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 1 of 3.

Syed mohd bilal said: 1 decade ago

BB = FB + or - 180°.

Sandeep said: 10 years ago

For calculating back bearing BB = FB+-180. I Think A & B are correct. How could C?

NIlesh said: 10 years ago

It is quadrant bearing system not whole circle so for back bearing we just have to change the quadrant just opposite of given not sub or add 180.

Alaa kamal said: 10 years ago

Subtracting 180°, if the given bearing, is more than 180 that right.

Mukesh maurya said: 9 years ago

Ye, I agree with Nilesh.

Anonymous said: 9 years ago

Quadrant bearing is the use of N-S, E-W in identifying the direction. C is the correct answer.

Durgesh said: 9 years ago

Yes, C is the right answer.

Pooja said: 9 years ago

Quadrant bearing means taking direction with respect to N-S, E-W.

Anonymous said: 9 years ago

You are right @Nilesh.

Annie said: 9 years ago

Yes, you are right @Pooja.

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