Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 6 (Q.No. 2)
2.
If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum deflection angle to locate its junction point, is
Discussion:
15 comments Page 1 of 2.
John said:
2 years ago
The correct answer is option A.
Roy Basak said:
2 years ago
CORRECT ANSWER IS A - 1°43"08' -Cofirmed from textbook
Explanation:
Max Deflection angle = L^2/6RL (this is in radians),
So in degrees, it will be =L ^2/6RL [180/π],
In minutes it will be = 1800 [L^2/RL].
Thus applying this formula we get max Deflection angle = 1°43"08'.
(For those asking where the 573 in the above explanations came from its simply 180/π =573).
Explanation:
Max Deflection angle = L^2/6RL (this is in radians),
So in degrees, it will be =L ^2/6RL [180/π],
In minutes it will be = 1800 [L^2/RL].
Thus applying this formula we get max Deflection angle = 1°43"08'.
(For those asking where the 573 in the above explanations came from its simply 180/π =573).
Roy Basak said:
2 years ago
CORRECT ANSWER IS A - 1°43"08' -Cofirmed from textbook
Explanation:
Max Deflection angle = L^2/6RL (this is in radians),
So in degrees, it will be =L ^2/6RL [180/π],
In minutes it will be = 1800 [L^2/RL].
Thus applying this formula we get max Deflection angle = 1°43"08'.
(For those asking where the 573 in the above explanations came from its simply 180/π =573).
Explanation:
Max Deflection angle = L^2/6RL (this is in radians),
So in degrees, it will be =L ^2/6RL [180/π],
In minutes it will be = 1800 [L^2/RL].
Thus applying this formula we get max Deflection angle = 1°43"08'.
(For those asking where the 573 in the above explanations came from its simply 180/π =573).
Dawood khan said:
2 years ago
@Zeshan.
How come 573.25?
How come 573.25?
ER.MUSKAN said:
2 years ago
LENGTH OF CURVE= π * R * D/180.
(1)
Shivaraj Babar said:
3 years ago
((573*90)/(500*60))=1°43'08".
Adam basha said:
4 years ago
L2/6RL.
500^2/(6*500*90)*(180).
=1'43'7.14".
500^2/(6*500*90)*(180).
=1'43'7.14".
Karan said:
5 years ago
Here R=90 and L= 500 is given then how can this answer is possible?
Please explain the answer in detail.
Please explain the answer in detail.
Rajeshkumar said:
6 years ago
Option A is correct (L2/6RL) * 180/π.
Zeshan said:
6 years ago
The Maximum deflection angle of transition curve (in minutes)= (573.25*L^2)/(R*L).
Therefore = (573.25*90*90)/(500*90).
Answer = 103.18 minutes.
Convert to degrees = 1° 43' 18".
(1°= 60' ,1'= 60").
Therefore = (573.25*90*90)/(500*90).
Answer = 103.18 minutes.
Convert to degrees = 1° 43' 18".
(1°= 60' ,1'= 60").
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