FG PRACTICE EXAM #2
1. Which of the following soil types is most appropriate as roadbed subgrade?-
Answer GP
2. GP
Answer POORLY GRADED GRAVEL
3. SP
Answer Poorly graded sand
4. SC
Answer clayey sand
5. MH
Answer Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts
6. RQD
Answer Rock Quality Designation
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,7. RDQ is determined by
Answer taking the total length of NX core pieces >4"/ total length drilled
8. NX core diameterAnswer 54 mm
9. Horizontal drains are appropriate forAnswer stabilzation of a hillslope
10. The geologic hazard which could cause catastrophic damage to residential
development built to current building codes isAnswer debris flow
11. What type of soil sampler would you use to obtain an undisturbed sample of very
stiff clay?Answer Pitcher barrel sampler
12. Bulk specific gravity, LA abrasion, sulfate, crushing, freeze-thaw, and mineral hardness
are all tests to establishAnswer aggregate suitability
13. What signal is the most important for seismic refraction profiles?
Answer the first arrival at each geophone
14. When drilling through a series of soil materials with dissimilar drilling char-
acteristics the best way to determine the precise depth of a lithologic change is
toAnswer observe drill rig noises or other actions
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, 15. The process of mixing a containment and groundwater so that the contam- inant
is diluted is calledAnswer dispersion
16. Which of the following minerals is the least stable during the chemical
weathering process in a temperate climate?
Answer olivine
17. Which soil type is best for dam embankment shells?
Answer GW
18. Characteristics of rocks which influence compressive strength include
Answer all of the above
19. What conditions are the most challenging for tunnel boring machines and
decrease the penetration rate the most?
Answer When RQD is high and uniaxial compressive strength is high
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1. Which of the following soil types is most appropriate as roadbed subgrade?-
Answer GP
2. GP
Answer POORLY GRADED GRAVEL
3. SP
Answer Poorly graded sand
4. SC
Answer clayey sand
5. MH
Answer Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts
6. RQD
Answer Rock Quality Designation
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17
,7. RDQ is determined by
Answer taking the total length of NX core pieces >4"/ total length drilled
8. NX core diameterAnswer 54 mm
9. Horizontal drains are appropriate forAnswer stabilzation of a hillslope
10. The geologic hazard which could cause catastrophic damage to residential
development built to current building codes isAnswer debris flow
11. What type of soil sampler would you use to obtain an undisturbed sample of very
stiff clay?Answer Pitcher barrel sampler
12. Bulk specific gravity, LA abrasion, sulfate, crushing, freeze-thaw, and mineral hardness
are all tests to establishAnswer aggregate suitability
13. What signal is the most important for seismic refraction profiles?
Answer the first arrival at each geophone
14. When drilling through a series of soil materials with dissimilar drilling char-
acteristics the best way to determine the precise depth of a lithologic change is
toAnswer observe drill rig noises or other actions
2/
17
, 15. The process of mixing a containment and groundwater so that the contam- inant
is diluted is calledAnswer dispersion
16. Which of the following minerals is the least stable during the chemical
weathering process in a temperate climate?
Answer olivine
17. Which soil type is best for dam embankment shells?
Answer GW
18. Characteristics of rocks which influence compressive strength include
Answer all of the above
19. What conditions are the most challenging for tunnel boring machines and
decrease the penetration rate the most?
Answer When RQD is high and uniaxial compressive strength is high
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17
