Highway Engineering
The critical combination of stresses for corner region in cement concrete roads is

Load stress + warping stress + frictional stress
Load stress + warping stress
Load stress + warping stress frictional stress
Load stress + frictional stress

ANSWER DOWNLOAD EXAMIANS APP

Highway Engineering
A traffic rotary is justified where

space is limited and costly
when traffic volume is less than 500 vehicles per hour
when traffic volume is more than 5000 vehicles per hour
number of intersecting roads is between 4 and 7

ANSWER DOWNLOAD EXAMIANS APP