Soil Science Multiple Choice Questions and Answers

21. You should never take samples of soil to test from a trench wall.

1. 1

22. Type B soils may be cohesive or non-cohesive.

1. 1

23. When using a pocket penetrometer or shear vane to measure soil strength, how many samples should you test?

1. 2
2. 6
3. 12

24. An average cave-in of five yards of soil will weigh how many pounds.

1. 1350
2. 5000
3. 13500

25. In addition to the rock particles, the soil contains

1. air and water
2. water and plants
3. minerals, organic matter, air and water
4. water, air and plants

26. 1. The rotting dead matter in the soil is called ...............

1. Humus
2. Salt
3. Sugar
4. Protein

27. Breaking down of rocks by the action of wind and climate is called ...............

1. Weathering
2. Soil Vegetation
3. Cultivating
4. Percolation

28. The removal of land surface by water, wind or ice is known as .......................

1. Erosion
2. Weathering
3. Percolation
4. Retention

29. The soil containing the greater portion of big particles is called .................

1. Sandy soil
2. Loamy soil
3. Clayey soil
4. Bricks

30. The soil containing a greater portion of fine particles is called ...............

1. Sandy Soil
2. Loamy soil
3. Clayey Soil
4. Bricks