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 3 of 6.
Srinu said:
8 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:
8 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.
Rudresh meena said:
8 years ago
A is correct because velocity of vehicle is directly proportional to super elevation.
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.
Swar said:
7 years ago
e=tan (θ) = opp/adj = h/b = central rise/width.
So super elevation is inversely proportional to width of pavement. But they have given as directly prop. So the answer is A.
So super elevation is inversely proportional to width of pavement. But they have given as directly prop. So the answer is A.
Pari.. said:
6 years ago
Super elevation is inversely proportional to the radius.
E!=e B where e is the super-elevation.
E!=e B where e is the super-elevation.
Benjifanai said:
6 years ago
Guys. Question is actually trick you. B is Right.
E=eB.
e=v*v/gR.
SO,
E=v*v*B/gR.
From the final equation.
E directly proportion to width, the square of the velocity and, inversely proportional to the g and R.
here, superelevation does not directly proportional to the velocity of vehicles, but the only square of the velocity.
SO, answer B IS RIGHT.
E=eB.
e=v*v/gR.
SO,
E=v*v*B/gR.
From the final equation.
E directly proportion to width, the square of the velocity and, inversely proportional to the g and R.
here, superelevation does not directly proportional to the velocity of vehicles, but the only square of the velocity.
SO, answer B IS RIGHT.
Anomie said:
5 years ago
e=v^2/Rg so directly proportional to the square of thè velocity.
Shiw Sanku shaw said:
5 years ago
How?
Deepain bhatta said:
2 weeks ago
I think Option A is the right answer cause the width does not affect the centrifugal force, so width is irrelevant, and for velocity is v2 is directly proportional, but here v2 is not given, we can say it is proportional, and g and R are indirectly proportional. So only the width has nothing to do.
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