61-01. BASICS OF NAVIGATION
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1. What is the convergence at 50°00’N between the merid¬ians 105°00’Wand 145°00’Won the Earth?
2. “Kilometer” is defined as:
3. The force acting on the needle of a direct reading compass varies:
4. When a magnetized compass needle is freely suspended in the Earth’s magnetic filed, when free from extraneous magnetic influence, it will align itself with:
5. The great circle track X => Y, measured at “X” is 319° and measured at “Y” is 325″. Consider the following statements:
