Spanish original · English

Hover or tap underlined Spanish terms to see their translation and exam tip.

¿Qué es el “Dátum” en el contexto de la navegación electrónica?What is the “Datum” in electronic navigation?

Show the answer

Correct answer: d) The mathematical model of the Earth GPS uses to calculate positions, such as WGS 84.

Why it is correct

The datum is the Earth model that gives coordinates their meaning.

Why the others are not

  • a) It is not a time reference.
  • b) That is chart datum.
  • c) It is not a route point.

How to work it out in the exam

  1. GPS and chart must use the same datum.

Where this question comes from

Try it: Navigation instruments

Pending instructor review. Machine translation, not reviewed.