1.2. Laboratory Soil Specimen and Testing Procedure

Try these first

1. 1.

   What is the void ratio in soil mechanics?

   Hint

   Think about the structure of soil grains and the spaces in between.

2. 2.

   What does effective stress represent?

   Hint

   Consider how pore pressure affects soil strength.

3. 3.

   What defines the effective stress in soil?

   • Total Stress - Pore Pressure
   • Pore Pressure - Total Stress
   • Total Stress + Pore Pressure

   Hint

   Remember the equation for effective stress in soil mechanics.

4. 4.

   The virgin compression curve is also known as what?

   • True
   • False

   Hint

   Consider how soil compressibility is categorized.

5. 5.

   You have a soil sample exhibiting a significant hysteresis loop during loading and unloading tests. Analyze this behavior. What might it indicate about the soil's properties?

   Hint

   Think about soil structure and its role in hysteresis.

6. 6.

   If a soil specimen shows less compression on reloading compared to initial loading, what factors could explain this behavior?

   Hint

   Reflect on how soil characteristics affect its response to stress.