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

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.

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.

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: There is change in the slope of double-mass curve of the watershed.
Reason R: Streamflow has been changed due to watershed development activities.
In light of the above statements, choose the most appropriate answer from the options given below.

Which of the following is not an objective of watershed management programme?

Given below are some of the facts related to watershed.
A. In small watersheds overland flow is the chief contributor to the peak flow.
B. In small watersheds peak flows are influenced by channel characteristics.
C. Each watershed is an independent hydrological unit.
D. People's participation is the key to the success of any watershed programme.
E. Watershed management should be done on top-down approach.
Choose the correct answer from the options given below.

Shaft horse power is always

When there is direct drive from the engine or electric motor to the pump, then at what drive efficiency the brake horse power is equal to shaft horse power

Irrigation water pricing of canal water in most states is based on

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

Given below are two statements
Statement I: Auger hole method is used to measure the hydraulic conductivity of soils above the water table
Statement II: Inverse auger hole method is used to measure the hydraulic conductivity of soils above the water table
In the light of the above statements, choose the most appropriate answer from the options given below

Given below are the two statements.
Statement I: Maps of soils, contours, slopes, present land uses, proposed land uses, proposed conservation structures, cropping patterns, and other such factors are bare pre-requisites for planning and developing any watershed management program
Statement II: Benchmark surveying and participatory rural appraisal surveying are two important exercises to be done before the initiation of a watershed project
In light of the above statements, choose the most appropriate answer from the options given below

Given below are the two statements.
Statement I: Most dug wells located in dry and hard rock areas, have discontinuous water tables
Statement II: Pumping tests in dug wells involve observation of rates of depletion as well as recuperation of water level during pumping period and also after stoppage of pumping (till water level in well gets sizably recovered)
In light of the above statements, choose the most appropriate answer from the options given below

Hydraulic radius in the Manning's equation is given as

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

Given below are the two statements.
Statement I: Hydraulic roughness (n) for flows in natural channels can be easily estimated by adopting Manning's equation, which is given as \(n = (1/v) \cdot R^{2/3 \cdot S^{1/2}\) (\(v = \text{velocity}, R = \text{hydraulic radius}, S = \text{slope}\)).
Statement II: Manning's roughness coefficient (n) does not have any dimension, i.e. it is purely dimensionless.
In light of the above statements, choose the most appropriate answer from the options given below}

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