Please keep the answers simple. thank you 1 Compaction is the removal of Air or
ID: 1714786 • Letter: P
Question
Please keep the answers simple. thank you
1 Compaction is the removal of Air or Water?
6 What two types of soil samples are typically obtained during a site investigation?
7 What is the name of a pipe-shaped rod or tube with helical flanges that is drilled into the ground?
8 What type of in-situ test method has the units "blows per foot?"
9 In what solid classification system are fine-grained soils and coarse-grained soils separated by 50% passing the no. 200 sieve?
10 In the AASHTO Soil Classification System, granular materials are separated by silt-clay materials by what percent passing the no. 200 sieve?
11 In the USCS, what symbol is required if the percent passing the no. 200 sieve results in a value between 5 and 12%?
12 What symbol represents the depth of groundwater in a boring log?
13 What characteristic of clays is often used to classify them?
14 What two types of soil are clean, granular, and cohesionless?
15 What two types of soil can be described as soft or stiff?
19 What is a phase diagram?
20 What is moisture content, or water content?
21 What is dry density or dry unit weight?
24 What is a falling-head permeability test?
25 What is a constant-head permeability test?
26 Boussinesq’s equation is used for:
27 What is the primary assumption underlying the Rankine earth pressure theory?
28 The fluid pressure that develops in the void spaces of a saturated soil under hydrostatic conditions is known as
29 The body pressure developed at a point in a mass of soil due to the density or unit weight of the soil above that point that includes pore pressure from water in the soil but ignores any effect from air in the void spaces is known as:
30 The portion of the total stress supported by contact among the particles in a soil matrix is known as:
31 Normal consolidation of a soil is defined by:
32 Over consolidation of a soil is defined by:
33 What is the test that determines the combination of dry soil and moisture that will achieve the highest density for a soil?
34 Define Slope stability:
35 A graphic representation of the seepage of water or another fluid through a porous media typically below the surface of the ground is know as a:
36 A substructure designed to support a superstructure is know as:
37 The ultimate bearing capacity for a continuous footing or wall footing is provided by the equation known as:
38 The gradual compression of a layer of saturated clayey soil during which water is squeezed out of voids is known as:
39 An oversized footing that may lie under the entire area of a building, or be used under a tower to give resistance to overturning is known as:
40 A very large footing used to reduce differential settlement is known as:
41 The capacity of a pile to carry a vertical load is know as:
Explanation / Answer
1. compaction is the removal of air.
6. in site investigation we get disturbed and undisturbed soil samples.
7. Auger also known as auger stem.
8. Standard Penetration Test SPT.
9. In Unified Soil Classification System (USCS).
10. By greater than 35%.
11. A dual symbol as GW-GC.
12. A triangle pointing downward at the appropriate elevation represents this in a boring log.
13. Plasticity
14. Sand and Gravel.
15. Silt and Clay.
19. The diagram that shows the mass and olume of the three constituents of a soil (solids, air and water).
20. The ratio of mass of water to the mass of solids in given portion of soil sample.
21. the ration of dry solids to the total volume of the soil sample.
24. during this test , the fluid is made to flow through soil as the change in elevetion head is recorded.
25. during this test the fluid is made to flow through the soil with elevation of head kept at a steady level as the quantity of water leaving the soil is recorded.
26. to calculate the pressure distribution beneath footings with relatively small width.