The minimum moisture content at which a water drop if placed on a smooth surface of soil will not be absorbed immediately by the soil is called __________________?

Related Mcqs:

1. The field capacity is the amount of water retained by a saturated soil mass after being acted by gravity. The amount of water required to bring the soil moisture content of that soil up to field capacity is called__________________?

   A. Soil-moisture deficiency
   B. Field-moisture deficiency
   C. Equivalent-moisture deficiency
   D. a and b are correct

2. Readily available moisture is the % of moisture that is always easily available to plant and this moisture is called _________________?

   A. 70%
   B. 75%
   C. 80%
   D. 85%

3. The process of consolidation of stabilized earth work in canal or river embankments. In this process the soil is deposited in layers of specified thickness and at a particular moisture content is called __________________?

   A. Soil stabilization
   B. Densification
   C. Compaction
   D. All are correct

4. Water available in root zone of plants, is about 50% of soil moisture content. which is always available to the plants is called________________?

   A. Effective water
   B. Soil-moisture content
   C. Capillary water
   D. All are correct

5. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?

   A. Soil moisture
   B. Equivalent moisture
   C. Field moisture
   D. Available moisture

6. After rainfall the quantity of water that flows directly over the ground surface and join immediately to the river is called_________________?

   A. Surface runoff
   B. Sub-surface runoff
   C. Base flow
   D. True surface runoff

7. The law that states that the discharge of sub-soil water is directly proportional to the loss of head and the area of soil sample and inversely proportional to to the length of soil sample ___________________?

   A. Archimed’s principle
   B. Darcy’s law
   C. Permeability law
   D. Thiem’s law

8. The amount of moisture content present in the air, when it is expressed as weight per unit volume is called ________________?

   A. Humidity
   B. Absolute Humidity
   C. relative humidity
   D. All are correct

9. Water available above the top of root zone of plants is about 15% of soil moisture contents, is mostly not available to plants celled_________________?

   A. Capillary water
   B. Irrigation water
   C. Effective water
   D. Hygroscopic water

10. The angle between a head regulator and entrance of water, for smooth entry of water in a canal is kept as _________________?

    A. 90°
    B. 100°
    C. 110°
    D. 120°