ICC Soils Certification test Questions and
Correct Answers/ Latest Update / Already
Graded
well-graded, clean gravels; gravel-sand mixes
Ans: GW
Poorly graded clean gravels; gravel-sand mixes
Ans: GP
silty gravels; poorly graded gravel-sand mixes
Ans: GM
Clayey gravels; poorly graded gravel-and-clay mixes
Ans: GC
well graded clean sands; gravel-sand mixes
Ans: SW
poorly graded clean sand; sand-gravel mixes
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Ans: SP
Silty sands; poorly graded sand-silt mixes
Ans: SM
Sand-silt clay mix with plastic fines
Ans: SM-SC
Clayey sands; poorly graded sand-clay mixes
Ans: SC
Inorganic silts and clayey silts
Ans: ML
Mixture of inorganic silt and clay
Ans: ML-CL
Inorganic clays of low to medium plasticity
Ans: CL
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Organic silts and silt clay, low plasticity
Ans: OL
inorganic clayey silts, elastic silts
Ans: MH
Inorganic clays of high plasticity
Ans: CH
organic clays and silt clays
Ans: OH
Types of slope stability
Ans: Drainage
slope reduction or flattening
structural solutions
chemical stabilization
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what would stabilize a slope that has been effected by seepage water?
how does this improve slope stability?
Ans: Sub- drainage, decreases the saturation of the slope
when a slope begins at vertical cut what is done to stabilize the slope?
Ans: removing the upper portions or head of the slope or
landslide is the frequently employed technic for reducing the
driving forces that cause the failure to occur
what are red lights on a site?
Ans: low bearing capacity
settlement
existing uncontrolled fill
slope stability
dangerous seismic conditions
frost heave
constructabilty- piers or piles
proposed significate cut or fill
groundwater problems
foundation red lights
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