List of top Engineering Graphics Questions on Horizontal and vertical curves

On a two-lane highway, a horizontal curve of radius 300 m is provided. The design speed is 80 km/h.
If the longest wheelbase of vehicle expected on this highway is 7 m, then the extra widening required (in m) is .......... (round off to two decimal places).
Road A and Road B are joined by a circular horizontal curve of radius 200 m as shown in the figure. Road A and Road B are tangential to the curve at the points C and D, respectively. Had the curve not been there, straight roads A and B would have met at the point E. The distance from C to E is 92 m. The value of angle \( \theta \) (in degrees) is ........... (rounded off to 1 decimal place).
On a two-lane highway, a horizontal curve of radius 300 m is provided. The design speed is 80 km/h.
If the longest wheelbase of vehicle expected on this highway is 7 m, then the extra widening required (in m) is .......... (round off to two decimal places).
Road A and Road B are joined by a circular horizontal curve of radius 200 m as shown in the figure. Road A and Road B are tangential to the curve at the points C and D, respectively. Had the curve not been there, straight roads A and B would have met at the point E. The distance from C to E is 92 m. The value of angle \( \theta \) (in degrees) is ........... (rounded off to 1 decimal place).