Q. Dupuit’s theory was later modified by _________

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Q. The parabolic depression in the aquifer is called as __________

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Q. In most of the confined aquifers, the value of storage coefficient ranges between __________

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Q. Which of the following is depicted by Dupuit’s theory?

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Q. The co-efficient of transmissibility (T) of an aquifer is given by which of the following equation?

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Q. According to Dupuit’s theory,the velocity of flow is proportional to__________

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Q. Dupuit’s theory states that, the Darcy’s law equation is not valid near_________

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Q. The specific yield Sγ is given by _______

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Q. The value of specific yield depends upon the shape of the pores.

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Q. The specific retention SR is given by _______

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Q. The relation between porosity n, specific retention SR, specific yield Sγ is __________

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Q. In the storage coefficient, the unit change in the component of the head is measured in _________ to the surface.

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Q. The coefficient of transmissibility is defined as the rate of flow of water through a horizontal strip of unit width and full saturation height under unit hydraulic gradient.

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Q. If b is the aquifer thickness, the relationship between coefficient of transmissibility T and coefficient of permeability is ________

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Q. The drawdown, corresponding to a steady discharge, are observed at a number of wells in _______

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Q. The formula for the pumping out test in an unconfined aquifer is given by _________

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Q. The permeability of the aquifer is ________ if the drawdown is 4m, discharge is 40litres/sec, thickness of confined aquifer is 30m and the radius of the well is 0.1m. The radius of influence is taken as 245m.

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Q. In the field determination, pumping must continue at a ________

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Q. The U.S. Bureau of Reclamation (Earth manual 1960) has devised two types of pumping-in tests _________

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Q. The formula for the open-end test is given by _________

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