Question

Match List-I with List-II

List-I	List-II
(A) Specific yield	(III) Ratio of volume of water a material retains after drainage by gravity to the total volume
(B) Coefficient of storage	(II) Volume of water the aquifer releases from or takes into storage per unit area of the aquifer
(C) Specific retention	(I) Volume of water released or stored per unit surface area of the aquifer per unit change in the component of head normal to that of the surface
(D) Transmissivity	(IV) Rate at which water gets transmitted through a unit width of the aquifer and extending through the full saturated thickness of the aquifer, under a hydraulic gradient

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (I), (B) - (III), (C) - (II), (D) - (IV)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

When matching aquifer terms, focus on their definitions and relationships to water movement and storage.

Answer 1

The Correct Option is A

Step 1: Understanding the aquifer terms.
- Specific yield is related to the volume of water that can be released or stored per unit area of the aquifer. - The coefficient of storage refers to the volume of water an aquifer can release or take into storage per unit are(A) - Specific retention is the ratio of the water retained by a material after gravity drainage. - Transmissivity refers to the rate at which water is transmitted through the aquifer.
Step 2: Analysis of options.
- (A) Specific yield: Matches with (I), the volume of water released or stored per unit surface area of the aquifer. - (B) Coefficient of storage: Matches with (II), the volume of water the aquifer releases or stores. - (C) Specific retention: Matches with (III), the ratio of water retained after drainage by gravity. - (D) Transmissivity: Matches with (IV), the rate at which water is transmitted through the aquifer.
Step 3: Conclusion.
Thus, the correct matching is (A) - (I), (B) - (II), (C) - (III), (D) - (IV).
Final Answer: \[ \boxed{1. (A) - (I), (B) - (II), (C) - (III), (D) - (IV)} \]