Computer · Surveying
The following observations were made on a closed traverse PQRSP: LineFore BearingBack BearingPQ35° 20'216° 40'QR155° 30'336° 30'RS293° 00'113° 00'SP10° 50'191° 10' If the bearings of line RS are free from local attraction, the correction that needs to be applied to each angle (assuming equal distribution of error) is:
- 1- 0° 40'✓
- 2+ 0° 40'
- 3- 2° 40'
- 4+ 2° 40'
Correct answer
- 0° 40'
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