# Civil Engineering - Surveying - Discussion

### Discussion :: Surveying - Section 4 (Q.No.24)

24.

The bearings of two traverse legs AB and BC are N52° 45' E and N34° 30' E respectively. The deflection angle is

 [A]. 18° 15' E [B]. 18° 15' N [C]. 18° 15' W [D]. 18° 15' R [E]. 18° 15' L

Explanation:

No answer description available for this question.

 Shailendra said: (Feb 8, 2016) How its possible?

 Kashi Ram said: (Aug 16, 2016) Deflection angle less than 180 degrees. It must be left.

 Suhas said: (Sep 13, 2016) New bearing = previous bearing + or - deflection. Hear deflection is positive so consider +. 34° 30’ - 52° 45’ = deflection. Deflection is 18° 15’ L.

 Sili said: (Dec 26, 2017) What is L?

 Sonam Yeshay said: (Feb 27, 2018) Deflection angle is left side.

 Jay said: (Jun 15, 2018) How do we know it is left or right?

 Shubham V said: (Oct 21, 2018) What is the meaning of L here?

 Sai said: (Aug 30, 2019) Here L is Lattitude.

 Tushar said: (Sep 15, 2019) Here, What is L?

 Kcube said: (Oct 9, 2019) BC should be in the SE quadrant for the Deflection angle to be 18° 15' L------------L indicates angle measured from the prolongation of the AB leg to the BC leg in an Anti-clockwise direction.

 Kkvk said: (Jan 9, 2020) Deflection angle is measured from succeeding line to prolongation of preceding line in clock wise or anti clock wise direction. If it is in anti-clock wise direction it is "left-deflection angle", If it is in clock wise direction it is "right-deflection angle".

 Ppkk said: (Feb 13, 2020) @Kkvk has logically explained it. Thumbs up.

 Vim said: (Apr 25, 2020) Back bearing of AB =180 + 52°45'=232°45' So angle = 232°45' - 34°30'=198°15'. Deflection angle= 180 - 198°15'= - 18°15' so -ve sign show the left.

 Tilesh Lohar said: (May 9, 2021) Deflection = FB of next line - BB of previous line. = 34 30'-(52 45'+180)+360, = 161 45', = 180-161 45' = 18 15'.

 Priti Roy said: (May 27, 2021) Thanks for explaining the answer.

 Nar Bahaduroli said: (Oct 26, 2021) Deflection; = FB of next line - BB of previous line. = 34 30'-(52 45'+180)+360, = 161 45', = 180-161 45' = 18° 15'.