Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > A fully saturate capillary zone of thickness ...
Start Learning for Free
A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?
- a)5 kN/m2
- b)-15 kN/m2
- c)-5 kN/m2
- d)15 kN/m2
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A fully saturate capillary zone of thickness 2 m exists above the wate...
Above the water table pore pressure will be negative
Pore pressure at 1.5 m above the WT
= - γwz = - 10 × 1.5 = -15 kN/m2.
Most Upvoted Answer
A fully saturate capillary zone of thickness 2 m exists above the wate...
Given:
Thickness of fully saturated capillary zone (zs) = 2 m
Pore water pressure at 1.5 m above water table (u) = water
To determine:
Pore water pressure at the water table (uw)
Solution:
The capillary zone is fully saturated, therefore, the pore water pressure at the top of capillary zone (u2) is atmospheric pressure (i.e., 0 kN/m2).
The hydrostatic pressure at the top of the capillary zone (z2) is given by:
P2 = γw z2
where γw is the unit weight of water and is equal to 9.81 kN/m3.
P2 = 9.81 × 2 = 19.62 kN/m2
The pore water pressure at the water table (uw) can be calculated using the following equation:
uw = u2 + γw (z2 - zs)
uw = 0 + 9.81 × (1.5 - 2)
uw = - 4.905 kN/m2
Negative sign indicates that the pore water pressure at the water table is negative (i.e., tensile or suction pressure). Therefore, option B is correct.
Answer: The pore water pressure at the water table is -15 kN/m2.
Thickness of fully saturated capillary zone (zs) = 2 m
Pore water pressure at 1.5 m above water table (u) = water
To determine:
Pore water pressure at the water table (uw)
Solution:
The capillary zone is fully saturated, therefore, the pore water pressure at the top of capillary zone (u2) is atmospheric pressure (i.e., 0 kN/m2).
The hydrostatic pressure at the top of the capillary zone (z2) is given by:
P2 = γw z2
where γw is the unit weight of water and is equal to 9.81 kN/m3.
P2 = 9.81 × 2 = 19.62 kN/m2
The pore water pressure at the water table (uw) can be calculated using the following equation:
uw = u2 + γw (z2 - zs)
uw = 0 + 9.81 × (1.5 - 2)
uw = - 4.905 kN/m2
Negative sign indicates that the pore water pressure at the water table is negative (i.e., tensile or suction pressure). Therefore, option B is correct.
Answer: The pore water pressure at the water table is -15 kN/m2.
Free Test
FREE
| Start Free Test |
Community Answer
A fully saturate capillary zone of thickness 2 m exists above the wate...
We have to find pore water pressure 1.5m above water table that means 0.5m below the surface...
So answer is
U= - (0.5 * gamma water) = - (0.5 *10) = - 5kn/m^2
So answer is
U= - (0.5 * gamma water) = - (0.5 *10) = - 5kn/m^2
Attention Civil Engineering (CE) Students!
To make sure you are not studying endlessly, EduRev has designed Civil Engineering (CE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Civil Engineering (CE).
|
Explore Courses for Civil Engineering (CE) exam
|
|
Similar Civil Engineering (CE) Doubts
Top Courses for Civil Engineering (CE)View all
A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer?
Question Description
A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer?.
A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer?.
Solutions for A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A fully saturate capillary zone of thickness 2 m exists above the water table in a fine silty sand deposit. Water is the pore water pressure at 1.5 m above the water table?a)5 kN/m2b)-15 kN/m2c)-5 kN/m2d)15 kN/m2Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
|
|
Explore Courses for Civil Engineering (CE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup