Q. What is the volume of voids in a rock mass expressed in percentage of total volume of rock called?

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Q. Which types of rocks are highly porous?

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Q. High porosity is alone sufficient to ensure water yield.

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Q. What is the quantity of water that a unit volume of aquifer drains by gravity called?

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Q. The term which is collectively responsible, along with specific yield, for total porosity of an aquifer is __________

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Q. Which sedimentary rock is told to be the best kind of formation for groundwater?

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Q. The rock which shows great variation in water yielding capacity is __________

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Q. What is rated next to the gravels as water yielding materials?

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Q. The porosity range of limestone is __________

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Q. What are the qualities required for glacial deposits to make good aquifers?

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Q. Igneous rocks are intrusive in nature.

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Q. The igneous rock rich in cavities is __________

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Q. When can a surface become porous and permeable or water bearing?

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Q. The fractured and fissured metamorphic rock is similar in character to which igneous rock?

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Q. Metamorphic rocks that are inherently fractured and foliated may prove to be good aquifers.

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Q. Which of the following doesn’t control aquifer behaviour?

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Q. An aquifer can hold water _________ and the state of water is _________

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Q. Groundwater is a subordinate to surface water.

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Q. The quantity of water that can be withdrawn annually and also the rate at which this withdrawal could be made without adversely affecting the inventory of the aquifer is called __________

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Q. When an aquifer is used to artificially recharge by making it pass through an intervening layer, the aquifer acts as __________

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