EARTHWORK EXAM 1 NEWEST ACTUAL EXAM
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
balance line - answer>>>a horizontal line of specific length that intersects the mass
diagram in two places (maximum haul distance)
clay - answer>>>cohesive material, high strength when air dried, can exhibit plasticity
coeffecient of traction - answer>>>total usable energy that can be applied before
slippage of the tires or tracks occur. usable force = weight of vehicle x coeffecient of
traction
cohesive material - answer>>>soil having strong interparticle attractive forces
considerations of planning - answer>>>quantities involved, haul distances, grades for all
segments, work hazards, and various contract and legal constraints
constraints of planning - answer>>>contract requirements (time duration or completion
dates), legal requiremnts, physical and environmental limitations, climate
cross section view - answer>>>vertical section at right angles to the centerline of the
work
Differing site Conditions - answer>>>type 1 - actual conditions differ materially from
those indicated in the contract
type 2 - actual conditions differ from reasonable expectations
drawbar pull - answer>>>power of tractice force between the tracks and surface of the
road. TR = drawbar pull of track
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
equivalent grade - answer>>>RR + GR and expressed as a % gradient
fine grained soils - answer>>>silts and clays, low and high plasticity
five major types of soil - answer>>>gravel, sand, clay, silt, and organic matter
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
balance line - answer>>>a horizontal line of specific length that intersects the mass
diagram in two places (maximum haul distance)
clay - answer>>>cohesive material, high strength when air dried, can exhibit plasticity
coeffecient of traction - answer>>>total usable energy that can be applied before
slippage of the tires or tracks occur. usable force = weight of vehicle x coeffecient of
traction
cohesive material - answer>>>soil having strong interparticle attractive forces
considerations of planning - answer>>>quantities involved, haul distances, grades for all
segments, work hazards, and various contract and legal constraints
constraints of planning - answer>>>contract requirements (time duration or completion
dates), legal requiremnts, physical and environmental limitations, climate
cross section view - answer>>>vertical section at right angles to the centerline of the
work
Differing site Conditions - answer>>>type 1 - actual conditions differ materially from
those indicated in the contract
type 2 - actual conditions differ from reasonable expectations
drawbar pull - answer>>>power of tractice force between the tracks and surface of the
road. TR = drawbar pull of track
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
equivalent grade - answer>>>RR + GR and expressed as a % gradient
fine grained soils - answer>>>silts and clays, low and high plasticity
five major types of soil - answer>>>gravel, sand, clay, silt, and organic matter
