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

Given below are two statements:
Statement I: A random variable that assume a infinite or a unaccountably infinite number of values is called continuous random variable.
Statement II: A random variable is called discrete if it has either a finite or a countable number of possible values.
In light of the above statements, choose the most appropriate answer:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The polynomial equation \(x(x+1) + 8 = (x+2) \times (x-2)\) is a linear equation.
Reason R: There is only one variable.
In light of the above statements, choose the correct answer:
A subset of the sample space associated with a random experiment, is called an
For mid values of 30, 38, 48, 57 and 66, the second class of distribution is
The range of given data 9, 13, 15, 17, 19, 21, 28, 8, 34 is
Power to be supplied by prime mover with 100 % drive efficiency:
A. Brake Horsepower = Shaft horsepower
B. Water horsepower = Shaft horsepower
C. Water horsepower/pump efficiency = Shaft horsepower
D. Input horsepower = Shaft horsepower
E. Horsepower = Shaft horsepower
Choose the correct 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 power of a pump which raises 100 kg of water in 10 sec to a height of 100 m is 10 KW
Reason R : The practical unit of power is horse power
In light of the above statements, choose the correct answer from the options given below:
Nodal agency of Pradhan Mantri Krishi Sinchai Yojana is
Given below are two statements:
Statement I: In pumping test, the water level in the well is depressed to an amount equal to the safe working head for the subsoil.
Statement II: In the recuperation test, the water level in the well is depressed by an amount less than the safe working head for the subsoil.
In light of the above statements, choose the correct answer from the options given below:
Optimum yield of a well is arrived at by conducting a “step drawdown test” in the well. Arrange the steps in sequence for conducting a "step drawdown test" from the below statements.
A. Bore is first pumped at a very low and constant discharge rate for a fixed period of time in such a manner that the water level stabilizes at a shallow depth.
B. The pump discharge is then increased to a medium rate of pumping so that water level falls further down but eventually stabilized at an intermediate depth.
C. The pump discharge is further increased higher so that the water level again stabilizes at a lower level further down.
D. When the discharge versus steady state drawdown of the different steps is plotted, a parabolic curve is obtained.
Choose the correct answer from the options given below:
A drainage canal discharges 0.2 cubic metres of water per second in a day and drains 250 hectares. Calculate the capacity required at the outlet end of the drainage ditch draining a watershed of 300 hectares.
In an area of 100 hectares, maize and wheat crops are grown which can tolerate 8 m mhos conductivity in the drainage water. Yearly consumptive use of crop is 200 cm and yearly rainfall is 100 cm. The conductivity of irrigation water is 2 m mhos. Calculate the water requirement for the year.
A hydraulic ram operates at a drive head of 3 m and a delivery head of 20 m. The flow through the drive pipe is 0.6 $\text{m}^3\text{/min}$ and the discharge at the outlet of the delivery pipe is 0.07 $\text{m}^3\text{/min}$. Compute the efficiency of the ram adopting Rankine's formula.
Given below are two statements:
Statement I: Volumetric method of pricing can be efficiently used in tubewell irrigation.
Statement II: Volumetric method of pricing is not in practice in India.
In light of the above statements, choose the most appropriate answer from the options given below:
Match List I with List II:
List I (Drainage)
A. Vertical drainage
B. Water absorption test
C. Inverse auger hole
D. Organic envelope material
E. To drain scattered depressions/potholes
List II (Drainage Situations)
I. Hydraulic conductivity
II. Coconut fibre
III. Random System
IV. Clay pipes
V. Shallow/deep tube wells
Choose the correct answer from the options given below:
Soil salinity adversely affects plant growth. Arrange the below statements in correct sequence for occurrence of soil salinity in irrigated fields..
A. When area is irrigated excessively over an extended period of time, the ground water level rises.
B. Salts which were orginally present in the irrigation water are thus concentrated on the land surface.
C. When it reaches a height which is equal to the capillary rise of moisture in the soil, the soil moisture is brought to the surface.
D. Soil moisture evaporates leaving the salts at the surface.
Choose the correct answer from the options given below:
Type of land requiring drainage:
A. Land having water table high
B. Water logging lands
C. Excessive moisture content below the field capacity
D. Humid regions having continuous high rainfall
Choose the correct answer from the options given below:
Match List I with List II

List I (Pump) & List II (Pumps Characteristics)
A. Specific speed & I. Large discharge
B. Axial flow impellers & II. Small discharge
C. Radial flow impellers & III. Vapour filled cavities
D. Cavitation & IV. Dimensional analysis
E. Shape of head discharge curve & V. Performance curve

Choose the correct answer from the options given below:
Match List I with List II

List I (Water lifting devices) & List II (Water lifting devices Situations)
A. Persian wheel & I. Unlined wells
B. Denkli & II. Lined wells
C. Churus & III. Depth of well is 12 to 20 m
D. Centrifugal pump & IV. Positive displacement pump
E. Hand Pump & V. Discharge varies directly as speed

Choose the correct 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: Increasing volumetric price causes substitution of surface water with groundwater.
Reason R: Area-based pricing method does not promote the use of groundwater.
In light of the above statements, choose the correct answer from the options given below
Objectives of irrigation water charging are
Hydraulic Ram is a water lifting device that uses the
The construction process of subsurface pipe drainage system is in which sequence?
A. Outlet construction
B. Grade control
C. Setting out alignments and levels
D. Excavating the trenches
E. Placing the envelopes
F. Placing the drain pipes
Choose the correct sequence from the options given below:
Given below are two statements
Statement I: Subsurface drainage increases the moisture available to the plants, because the root zone is deepened.
Statement II: Subsurface drainage decreases the volume of soil from which roots can take food.
In light of the above statements, choose the most appropriate answer from the options given below
Match List I with List II

List I (Crops) & List II (Associated pests/disease)
A. Rice & I. Karnal bunt
B. Chickpea & II. Brown plant hopper
C. Groundnut & III. Stem borer
D. Maize & IV. Pod borer
E. Wheat & V. White grub

Choose the correct answer from the options given below: