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ch2-1

Total questions: 15

Worksheet time: 23mins

Name
Class
Date
1.

The water table represents the height to which water rises in a piezometer due to pressure in a confined aquifer

a)

true

b)

false

2.

The altitude z is the horizontal position of a point measured from a chosen reference level.

a)

true

b)

false

3.

The hydraulic head is the total energy of groundwater and is defined as the sum of pressure head and elevation head.

a)

true

b)

false

4.

Water pressure is equal to the height of the water column above a point.

a)

true

b)

false

5.

the water pressure is proportional to the density of water, gravity, and the height of the water column.

a)

true

b)

false

6.

water pressure unit is:

a)

Pa

b)

m/s

7.

which one representing total pressure?

a)

ρ.g.h

b)

ρ.g.H

8.

The velocity of water depends on the elevation gradient

a)

true

b)

false

9.

The difference between the level of water in the reservoir will create flow.

a)

true

b)

false

10.

the longer distance in porous media there is, the higher velocity we have

a)

true

b)

false

11.

hydraulic conductivity is property of water.

a)

true

b)

false

12.

which one is correct?

a)

q= KΔHΔxK\frac{\Delta H}{\Delta x}

b)

q= KΔxΔHK\frac{\Delta x}{\Delta H}

13.

what is the unit of Darcy velocity?

a)

m/s

b)

Pa/s

14.

which one is correct?

a)

q= - K ΔPρg Δx\frac{K\ \Delta P}{\rho g\ \Delta x}

b)

q= - Δx ΔPK ρg\frac{\Delta x\ \Delta P}{K\ \rho g}

15.

Hydraulic conductivity is a quantity which expresses the ability of an aquifer to allow a fluid to pass under the effect of a pressure difference.

a)

true

b)

false