The Full Wiki

Spheroid: Quiz


Question 1: In the current ________ model, the radius is approximately 6,378.137 km at the equator and 6,356.752 km at the poles (a difference of over 21 km).
Global Positioning SystemLongitudeWorld Geodetic SystemGeodesy

Question 2: A spheroid is a quadric surface obtained by rotating an ________ about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters.
Conic sectionOrbitElliptic orbitEllipse

Question 3: If the ellipse is rotated about its minor axis, the result is an oblate (flattened) spheroid, like a ________.

Question 4: In ________, in fact, the Earth is often assumed to be a standard oblate spheroid.
Geographic information systemGeographyMapCartography

Question 5: If the generating ellipse is a circle, the result is a ________.

Question 6: Because of its rotation, the ________'s shape is more like an oblate spheroid than a sphere.


Got something to say? Make a comment.
Your name
Your email address