Earthwork Exam 1 WITH COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+(2025)
station cross section problem - (answer)((EA + EA)/2) x (L/27)
station - (answer)horizontal distance of 100 ft
plan view - (answer)horizontal alignment
profile view - (answer)vertical plane cut through the centerline of the work
cross section view - (answer)vertical section at right angles to the centerline of the work
stripping - (answer)removing upper layer of amterial before excavation
in situ - (answer)natural undisturbed in place soil or rock
cohesive material - (answer)soil having strong interparticle attractive forces
plasticity - (answer)capability of being molded
shrinkage - (answer)volume reduction usually occurring when soils or rock are subjected to moisture or
mechanical compaction
swell - (answer)a volume increase occuring when soils or rocks are excavated and loosened from the
earths crust
five major types of soil - (answer)gravel, sand, clay, silt, and organic matter
, Earthwork Exam 1 WITH COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+(2025)
liquid limit - (answer)the water content at which a soil passes from the plastic to the liquid state. High LL
values are soils with high compressibility
optimum water content - (answer)amount of water required for a given soil to reach maximum density
proctor test - (answer)R.R. procotor developed to determine moisture-density relationship in soils
subjected to compaction. standard test 5.5lb rammer, 12 in drop, 3 layers. Modified test 10lb rammer, 18
in drop, 5 layers.
drying out wet soil - (answer)aerate or add a soil stabilization agent. Lime or fly ash is for fine-grained
soils. Mechanically it can be done by scarifying the soil with a grader
soil limits - (answer)were developed to serve as reference points in order to differentiate between highly
plastic, slightly plastic, and nonplastic materials
shrinkage factor - (answer)ccy dry weight / bcy dry weight
fine grained soils - (answer)silts and clays, low and high plasticity
soil - (answer)loose surface of earths crust, created naturally from the disintegration of rocks or decays
of vegetation
Payload - (answer)volumetric= capacity in terms of cubic ayrds
gravimetric = capacity based on safe operating weight
required power - (answer)Total resistance = Rolling resistance + Grade Resistance
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+(2025)
station cross section problem - (answer)((EA + EA)/2) x (L/27)
station - (answer)horizontal distance of 100 ft
plan view - (answer)horizontal alignment
profile view - (answer)vertical plane cut through the centerline of the work
cross section view - (answer)vertical section at right angles to the centerline of the work
stripping - (answer)removing upper layer of amterial before excavation
in situ - (answer)natural undisturbed in place soil or rock
cohesive material - (answer)soil having strong interparticle attractive forces
plasticity - (answer)capability of being molded
shrinkage - (answer)volume reduction usually occurring when soils or rock are subjected to moisture or
mechanical compaction
swell - (answer)a volume increase occuring when soils or rocks are excavated and loosened from the
earths crust
five major types of soil - (answer)gravel, sand, clay, silt, and organic matter
, Earthwork Exam 1 WITH COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+(2025)
liquid limit - (answer)the water content at which a soil passes from the plastic to the liquid state. High LL
values are soils with high compressibility
optimum water content - (answer)amount of water required for a given soil to reach maximum density
proctor test - (answer)R.R. procotor developed to determine moisture-density relationship in soils
subjected to compaction. standard test 5.5lb rammer, 12 in drop, 3 layers. Modified test 10lb rammer, 18
in drop, 5 layers.
drying out wet soil - (answer)aerate or add a soil stabilization agent. Lime or fly ash is for fine-grained
soils. Mechanically it can be done by scarifying the soil with a grader
soil limits - (answer)were developed to serve as reference points in order to differentiate between highly
plastic, slightly plastic, and nonplastic materials
shrinkage factor - (answer)ccy dry weight / bcy dry weight
fine grained soils - (answer)silts and clays, low and high plasticity
soil - (answer)loose surface of earths crust, created naturally from the disintegration of rocks or decays
of vegetation
Payload - (answer)volumetric= capacity in terms of cubic ayrds
gravimetric = capacity based on safe operating weight
required power - (answer)Total resistance = Rolling resistance + Grade Resistance
