Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 5 (Q.No. 48)
48.
Specific yield of a well is
quantity of water than can be drawn from the well
flow of water per unit time
total quantity of water available in the well
quantity of water per unit time per unit draw-down.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
9 comments Page 1 of 1.

Santosh Kumar said:   3 years ago
@Saqib.

You are right. The others are confusing well and aquifer definitions.

The correct answer is of course (D).
(2)

Saqib said:   4 years ago
The question asks specific yield of the well (& not aquifer).

Specific yield of AQUIFER = Ratio of water yielded under gravity & total volume of aquifer =Vw/Va.

It has no units. It's a ratio.

The Specific yield of WELL = specific capacity OF WELL = option D,
Unit is m3/sec/m2/m or in short per second. (1/sec).

Hence, discharge of well = sp. capacity x volume.

Anirban Roy said:   5 years ago
Absolutely correct. @Utkarsh.

The specific field is defined as the volume of water that can be drained under gravity per unit volume of the aquifer.

Narayan Ch. Saha said:   5 years ago
C is the correct answer.

Utkarsh said:   5 years ago
@All.

Option A should be the answer.
Option B represents the discharge.
Option C Represents water available in the well means porosity.
Option D represents Specific capacity.

Anirban said:   6 years ago
Option C is correct.

Option D is for Specific Capacity.

Sam said:   7 years ago
According to me, it is D.

Orai said:   7 years ago
The Correct answer is option D.

Chintu said:   8 years ago
Yield of well is the rate at which water percolates into the well under the safe maximum working head or critical depression head. It is expressed in m3/hr or It/min. The yield of open well can be determined by any one of the two methods, namely, pumping test and recuperation test.

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