Module 3: Pavement Design

Lecture 21: Pavement materials:Soil

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Problems

1. The load value on standard crushed stone for 2.5mm penetration in CBR test is
   1. 1370kg
   2. 1730 kg
   3. 2055kg
   4. 1500kg
2. Modulus of subgrade reaction is
   1. $K=\frac{P}{2.15}kg/cm^2/cm$
   2. $K=\frac{P}{0.125}kg/cm^2/cm$

   3. $K=\frac{P^2}{2.15}kg/cm^2/cm$

   4. $K=\frac{P}{2.5}kg/cm^2/cm$