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Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 1 (Q.No. 26)
Surveying
26.
In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
adding 180°, if the given bearing is less than 180°
subtracting 180°, if the given bearing, is more than 180°
changing the cardinal points, i.e. substituting N for S and E for W and vice-versa
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
29 comments Page 2 of 3.
Vikash said:   9 years ago
Can someone explain me the difference between w.c bearing and quadrilateral bearing?
Kekmi yomgam said:   8 years ago
You are right @Nilesh.
Kekmi yomgam said:   8 years ago
The value of a quadrantal bearing lies between 0' to 90'.

Quadrantal bearings are obtained by the surveyor's compass.
Urmi Maity said:   8 years ago
In this question, bearing is taken at QB system. Between fore and back bearing the difference is 180'. In QB system certain if we add (when the angle is <90) or subtract 180(when the angle is >90) from a certain angle then the resultant angle can find out by changing N to S and E to W.
Rohan said:   8 years ago
Yes, right @Nilesh.
Kaushal said:   8 years ago
Correct @Nilesh.
Bilash Biswas said:   8 years ago
I agree with you @Urmi.
Akash said:   7 years ago
Yes correct @Nilesh.
Sai said:   7 years ago
Qudratical bearing system is also known as reduced bearing system.
Saugat Oli said:   7 years ago
Yes, right @Nilesh.
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