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Salinity and Water Logging Online Exam Quiz

Important questions about Salinity and Water Logging. Salinity and Water Logging MCQ questions with answers. Salinity and Water Logging exam questions and answers for students and interviews.

What type of system does the diagram represent?

Options

A : a. Drains

B : b. French Drain

C : c. Deep Surface Drain System

D : d. Random Field Drain System

A land is said to be water-logged when _______________

Options

A : a. the aeration is stopped in the root zone due to the rise in water content

B : b. there is a reduction in crop yield

C : c. there is an accumulation of alkali salts in the root zone of the crop

D : d. there is salinity in the soil

What is the pH range for strongly alkaline soils?

Options

A : a. 7.4 – 7.8

B : b. 7.9 – 8.4

C : c. 8.5 – 9.0

D : d. > 9

Presence of excessive moisture retards the bacterial activities affecting crop growth.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

The phenomenon of water-logging can be best understood with the help of a Hydrologic equation.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Swampy land is ________

Options

A : a. ill-aerated land

B : b. the land where cultivation operations are impossible

C : c. land having deposition of alkali salts in the root zone of the crops

D : d. saline land

Salinity increases the osmotic activity of the plants.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Which of the following is a remedial measure for water-logging?

Options

A : a. Controlling seepage from the canals

B : b. By lowering the F.S.L of the canals

C : c. Quick disposal of rainwater

D : d. Installation of lift irrigation systems

Which of the following factor do not contribute to water-logging?

Options

A : a. Inadequate drainage

B : b. Seepage from unlined canals

C : c. Frequent flooding

D : d. Excessive tapping of groundwater

Which one of the following is not a remedial measure for waterlogging?

Options

A : a. Good drainage for irrigated land

B : b. Conjunctive use of water in the basin

C : c. The lining of canals and watercourses

D : d. Contour bunding

Which factor depends upon the depressions of the terrain and causes water logging?

Options

A : a. Irregular Topography

B : b. Impervious Obstruction

C : c. Inadequate Surface Drainage

D : d. Excessive Rains

Which factor is concerned with the growth of weeds?

Options

A : a. Excessive Rains

B : b. Submergence due to Floods

C : c. Over and Intensive Irrigation

D : d. Seepage of Water through the Canals

Due to inadequate drainage which factor causes waterlogging with constant percolation?

Options

A : a. Over and Intensive Irrigation

B : b. Impervious Obstruction

C : c. Inadequate Surface Drainage

D : d. Flat Topography

What factor creates temporary and continuous waterlogging?

Options

A : a. Submergence due to Floods

B : b. Flat Topography

C : c. Impervious Obstruction

D : d. Excessive Rains

Which factor leads to waterlogging due to obstruction?

Options

A : a. Inadequate Natural Drainage

B : b. Flat Topography

C : c. Impervious Obstruction

D : d. Over and Intensive Irrigation

Which factor comes into play when less permeable substratum is present?

Options

A : a. Flat Topography

B : b. Impervious Obstruction

C : c. Excessive Rains

D : d. Inadequate Natural Drainage

When a canal is taken as an example what factor about it causes waterlogging?

Options

A : a. Seepage of Water from the High Lands

B : b. Seepage of Water through the Canals

C : c. Over and Intensive Irrigation

D : d. Excessive Rains

Which factor causing waterlogging suggests extensive irrigation?

Options

A : a. Impervious Obstruction

B : b. Excessive Rains

C : c. Over and Intensive Irrigation

D : d. Seepage of Water from High Lands

Seepage of water from the adjoining highlands causes waterlogging.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Waterlogging is the rise of water table.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

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