The water particles held in soil pores of root zone by _____________ against gravity and is known as capillary water?

Related Mcqs:

1. 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

2. 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

3. Water logging is the state of the soil where the water table brought ______________capacity or root zone of plants?

   A. Far from
   B. Within
   C. Below
   D. Near

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. 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

6. The process to dilute the available salts from root Zone by providing simply canal water is known as __________________?

   A. Reclamation
   B. Leaching
   C. Recultivation
   D. de-salting

7. In the initial stage of rainfall, when soil moisture available in the root zone is very low, the rate of infiltration ?

   A. Increases
   B. Reduces
   C. remain stagnant
   D. Normal

8. Specific gravity of a liquid is defined as the ratio of its specific weight to that of pure water and standard temperature and pressure. Therefore specific gravity is equal to ___________________?

   A. 1.0
   B. 1.2
   C. 1.5
   D. 2.0

9. Water storage efficiency in the root zone depends upon__________________?

   A. Porosity
   B. Fine particles of soil
   C. Coarse particles of soil
   D. Climatic conditions

10. 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