How many factors contributing to the flexural stress of a pavement?

If the flexural strength of a pavement is 45 and it’s stress is 40 then factor of safety is ______

The ratio of the radius r/a=0 represents _________

The spacing between construction joints in rigid pavement is?

In India the flexible pavement is designed as per ______

What is the most commonly used overlay?

The spacing of joint depends on ______

Rough and uneven roads increase ______