Question

Match List-I with List-II
\begin{tabular List-I & List-II
(A). Vertical drainage & (I). Percolation
(B). Stuffing box & (II). Turbine pump
(C). Diffuser & (III). Centrifugal pump
(D). Groundwater recharge & (IV). Tubewell

Choose the correct answer from the options given below:

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

Hint:

To easily solve this:
- Vertical drainage is always linked with tubewells.
- Groundwater recharge is linked with percolation.
These two matches are sufficient to confidently select the correct option.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
This matching task involves linking key terms in drainage, pump engineering, and ground water hydrology with their corresponding components or processes.
Detailed Explanation:
Let us analyze each term to find the correct pairings:
- (A) Vertical drainage: This involves lowering the water table in waterlogged lands by pumping groundwater out through a network of wells.
Thus, vertical drainage is accomplished using ______tubewells______.
This matches with (IV).
- (B) Stuffing box: This is a component of a ______centrifugal pump______ (specifically, the gland assembly) used to pack seal material around the rotating shaft, preventing water leakage from the casing.
This matches with (III).
- (C) Diffuser: A diffuser is a ring of stationary guide vanes surrounding the impeller in a ______vertical turbine pump______ (or diffuser-type centrifugal pump) designed to gradually expand the flow area and convert velocity energy into pressure head.
This matches with (II).
- (D) Groundwater recharge: This is the process where surface water moves downward into the aquifer, primarily occurring through ______percolation______ of rainwater or irrigation water through the soil profile.
This matches with (I).
Combining these matches, we get: (A) - (IV), (B) - (III), (C) - (II), (D) - (I).

Step 2: Final Answer:
The matching sequence corresponds to option (B).