Q. Specific retention of groundwater is larger in coarse-grained soils.

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Q. Water wells excavated through confined aquifers are known as ______________

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Q. In case of a flowing well, the piezometric surface is always _________

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Q. The line joining the static water levels in several wells excavated through a confined aquifer is known as the _____________

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Q. The permeability of an aquifer (m/day) will ____________

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Q. The discharge per unit drawdown at a well is known as ___________

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Q. Coefficient of storage (A) has the dimensions of _____

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Q. The units of specific capacity of a well are _____

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Q. Specific yield for an unconfined aquifer is ________________

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Q. A perched aquifer is found within ____________

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Q. The specific capacity of a confined well under equilibrium condition and within the working limits of drawdown ______________

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Q. The standard specific capacity of a well is the well-discharge per unit of drawdown. This value of discharge should be obtained at ________

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Q. An example of aquitard stratum in the ground profile is a layer of ___________

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Q. An aquifer which is confined at its bottom but not at the top is called ___________

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Q. The clogging of well screens and consequent reduction in pump efficiency is indicated by _____________

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Q. The rate of water contribution to the well increases with the increase in the depression head.

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Q. The performance of a well is measured by its ________

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Q. The safe depression head for open wells is generally taken to be x times the critical depression head when x is ______

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Q. The yield of a well depends on ________________

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Q. Which type of open well is suitable when the sub-soil is formed of gravel or coarse sand deposits?

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