USCG Exam Practice · Latitude, longitude, and geographic coordinates
On a Mercator projection chart, how do lines of latitude and longitude appear?
- AAs curved lines converging toward the poles
- BAs straight lines crossing at right angles✓ correct
- CAs straight lines that converge at the meridians
- DAs great circles intersecting at oblique angles
Why B is correct
The Mercator projection presents lines of latitude and longitude as straight lines crossing at right angles. This property also causes rhumb lines to appear as straight lines on the chart. (Bowditch Ch. 4 §402)
Cited:Bowditch Ch. 4 §402
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