List of top Soil Science Questions on Drainage

Match List-I with List-II. List-I Process of water movement: A. Downward movement or entry of water into the soil surface, B. The movement of water through a column of soil, C. Downward and lateral movement of water into the soil, D. Movement of irrigation water from surface into and through the soil. List-II Terminology: I. Seepage, II. Water intake, III. Infiltration, IV. Percolation.

Match List-I with List-II. List-I Process of field drainage: A. The process of changing the natural topography so as to control the movement of water on to surface, B. Flat lands where there are only minor difference in field levels, C. The grade in the direction of drains can be \(0.05\) to \(0.5%\), D. Suitable for soils with poor conductivity with slopes not exceeding \(1.5%\). List-II Terminology of field drainage: I. Land forming, II. Land smoothing, III. Land grading, IV. Bedding system.

Given below are two statements: Assertion (A): The information that is essential for any drainage investigations are topographic maps, soil survey and geological report, well logs and water table fluctuations, irrigation and drainage maps, climatological and meteorological data and information regarding irrigation methods. Reason (R): The reconnaissance survey consists of moving around the area, inquiries from local people and to locate on the base map information about physical boundaries, cropping conditions, etc.

The downward and lateral movement of water into the soil is called:

The unit of drainage density is: