List of top Agricultural Engineering and Technology Questions on Ground Water Engineering - Aquifers

Which of the following statements regarding Hooghoudt's equation are correct?
(A). Gives the relation between the spacing of drains and the height of the water table.
(B). Darcy's law is valid for the flow.
(C). The soil is heterogenous.

Choose the correct answer from the options given below:

Consider the statement(s) given below :
(A). The porosity of a material is dependent upon the arrangement of the particles, shape of grains and degree of assortment.
(B). The rhombohedral arrangement gives the maximum porosity.
(C). Transmissivity is expressed as sq. metres per day.

Choose the correct answer from the options given below:

Which of the following statements regarding well discharge are true?
A. It increases with drawdown
B. It increases with well diameter
C. It is affected by diameter but not drawdown
D. It decreases with drawdown
Choose the correct answer from the options given below:

The normal annual rainfall of the stations A, B, C and D in a basin are 75, 80, 96 and 72 cm, respectively. In the year 2020, the station A was inoperative and th stations B, C and D recorded annual precipitations of 70, 72 and 63 cm, respectively. Estimate the rainfall at station A in that year.

Which possible combination of aquifers are encountered by deep wells depending on the hydro-geological characteristics of a particular area:
(A) A series of confined aquifers
(B) A series of semi confined aquifers
(C) A combination of confined and semi confined aquifers
(D) A confined aquifer underlain by a series of unconfined aquifers
(E) An unconfined aquifer underlain by a series of semi-confined aquifers
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): The soil moisture depletion method is usually employed to determine the consumptive use of unirrigated field crops grown on fairly uniform soils when the depth to the ground water is such that it will not influence the soil moisture fluctuation within the root zone.
Statement (II): The field experimental plots technique though satisfactory for computing seasonal water requirements, does not provide information on intermediate soil moisture condition, short term use, profile use, deep percolation losses and peak use rate of the crop.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): Well logging consists of recording the characteristic properties of the samples of sub surface materials obtained during the progress of test drilling.
Statement (II): Geophysical methods provide indirect evidence of the sub surface formations that indicates whether the formations may possibly be aquifers.
In light of the above statements, choose the most appropriate answer from the options given below:

The major factors affecting soil erosion are:
(A) Climatic factors
(B) Degree and length of slope
(C) Size and shape of watershed
(D) Depth of Soil
(E) Ground water level
Choose the correct answer from the options given below:

Match List-I with List-II regarding groundwater aquifers and their properties:

38. The metering mechanism most commonly used for drilling of wheat is

Assertion A: The distance from the centre of the well to the outer limit of the cone of depression is known as radius of influence.
Reason R: Radius of influence depends on the pumping rate, length of pumping period, aquifer characteristics, slope of the water table and recharge in the zone of influence of the well.
In light of the above statements, choose the most appropriate answer from the options given below:

Assertion A: Darcy's Law is used in studying groundwater flow in alluvial formations.
Reason R: The specific yield of clay soil is 15-30%, whereas, it is 1-10% for gravel.
In light of the above statements, choose the correct answer from the options given below:

Assertion A: Darcy's Law is used in studying groundwater flow in alluvial formations.
Reason R: The specific yield of clay soil is 15-30%, whereas, it is 1-10% for gravel.
In light of the above statements, choose the correct answer from the options given below:

Assertion A: The distance from the centre of the well to the outer limit of the cone of depression is known as radius of influence.
Reason R: Radius of influence depends on the pumping rate, length of pumping period, aquifer characteristics, slope of the water table and recharge in the zone of influence of the well.
In light of the above statements, choose the most appropriate answer from the options given below: