Civil Engineering - Surveying - Discussion

It should be D.

They are assumed to be run parallel to each other but in actual they converges from equator to North poles and south poles.

It's equator to poles beside north or south.

Whether its magnetic meridian or true meridian in both conditions it starts converging from the equator to north pole and south pole.

Just take an example : the magnetic lines of earth can never be parallel, because these line meet at poles. So if you can see these magnetic lines at equator, they have more gaps but at the poles they are crowded at one point.

SO IT MEANS TRUE MERIDIAN ARE CONVERGING FROM EQUATOR TO POLES.

Thanks.

True meridian at different places are parallel to each other.

What about running from south to north? Can any one please explain?

187 from equator to North and South pole.

Magnetic line for perpendicular to poles and parallel at equator.