Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 5 (Q.No. 26)
26.
In an artesian acquifer, the draw downs in two observation wells at distances 100 m, and 200 m were found same after one hour and x hours respectively. The value of x, is
2 hours
4 hours
9 hours
16 hours.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
6 comments Page 1 of 1.

Anonymous said:   2 years ago
u = r²S/(4tT) => Theis equation.
(1)

Netha said:   6 years ago
It's square bro @Arvind.

Arvind said:   7 years ago
Which one is correct?

t2/t1=2(r2/r1) or t2/t1=(r2/r1)^2.
(1)

Dhanu said:   8 years ago
(t2/t1) = (r2/r1)^2,
(t2/1) = (200/100)^2,
t2 = 4 hours.
(1)

Ouhood said:   8 years ago
(t2/t1) = (r2/r1)2,
(t2/1) = (200/100)2,
t2 = 4 hours.
(1)

Shashank said:   10 years ago
What formula is used?

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