List of top Water Science and Technology Questions on Irrigation Engineering asked in ICAR AIEEA (PG)

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:

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:

Given below are two statements:
Statement I: Precipitation denotes all forms of water that reach the earth from the atmosphere.
Statement II: The magnitude of precipitation does not vary with time and space.
In light of the above statements, choose the most appropriate answer from the options given below.

Match List I with List II

Choose the correct answer from the options given below:

Which of the following tests is NOT performed to test the quality of clay/concrete tiles?

Derivation of Hooghoudt's equation assumes

The drainage coefficient of an area is 3.6 cm/day. What would be the discharge in \(\text{m}^3\text{/s}\) from an area of 60 ha?

Random layout of drainage system is used in

Construction of a subsurface drainage system should begin from

Interceptor drains are used to intercept flow from

As the value of specific speed of centrifugal pump increases, the pump type changes from

While constructing a lysimeter, what are the factors on which it depends
A. The heat advection through walls is to be kept minimum by using circular tanks
B. To maintain a moisture gradient representative of the surroundings, adequate drainage facilities must be provided
C. The heat advection through walls should be maximum by using rectangular tanks
D. No need to maintain moisture gradient in lysimeter
Choose the correct answer from the options given below:

The amount of energy required to move the water into the eye of an impeller is called as

The pump's efficiency is at its peak when the specific speed values range from

Given below are the two statements.
Statement I: Triangular weirs do not have any element or effects of weir length.
Statement II: Triangular weirs are the best option of flow stage measurements when the discharges or flow depths are relatively very high.
In light of the above statements, choose the most appropriate answer from the options given below

Ten sprinklers are spaced equally at 10 meters on a lateral. The laterals are spaced 1000 cm on the main line. The recommended fertilizer dose is 120 kg/ha. The amount of fertilizer to be applied at each setting is

Reference crop evapotranspiration (\(\text{ET}_0\)) is dependent on

Lysimeter measures

Water requirement of a crop includes

During agricultural water balances, the quantitative relativity of values for 'Consumptive Use (CU)' and 'Evapo-Transpiration (ET)' could be accurately expressed by which one of the following statements?

Irrigation scheduling for a 1 ha rice field is planned in such a way that the amount of irrigation to be provided per day is equal to the amount of ET/day. On a day if 1 cm of ET was observed, how much of water is to be used for irrigation on that day?

When 220g of core shaped fresh soil with 5 cm length and 6 cm diameter lost 20g on drying, what is its bulk density?

Smectite mineral colloid is

The extent of distribution of acid soils in various states is in the order of