If the whole circle bearing of a line is zero degrees, then the reduced bearing of the line is in the _____ direction.
- Awest
- BnorthCorrect
- Csouth
- Deast
Solution
Concept
WCB is measured clockwise from north, so WCB 0° means the line points due north.
Formula
For 0° ≤ WCB ≤ 90°: RB = N (WCB) E
Step-by-step solution
1. WCB = 0°, which lies in the first quadrant (0° to 90°). 2. RB = N θ E = N 0° E 3. N 0° E means the line points due north.
Explanation
Whole circle bearing is measured clockwise from the north direction. If WCB is 0°, the line lies along north. So the reduced bearing is N 0° E, which is the north direction.
Why the other options are wrong
West is WCB 270°, south is WCB 180° and east is WCB 90°.
Shortcut
WCB 0° = N, 90° = E, 180° = S, 270° = W.
Common mistake
Thinking that 0° means east, as in mathematics, where angles start from the x-axis.
Correct answer: B) north