List of top Water Engineering and Management Questions on Ground water hydrology

Which of the following is not a property of a semi confined aquifer?

In ground water hydrology A. Dupuit equation are used for unconfined and confined aquifers B. Theim equation is used for unsteady state conditions C. Theim equation is used for steady state conditions D. Theim equation is used for steady state condition Choose the correct answer from the options given below:

Consider the following statement for groundwater flow
• The water in confined aquifers is having pressure greater than atmospheric pressure.
• The unconfined aquifer is also known as water table aquifer.
• The unconsolidated type of formation have secondary porosity.
• The perched aquifer is a type of unconfined aquifer.
• Hydraulic conductivity has the dimension of velocity. Choose the correct answer from the options given below:

A \(20 \, \text{cm}\) diameter well is penetrating a confined aquifer. The rate of discharge is \(0.2 \, \text{m}^3/\text{sec}\), the drawdowns at \(10 \, \text{m}\) and \(30 \, \text{m}\) distance from the well are observed to be \(3.5 \, \text{m}\) and \(2 \, \text{m}\) respectively. Determine hydraulic conductivity and transmissivity of aquifer.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The zone of aeration consists of three belts viz., (1) soil water belt (2) intermediate belt and (3) capillary fringe. Reason R: In the zone of saturation all the macropores are filled with air. In the light of the above statements, choose the most appropriate answer from the options given below
• Both A and R are correct and R is the correct explanation of A
• Both A and R are correct but R is NOT the correct explanation of A
• A is correct but R is not correct
• A is not correct but R is correct

Which of the following formations does not contain any groundwater?