Question

A bearing with reference to the geographic north south line is called__________.
A. forward bearing
B.backward bearing
C. magnetic bearing
D. true bearing

Answer 1

Hint: A bearing is a measurement of direction between two points which can be either azimuth bearing or a quadrant bearing. An azimuth bearing uses all 360° of a compass to imply direction.

Complete Answer: In land surveying, a bearing can be either clockwise or counterclockwise angle between north or south and a direction. In surveying, bearings can be implied to true north, magnetic north, grid north.

Looking at the above options:

Option a: The bearing which illustrates the angle between a line from Magnetic North to our region, and a line from our direction to the cabin is known as "forward bearing." This option is incorrect.

Option b: The bearing of a line which is calculated in the direction back to the direction of the growth of survey is called the 'back bearing' of the line. It is used to observe line features. This option is incorrect.

Option c: A magnetic bearing is a type of bearing that helps a load using magnetic levitation. This option is incorrect.

Option d: A bearing concerning geographic north-south line is called true bearing. The true bearing of a line is the horizontal angle which it makes with the true Meridian through one of the extremities of the line. The compass needle will be parallel to the magnetic meridian. This option is correct.

So, the correct answer is option d.

Note:
-True bearing and magnetic bearing in geography normally imply true north and magnetic north.
-True bearings use the number of degrees calculated clockwise from the north an object is.
-The horizontal angle between the true meridian and the survey line is the true bearing.