1. Sandy soil is characterized by _______

 High plasticity

 High nutrient holding

 Rapid drainage and low water-holding capacity

 High water retention

2. Saturated hydraulic conductivity describes water flow under _______

 Frozen soil conditions

 Dry soil conditions

 Fully saturated pore conditions

 Unsaturated conditions

3. Which soil structure is most favorable for crop growth?

 Massive

 Columnar

 Granular

 Platy

4. ____________ soil fraction retains the most water

 Gravel

 Silt

 Clay

 Sand

5. Soil porosity is defined as _______

 Volume of pore space in soil

 Mass of soil per unit volume

 Soil density

 Soil water content

6. A well-structured loam soil typically exhibits total porosity in the range of _______

 50–60%

 30–40%

 10–20%

 70–80%

7. Which of the following is NOT a recognized soil structure type?

 Loamy

 Blocky

 Prismatic

 Granular

8. According to Darcy’s Law, water flow is proportional to _______

 Hydraulic gradient

 Soil color

 Soil pH

 Soil Temperature

9. Columnar structure differs from prismatic structure in that it has _______

 Flat tops

 No vertical cracks

 Finer texture

 Rounded, sodium-affected tops

10. Platy soil structure indicates _______

 Good aeration

 Compaction or restricted permeability

 High organic matter

 High infiltration

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