Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 24 (Q.No. 23)
23.
Two different granular soils are placed in a permeameter tube and flow is allowed to take place under a constant total head. The total head and pressure head at point A in centimeters, are respectively.
Discussion:
3 comments Page 1 of 1.
Kashyap said:
7 years ago
Please Explain this.
(3)
Vicky said:
6 years ago
25cm for lower soil.
25 cm for upper soil.
Above 25 cm head.
Then answer is correct.
25 cm for upper soil.
Above 25 cm head.
Then answer is correct.
(3)
Subham said:
7 months ago
@All.
Here, in the diagram has little error in marking dimensions.
Upper soil=lower soil=25cm.
If you take the datum at the water table level at the top of the upper soil, then the datum head at pt. A= (-50)cm.
Then, pressure head at pt.
A is 25 + 25 + 25 = 75 cm.
So, total head at A = 75+(-50)= 25 cm.
Here, in the diagram has little error in marking dimensions.
Upper soil=lower soil=25cm.
If you take the datum at the water table level at the top of the upper soil, then the datum head at pt. A= (-50)cm.
Then, pressure head at pt.
A is 25 + 25 + 25 = 75 cm.
So, total head at A = 75+(-50)= 25 cm.
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