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Hydrology & Irrigation

Properties of Aquifer

Volume of wat...

Question

Volume of water given by unit area of confined aquifer when Piezometric surface falls by unity is called.

A

Specific yield

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B

Specific storage

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C

Specific retention

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D

Storativity

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Solution

The correct option is D Storativity
Storativity or storage coefficient is defined as volume of water given by unit plan area of aquifer when Piezometric surface falls by unity.

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Similar questions

Q. Match List-I with List-II and select the correct answer using the codes given below the lists:
List - I
A. Specified yield
B. Specific capacity
C. Specific retention
D. Specific storage

List-II
1. Volume of water retained per unit volume of aquifer
2. Volume of water drained by gravity per unit volume of aquifer
3. Difference of porosity and specific storage
4. Well yield per unit drawdown
5. Volume of water released from unit volume of aquifer for unit decline in piezometric head

Q. An unconfined aquifer of porosity 35%, permeability 40 m/day and specific yield of 0.15 has an area of

100 {km}^{2}

. If the water table falls uniformly throughout the aquifer area by 0.2 m during a drought, the volume of water lost from storage is ________.

Q. An unconfined aquifer of porosity 30% permeability 35m/day and specific yield of 0.20 has an area of

100 {km}^{2}

. If the water table falls by 0.25 m during a drought, the volume of water lost from storage, in million cubic metres, is

Q. The surface joining the static levels in several non-pumping wells penetrating a continuous confined aquifer represents

Q. An aquifer confined at top and bottom by impermeable layers is stratified into three layers as follows:

\begin{matrix} Layer & Thickness & Permeability (m) & (m/day) Top layer & 4 & 30 Middle layer & 2 & 10 Bottom layer & 6 & 20 \end{matrix}

The transmissivity (

m^{2}

/day) of the aquifer is

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