Civil Engineering - Surveying - Discussion
Discussion Forum : 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
Discussion:
18 comments Page 1 of 2.
Kkvk said:
6 years ago
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".
(5)
Kcube said:
6 years ago
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.
(2)
Suhas said:
9 years ago
New bearing = previous bearing + or - deflection.
Hear deflection is positive so consider +.
34° 30’ - 52° 45’ = deflection.
Deflection is 18° 15’ L.
Hear deflection is positive so consider +.
34° 30’ - 52° 45’ = deflection.
Deflection is 18° 15’ L.
Vim said:
5 years ago
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.
So angle = 232°45' - 34°30'=198°15'.
Deflection angle= 180 - 198°15'= - 18°15' so -ve sign show the left.
(14)
Badonbok said:
3 years ago
B.B = F. B+180.
= 52 45'+180.
= 232 45'.
Reflection.
=fb next line - B. B.
=34 30'- 232 45'.
= - 198 15' + 180.
= - 18 15'.
= 52 45'+180.
= 232 45'.
Reflection.
=fb next line - B. B.
=34 30'- 232 45'.
= - 198 15' + 180.
= - 18 15'.
(8)
Nar Bahaduroli said:
4 years ago
Deflection;
= FB of next line - BB of previous line.
= 34 30'-(52 45'+180)+360,
= 161 45',
= 180-161 45' = 18° 15'.
= FB of next line - BB of previous line.
= 34 30'-(52 45'+180)+360,
= 161 45',
= 180-161 45' = 18° 15'.
(4)
Tilesh Lohar said:
4 years ago
Deflection
= FB of next line - BB of previous line.
= 34 30'-(52 45'+180)+360,
= 161 45',
= 180-161 45' = 18 15'.
= FB of next line - BB of previous line.
= 34 30'-(52 45'+180)+360,
= 161 45',
= 180-161 45' = 18 15'.
Kashi ram said:
9 years ago
Deflection angle less than 180 degrees. It must be left.
Ppkk said:
6 years ago
@Kkvk has logically explained it. Thumbs up.
Jay said:
7 years ago
How do we know it is left or right?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers