8th Grade Coordinates Quizzes, Questions & Answers

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The use of a compass has been there for years now. It is mostly used in navigation of space and water vessels. Take up the navigation (n) - part 2 quizzes below and gauge how much you know.

Questions: 103 | Attempts: 359 | Last updated: Sep 5, 2025

Sample Question 1
The magnetic variation value of a given point on the Earth's surface can be obtained by

(1) referring to the table of magnetic variation in the cockpit.

(2) referring to the isogonic lines on aeronautical charts

(3) calculating the angular difference between the meridian of a given point and the Greenwich meridian.

(4) calculating the difference between magnetic and compass heading.

Sample Question 2
Lines on geographical charts joining points of equal magnetic variation, are called

(1) izogonic lines.

(2) agonic lines.

(3) izoclinic lines.

(4) izobars.

Sample Question 3
Lines on geographical charts joining points of a zero magnetic variation, are called

(1) izogonic lines.

(2) izoclinic lines.

(3) agonic lines.

(4) aclinic lines.