1. a) Prove that Dep/D’Long = Cos(Lat).
b) Explain the terms:
i. Nautical mile
ii. Deviation
iii. Isogonals
iv. Dead Reckoning Position
v. Leeway (15)
2. a) Describe Mercator projection of a chart and the advantages and disadvantages of
__a Mercator Chart.
b) Explain the Principle of a Gnomonic Projection. What are the advantages and
__disadvantages of a Gnomonic Projection? (15)
3. a) How are day and night caused? How and why does the duration of daylight hours
__vary throughout the Earth?
b) When and where will the length of day and night be of equal duration on the
__Earth’s Surface?