equator you are.
Clear selection
The arrow above shows which point on the scale.
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1 point
30º 30’.900N
40º 35’.000N
40º 30’.530N
39º 30’.900N
The arrow above shows which point on the scale.
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1 point
074º 59’.700W
073º 59’.300W
074º 07’.530W
073º 62’.900W
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First Name
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Last Name
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At which RYA Centre are you studying?
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Penzance Sailing Club
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