Highway Engineering
If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be

greater than b/2h and also greater than coefficient of lateral friction
less than b/2h and greater than co-efficient of lateral friction
greater than b/2h and less than co-efficient of lateral friction
less than b/2h and also less than co-efficient of lateral friction

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Highway Engineering
Select the correct statement.

Minimum and maximum values of group index can be 0 and 20 respectively
All of these
More the value of group index, less thickness of pavement will be required
More the value of CBR, greater thickness of pavement will be required

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