List of top Water Science and Technology Questions

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Neem seed extract is used to coat urea for increasing nitrogen-use efficiency.
Reason R: Neem seed extract coating slows down the hydrolysis and nitrification of urea.
In light of the above statements, choose the correct answer from the options given below:

Which of the following ICAR-Institutes are located at Hyderabad, Telangana?
A. National Academy of Agricultural Research Management
B. Sugarcane Breeding Institute
C. Central Research Institute for Dryland Agriculture
D. Indian Institute of Maize Research
E. Indian Institute of Millets Research
Choose the most appropriate answer from the options given below:

Where the National Institute of Abiotic Stresses Management is located?

Given below are two statements
Statement I: Fish meal is a good source of animal protein.
Statement II: Soybean meal is a good source of vegetable protein.
In light of the above statements, choose the correct answer from the options given below:

Arrange these crops in increasing order of area under cultivation in India:
A. Wheat
B. Cotton
C. Potato
D. Rice
E. Oat
Choose the correct answer from the options given below:

Which of the following plant nutrients are secondary plant nutrients?
A. Zinc
B. Calcium
C. Potassium
D. Sulphur
E. Manganese
Choose the correct answer from the options given below:

Term 'Arrow' is related to which of the following crop?

Dugout ponds or excavated ponds are fed by:
A. Springs
B. Surface runoff
C. Wells
D. Groundwater wherever aquifers are available
E. Storage reservoirs
Choose the correct answer from the options given below:

The rate of seepage from an unlined pond depends upon:

Compute the volume of excavation required to construct an excavated pond with an average depth of 5.0 m, bottom width of 15 m and bottom length of 10 m. The top area is 1000 m² and mid area of the pond is 800 m².

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Eutrophication leads to increase in biological oxygen demand of water and increase the fish population in bottom water.
Reason R: Increase in algal growth in surface water due to inorganic contamination is called eutrophication.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Groundwater occurs in the zone of saturation below the land surface.
Reason R: Groundwater is in a dynamic state and move slowly.
In light of the above statements, choose the correct answer from the options given below:

The Khosla formula gives runoff as a function of:
A. Slope
B. Rainfall
C. Soil Texture
D. Temperature
E. Humidity
Choose the most appropriate answer from the options given below:

Given below are two statements
Statement I: Major irrigation projects are essentially groundwater projects.
Statement II: Major irrigation projects involve large scale storage work.
In light of the above statements, choose the correct answer from the options given below:

Given below are two statements:
Statement I: In Shejipali system, water is distributed according to a pre-determined date and time schedule according to the turn fixed for the individual farmer.
Statement II: The farmers at the head of the channel being served the first and those at tail end of the command area are served the last.
In the light of the above statements, choose the correct answer from the options given below:

In the National Water Policy (2002) the highest priority in allocation of water resources is given to:

Given below are two statements
Statement I: In major irrigation projects, all irrigation schemes have a culturable command area of 10,000 ha or more.
Statement II: Medium irrigation projects have a culturable command area less than 2,000 ha.
In light of the above statements, choose the correct answer from the options given below:

Given below are two statements
Statement I: Leaching of saline soils is done by adding organic materials such as farm yard manure, crop residues and green manuring.
Statement II: Reclamation of alkali soils is achieved by treating soils with chemical amendments like gypsum and sulphur.
In light of the above statements, choose the correct answer from the options given below:

The graph between intensity of precipitation and time is represented as:

Estimate the peak rate of runoff from a watershed of 25 ha, having 10 ha under cultivation (C = 0.5), 5 ha under forests (C = 0.4) and 10 ha under grass cover (C = 0.45). The intensity of rainfall is 18 cm/hr.

Which of the followings are the rules for construction and installation of weirs:
A. Weir should be installed in a straight line at right angle to the direction of flow
B. Velocity of approach of water to the weir should be maximum
C. Crest and sides of the edge should be sharp
D. Velocity of approach of water to the weir should be negligible
E. The head over the weir should be measured on the upstream side at a distance of at least 4 times the head of flow from the weir.
Choose the most appropriate answer from the options given below:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The extent of sodium hazard is increased in irrigated agricultural area.
Reason R: Carbonate and bicarbonate are present in irrigation water.
In light of the above statements, choose the correct answer from the options given below:

Arrange the following components of hydrograph in sequence:
A. Base flow
B. Rainfall occurrence
C. Rising limb
D. Recession limb
E. Crest segment
Choose the correct answer from the options given below:

Difficulty in measuring rainfall in hilly regions is due to:
Reason I: Terrain is large in slope differences over a few vertical meters.
Reason II: Rainfall in the hilly region is localized independent events.
In light of the above reasons, choose the most appropriate answer from the options given below.

Given below are two statements: one is labeled as Assertion A and the other is labeled as Reason R.
Assertion A: A low drainage density reflects good drainage conditions in the catchment.
Reason R: Poor conditions are observed in areas where soils are resistant to erosion.
In the light of the above statements, choose the most appropriate answer from the options given below.