Soil Science MCQ Questions and Answers for Practice

1. Which soil layer is made up of small lumps of rocks?

1. Bedrock
2. A-horizon
3. B-horizon
4. C-horizon

2. Which soil horizon contains humus?

1. Bedrock
2. A-Horizon
3. B-Horizon
4. C-horizon

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

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

4. What is the key component of soil that makes it more cohesive?

1. clay
2. silt
3. sand

5. Soil profile refers to an arrangement within a soil of

1. None of these
2. its horizontal layout
3. vertical layout
4. Size of soil particles

6. Which of the following soil type is loosely packed with large air spaces?

1. None of these
2. Sandy Soil
3. Clayey Soil
4. Loamy Soil

7. Lentils (masoor) and other pulses are grown in which of the following soil type?

1. None of these
2. Sandy Soil
3. Clayey Soil
4. Loamy Soil

8. Toys, pots, and statues are made up of which soil type?

1. None of these
2. Sandy Soil
3. Clayey Soil
4. Loamy Soil

9. Which topsoil is best suited for growing plants

1. None of these
2. Sandy soil
3. Loamy Soil
4. Clayey Soil

10. Soil formation is a

1. none of these
2. slow process
3. fast process
4. rapid process

11. Soil that is filled with water is termed ?

1. soluble
2. saturated
3. hydrated

12. What is another name for the mixed media test?

1. the pickle jar test
2. the olive jar test
3. the mason jar test

13. Which type of manual test is performed on a sample that is the size of a small plate?

1. the plasticity test
2. the dry strength test
3. the thumb penetration test

14. Which type of soil is the least stable?

1. Type A
2. Type B
3. Type C

15. Which type of soil has an unconfined compressive strength of .5 to 1.5 tons per square foot?

1. Type A
2. Type B
3. Type C