If the whole circle bearing of a line is zero degrees, then the reduced bearing of the line is in the _________ direction.

Concept of Whole Circle Bearing and Reduced Bearing:

In surveying, bearings are used to describe the direction of a line with respect to a reference direction. There are two common systems of bearings: Whole Circle Bearing (WCB) and Reduced Bearing (RB).

• Whole Circle Bearing (WCB):
  • In WCB, the direction of a line is measured clockwise from the north direction. The bearing is expressed in degrees ranging from 0° to 360°.
• Reduced Bearing (RB) or Quadrantal Bearing (QB):
  • In RB, the bearing is measured from the north or south towards the east or west direction. The bearing is expressed in degrees ranging from 0° to 90°, followed by the direction (N or S) and the direction towards which it moves (E or W).

Explanation of the Correct Option:

• Option 3: North
  • If the whole circle bearing of a line is 0 degrees, this means the line is directed exactly towards the north. In WCB, 0° is the reference direction, which is the north direction.
  • Therefore, the reduced bearing (RB) of the line, when WCB is 0°, would be N 0° E, which simply means the direction is due north. In RB, it is often just referred to as north (N).
  • This is because in the RB system, any bearing measured directly along the north direction remains as north without the need for an east or west component.