Worksheets01/01/2026 AE
Total questions: 10
Worksheet time: 5mins
Superelevation is not fully relied upon at design speed mainly because:
Vehicles may exceed design speed
Friction coefficient varies with speed
Mixed traffic includes slow-moving vehicles
Superelevation construction is expensive
Why is parabolic camber preferred on high-speed roads?
It minimizes construction cost
It gives uniform drainage velocity
It avoids sudden slope change at crown
It increases pavement life
If a horizontal curve radius is increased while keeping speed constant, the relative importance of friction compared to superelevation:
Increases
Decreases
Remains unchanged
Becomes zero
The main reason for limiting superelevation to 7% in plain terrain is:
Drainage considerations
Skidding of fast vehicles
Overturning of slow vehicles
Construction convenience
A road curve is designed using maximum allowable e and f. This condition corresponds to:
Economic design
Equilibrium condition
Minimum radius condition
Comfort-based design
Which statement best explains why superelevation alone cannot ensure safety?
Friction varies with temperature
Vehicles do not always maintain design speed
Superelevation acts vertically
Friction is unreliable
If a vehicle negotiates a curve at speed lower than equilibrium speed, the tendency is to:
Skid outward
Overturn outward
Slip inward
Remain unaffected
Why is superelevation sometimes not provided on urban curves?
Traffic speed is high
Right-of-way is limited
Drainage becomes difficult
Friction demand is excessive
Which condition is most critical for designing lateral friction factor?
Maximum speed
Wet pavement condition
Heavy axle load
Steep gradient
Assertion (A): Maximum superelevation is restricted to 7% in plain terrain. Reason (R): Excessive superelevation increases centrifugal force on fast vehicles.
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A is false but R is true
