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Test: Well Hydraulics


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8 Questions MCQ Test Foundation Engineering | Test: Well Hydraulics

Test: Well Hydraulics for Civil Engineering (CE) 2023 is part of Foundation Engineering preparation. The Test: Well Hydraulics questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Well Hydraulics MCQs are made for Civil Engineering (CE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Well Hydraulics below.
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Test: Well Hydraulics - Question 1

The specific yield Sγ is given by _______

Detailed Solution for Test: Well Hydraulics - Question 1

The specific yield Sγ of an aquifer is defined as the ratio of volume of water drained by gravity Vwy to the total volume V. It is expressed as percentage. The specific yield Sγ is an indication of the water yielding capacity of an unconfined aquifer.

Test: Well Hydraulics - Question 2

The value of specific yield depends upon the shape of the pores.

Detailed Solution for Test: Well Hydraulics - Question 2

The specific yield Sγ is given by,
Sγ=(Vwy/V)*100. The specific yield Sγ is proportional to the volume of water drained. This implies that the value of specific yield depends upon the shape of the pores.

Test: Well Hydraulics - Question 3

The specific retention SR is given by _______

Detailed Solution for Test: Well Hydraulics - Question 3

The specific retention SR of an aquifer is defined as the ratio of volume of water retained VwR to the total volume V. It is expressed as percentage.

Test: Well Hydraulics - Question 4

The relation between porosity n, specific retention SR, specific yield Sγ is __________

Detailed Solution for Test: Well Hydraulics - Question 4

The porosity n, specific retention SR, specific yield Sγ is given by,
Sγ = (V/V)*100 and S= (VwR/V)*100
V= V+ VwR
But n = (Vw/V)*100
∴ n = SR+Sγ.

Test: Well Hydraulics - Question 5

In the storage coefficient, the unit change in the component of the head is measured in _________ to the surface.

Detailed Solution for Test: Well Hydraulics - Question 5

The storage coefficient is defined as the volume of water that an aquifer releases per unit surface area per unit change in the component of head normal to that surface.

Test: Well Hydraulics - Question 6

The coefficient of transmissibility is defined as the rate of flow of water through a horizontal strip of unit width and full saturation height under unit hydraulic gradient.

Detailed Solution for Test: Well Hydraulics - Question 6

For a fully saturated soil mass of unit width extending to depth infinity, the discharge through it is known as the coefficient of transmissibility when the hydraulic gradient is unity.

Test: Well Hydraulics - Question 7

If b is the aquifer thickness, the relationship between coefficient of transmissibility T and coefficient of permeability is ________

Detailed Solution for Test: Well Hydraulics - Question 7

The coefficient of transmissibility T equals the coefficient of permeability k multiplied by the aquifer thickness b. T = bk.

Test: Well Hydraulics - Question 8

The drawdown, corresponding to a steady discharge, are observed at a number of wells in _______

Detailed Solution for Test: Well Hydraulics - Question 8

The permeability can be determined by pumping out test. Pumping must continue at a uniform rate for a sufficient time to approach a steady state condition.

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