Question
Download Solution PDFIn the ______, the reference meridian is prefixed and the direction of measurement is affixed to the numerical value of the bearing.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Quadrantal Bearing system:
- The quadrantal bearing (QB) of a line is the acuate angle which the line makes with the meridian.
- Quadrantal bearing is measured either from north end or south end as the case may be i.e. whichever is nearer to the line. The quadrantal bearing of a line can vary from 0° to 90°
Conversion table for WCB and QB:
| Quadrant | WCB | QB |
| I | θ = 0° to 90° | NθE |
| II | θ = 90° to 180° | S(180° - θ)E |
| III | θ = 180° to 270° | S(θ - 180°)W |
| IV | θ = 270° to 360° | N(360° - θ)W |
Additional Information Whole circle Bearing system:
- In this system, the bearing of the line is measured from the north in clockwise direction.
- Thus whole circle bearing system (WCB) of a line is the horizontal angle which the line makes with the north end of the reference meridian.
- The WCB of a line can vary from 0° to 360°.
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