Conversion of WCB 2RB and Vice Versa - Measuring of Direction and Angles - Surveying 1

TL;DR

Learn how to convert whole circle bearings (WCB) to redu bearings (RB) and vice versa using quadrant rules and formulas.

Transcript

Hello friends today's topic of discussion is conversion of WCB to RB and vice versa before starting actual conversion we'll see what are the methods available for calculating of bearings so there are two types of bearings first is your whole ccle bearing the system of bearing is known as whole cyal bearing the short form is W CB and second is your ... Read More

Key Insights

• 🟠 The prismatic compass is used to calculate whole circle bearings (WCB) ranging from 0° to 360°.
• 🧔 Quadrantal bearings (QB) divide the circle into four quadrants for more precise bearing measurements.
• 🧔 Redus bearing (RB) is the conversion of WCB to quadrantal bearing and specifies the quadrant.
• ⚾ Converting WCB to RB or RB to WCB requires adding or subtracting angles based on quadrant rules.

Questions & Answers

Q: What is the difference between whole circle bearing (WCB) and quadrantal bearing (QB)?

WCB is calculated using a prismatic compass and ranges from 0° to 360°, while QB is a measurement of bearing in relation to North or South lines in one of the four quadrants.

Q: How do you convert WCB to RB?

The conversion of WCB to RB depends on the quadrant. If it's in the first quadrant, RB will be equal to WCB. For the second, third, and fourth quadrants, RB is calculated by subtracting WCB from 180°, 180°, and 360°, respectively.

Q: What is redu bearing (RB)?

Redu bearing is the conversion of WCB to quadrantal bearing. It specifies the quadrant in which the bearing lies and is used to avoid confusion in the direction of the bearing.

Q: How do you convert RB to WCB?

To convert RB to WCB, the total angle (360°) is subtracted by RB. The resulting angle will be the WCB, and the quadrant in which RB lies determines the direction of the bearing.

Summary & Key Takeaways

• Whole circle bearing (WCB) is calculated using a prismatic compass and ranges from 0° to 360°.

• Quadrantal bearing divides the circle into four quadrants, allowing bearings to be measured in relation to North or South lines.

• Redus bearing (RB) is the conversion of WCB to quadrantal bearing, and it is used to specify the quadrant of the bearing.

• Converting WCB to RB involves subtracting or adding angles depending on the quadrant, while converting RB to WCB requires similar mathematical operations.