Highway Engineering
The shape of the camber, best suited for cement concrete pavements, is

parabolic
straight line
elliptical
combination of straight and parabolic

ANSWER DOWNLOAD EXAMIANS APP

Highway Engineering
When the speed of traffic flow becomes zero,then

traffic density becomes zero whereas traffic volume attains maximum value
traffic density and traffic volume both become zero
traffic density attains maximum value whereas traffic volume becomes zero
traffic density and traffic volume both attain maximum value

ANSWER DOWNLOAD EXAMIANS APP