Civil Experiences Best Education Blog

Join WhatsApp groups and get 100% Free product coupon/Week and many more... Join the largest community now.

Join WhatsApp Group
If you don't join, then you're missing something big.

What is the hydraulic conductivity of the aquifer

Rate this post

Civil UPSC ESE Exam Solution 2021

UPSC ESE Exam Solution 2021 for Civil Engineering UPSC ESE 2021 GS Paper 1 download exam paper from telegram https://telegram.me/civil_experiences

In a groundwater field test, a tracer took 8 hours to travel between two observation wells which are 56 m apart. The difference in water table elevations in these wells was 0.70 m. The volume of the void of the aquifer is 30% of the total volume of the aquifer. What is the hydraulic conductivity of the aquifer, if the dynamic viscosity of water is 0.995 × 10-3 Ns/m2?




ANSWER= [A] 4.664 cm/s

Detailed Solution for Civil Engineering Exam

The tracer records the actual velocity of water

Vact = (56 * 100)/(8 * 60 * 60) = 60/36 cm/sec

Discharge Velocity, V = (n * Vact)

where,

n = Porosity = (Volume of voids/Total volume)

n = 0.30 (given)

V = (0.30* (7/36)) = 7/120 cm/sec

Hydraulic gradient (i) = [0.7/56] = 1.25 * 10-2

Coefficient of permeability or hydraulic

conductivity of aquifer (k) = (V/i)

k = 7/(120 * 1.25 * 10-2)

k = 14/3 cm/sec = 4.67 cm/sec

Also ReadCivil Engineering Competitive Exam Questions & Solution
Civil Experience
Author Aakash Dudhat

It is my pleasure to welcome you to civilexperiences.com, a website created and managed by Dudhat Aakash. In addition to having a Bachelor's degree in Civil Engineering

Leave a Comment

Join Our WhatsApp Group!