Civil Engineering - Surveying - Discussion

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

Answer: Option E

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'.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.