Permeability And Capillarity Question Preview (ID: 56763)

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Compared to the model containing larger particles, the model containing smaller particles has

a) less permeability and greater porosity

b) greater porosity and greater capillarity

c) less permeability and greater capillarity

d) greater permeability and greater porosity

All of the particles in these four columns are classified as

a) clay

b) silt

c) sand

d) pebbles

The pebble-and-sand soil has greater capillarity than the pebble soil because the pebble and sand soil

a) is weathering more rapidly

b) is more loosely packed

c) has smaller pore spaces

d) has less surface area

Which column of particles retained the most water after the clamps were opened and the water was drained into the beakers?

a) A

b) B

c) C

d) D

What is the deepest zone into which water can be pulled by gravity?

a) aerated zone

b) capillary fringe

c) saturated zone

d) impermeable zone

Which surface soil type has the slowest permeability rate and is most likely to produce flooding?

a) pebbles

b) sand

c) silt

d) clay

Each tube is filled with water to the top of the sediments and the tube is covered with a fine screen. The tubes are then tipped upside down so the water can drain. In which tube would the sediment retain the most water?

a) A

b) B

c) C

d) D

In which sediments is the capillary action of water greatest?

a) silt and sand

b) sand and pebbles

c) pebbles and cobbles

d) cobbles and boulders

Results of this experiment lead to the conclusion that

a) capillarity is greater in soils with larger particles

b) capillarity is greater in soils with smaller particles

c) permeability is greater in soils with larger particles

d) permeability is greater in soils with smaller particles

Which statement best explains the observed change in the water content of the soil samples?

a) The permeability of B is greater than the permeability of A.

b) The porosity of B is greater than the porosity of A.

c) The capillarity of B is greater than the capillarity of A.

d) The surface runoff at B is greater than the surface runoff at A.

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