Chart projections, Mercator intro (29-05-18)

Question 1

At what point is a chart 100% accurate?

Answer 1

At the point of tangency

Question 2

What is meant by a chart being orthomorphic/conformal?

Answer 2

Graticules intersect at 90 deg

Scale is correct or mathematically adjusted

Question 3

What kind of plotting can be done on a Mercator chart?

Answer 3

Rhumb line plotting

Question 4

How does the scale of a Mercator chart expand from the equator?

Answer 4

Rate of secant(lat)

Question 5

When comparing scales of charts what makes a scale smaller?

Answer 5

Being a bigger ratio

easier to compare when converted to a fraction