Civil Engineering - Highway Engineering - Discussion
Discussion Forum : Highway Engineering - Section 1 (Q.No. 12)
12.
Pick up the incorrect statement from the following. The super-elevation on roads is
Discussion:
57 comments Page 2 of 6.
ANJAN said:
7 years ago
e+f = (0.278V)'2/9.8R.
So, option A is correct.
So, option A is correct.
(1)
JP Mahanta said:
6 years ago
Super elevation doesn't depends on road width, The E value (height of outer edge of road at super-elevation) depends upon e (rate of super-elevation).
(1)
Dr. ANUJ said:
5 years ago
For the total amount of superelevation, A, C, and D are correct.
So, incorrect can only be B as it is proportional to the square of the speed and not the speed only.
So, incorrect can only be B as it is proportional to the square of the speed and not the speed only.
(1)
Dinesh Sinha said:
5 years ago
Option A will be the answer.
Because, super elevation (e) = tan(theta)= Tangent/Base.
So, if base ie. The width will increase then Tangent ie. The rise of the outer edge will be increased to maintain as tan (theta). After that theta (angle of inclination) will be the same.
So, e= tan theta dependable on theta and not dependable on the width
Because, super elevation (e) = tan(theta)= Tangent/Base.
So, if base ie. The width will increase then Tangent ie. The rise of the outer edge will be increased to maintain as tan (theta). After that theta (angle of inclination) will be the same.
So, e= tan theta dependable on theta and not dependable on the width
(1)
Khelan banjare said:
5 years ago
B is the right option.
Agree @Anuj statement.
Agree @Anuj statement.
(1)
Srikanth IIITBasar said:
1 decade ago
Actually it is not directly proportional to width of pavement. Because,
Superelevation (e) = tan (tita) = sin (tita) = opp side /hyp= E/ width of pavement.
Superelevation (e) = tan (tita) = sin (tita) = opp side /hyp= E/ width of pavement.
(1)
SANTOSH kumar said:
8 years ago
e=V2/gr.
So, I think all option is true. But, e is directly proportional to the square of the velocity of the vehicle.
So, I think all option is true. But, e is directly proportional to the square of the velocity of the vehicle.
Rupam said:
9 years ago
Please, anyone explain me how's answer B?
Srinu said:
9 years ago
e=v2/gR,
So answer A is correct because question is asking incorrect statement, but superelevation is directly proportional to the square of velocity and inversely proportional to acceleration due to gravity and radius of curvature.
So answer A is correct because question is asking incorrect statement, but superelevation is directly proportional to the square of velocity and inversely proportional to acceleration due to gravity and radius of curvature.
Misganaw said:
9 years ago
Actually, incorrect answer is opt A because when the width is extra large we need not provide super elevation and when the width is narrow we should increase super elevation to provide safe passage of vehicles.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers