CM 2112 EARTHWORK EXAM
QUESTIONS AND ANSWERS
What type of compactor is used for compacting granular soils, crushed aggregate, and
asphalt concrete in locations where large compactors could not operate? - Answer-
Manually operated vibratory-plate compactors
What type of compactor is used for compacting cohesive or mixed soils in confined
areas? - Answer- Manually operated rammer compactors
What type of dozer is good on firm soils and concrete and abrasive soils that have no
sharp-edged pieces? - Answer- Wheel dozer
What type of dozer is best for level and downhill work? - Answer- Wheel Dozer
What type of dozer is good for long travel distances? - Answer- Wheel Dozer
What type of dozer is best for handling loose soils? - Answer- Wheel Dozer
What type of dozer can handle only moderate blade loads? - Answer- Wheel Dozer
What type of dozer can work on a variety of soils and sharp-edged pieces? - Answer-
Crawler Dozer
What graphical view of earthwork is the construction drawing that depicts vertical
sections of earthworks at right angles to the centerline of the work? - Answer- Cross
Section View
What type of dozer can work over almost any terrain? - Answer- Crawler Dozer
What type of dozer is good for short work distances? - Answer- Crawler Dozer
What type of dozer can handle tight soils? - Answer- Crawler Dozer
What type of dozer can push large blade loads? - Answer- Crawler Dozer
According to the ASTM what type of soil will pass a size of 3 in. and be retained on a 2
mm (No. 10 sieve)? - Answer- Gravel
, According to the ASTM what type of soil has a size of 2 mm to 0.074 mm (No. 200
sieve)? - Answer- Sand
According to the ASTM what type of soil has particles smaller than 0.074 mm but larger
than 0.005mm? - Answer- Silt
According to the ASTM what type of soil has particles less than 0.005 mm? - Answer-
Clay
According to the ASTM what type of soil is decomposed vegetation? - Answer- Organic
Matter
The water content at which a soil passes from the plastic to the liquid state is known as:
- Answer- Liquid Limit
Sand or fine crushed stone used for filling voids in course aggregate. Generally less
than ¼" and greater than No. 200 sieve. - Answer- Aggregate, fine
Plastic materials, such as clay-gravels that contain at least 50% coarse material
retained on a No. 40 mesh screen. - Answer- Base Stabilization
Shaping the material to the final earthwork grade required by the specifications -
Answer- Finish Work
Quality of some soil particles to be attracted to like particles manifested in a tendency to
stick together, a property of platy clay particles - Answer- Cohesion
In earthwork calculations, a graphical representation of the algebraic cumulative
quantities of cut and fill along the center line, where the cut is positive, and fill is
negative. Used to calculate haul in terms of station yards. - Answer- Mass Diagram
What earthwork construction drawing represents the horizontal alignment of the work? -
Answer- Plan View
The water content at which a soil passes from the plastic to the semisolid state is known
as: - Answer- Plastic Limit
The numerical difference between a soil's liquid limit and its plastic limit is known as: -
Answer- Plasticity Index
Which state measures soil volume as 1 cubic yard (cy) of material in natural state? -
Answer- Bank cubic yard
Which state measures soil volume as 1 cubic yard (cy) of material disturbed by a
loading process? - Answer- Loose cubic yard
QUESTIONS AND ANSWERS
What type of compactor is used for compacting granular soils, crushed aggregate, and
asphalt concrete in locations where large compactors could not operate? - Answer-
Manually operated vibratory-plate compactors
What type of compactor is used for compacting cohesive or mixed soils in confined
areas? - Answer- Manually operated rammer compactors
What type of dozer is good on firm soils and concrete and abrasive soils that have no
sharp-edged pieces? - Answer- Wheel dozer
What type of dozer is best for level and downhill work? - Answer- Wheel Dozer
What type of dozer is good for long travel distances? - Answer- Wheel Dozer
What type of dozer is best for handling loose soils? - Answer- Wheel Dozer
What type of dozer can handle only moderate blade loads? - Answer- Wheel Dozer
What type of dozer can work on a variety of soils and sharp-edged pieces? - Answer-
Crawler Dozer
What graphical view of earthwork is the construction drawing that depicts vertical
sections of earthworks at right angles to the centerline of the work? - Answer- Cross
Section View
What type of dozer can work over almost any terrain? - Answer- Crawler Dozer
What type of dozer is good for short work distances? - Answer- Crawler Dozer
What type of dozer can handle tight soils? - Answer- Crawler Dozer
What type of dozer can push large blade loads? - Answer- Crawler Dozer
According to the ASTM what type of soil will pass a size of 3 in. and be retained on a 2
mm (No. 10 sieve)? - Answer- Gravel
, According to the ASTM what type of soil has a size of 2 mm to 0.074 mm (No. 200
sieve)? - Answer- Sand
According to the ASTM what type of soil has particles smaller than 0.074 mm but larger
than 0.005mm? - Answer- Silt
According to the ASTM what type of soil has particles less than 0.005 mm? - Answer-
Clay
According to the ASTM what type of soil is decomposed vegetation? - Answer- Organic
Matter
The water content at which a soil passes from the plastic to the liquid state is known as:
- Answer- Liquid Limit
Sand or fine crushed stone used for filling voids in course aggregate. Generally less
than ¼" and greater than No. 200 sieve. - Answer- Aggregate, fine
Plastic materials, such as clay-gravels that contain at least 50% coarse material
retained on a No. 40 mesh screen. - Answer- Base Stabilization
Shaping the material to the final earthwork grade required by the specifications -
Answer- Finish Work
Quality of some soil particles to be attracted to like particles manifested in a tendency to
stick together, a property of platy clay particles - Answer- Cohesion
In earthwork calculations, a graphical representation of the algebraic cumulative
quantities of cut and fill along the center line, where the cut is positive, and fill is
negative. Used to calculate haul in terms of station yards. - Answer- Mass Diagram
What earthwork construction drawing represents the horizontal alignment of the work? -
Answer- Plan View
The water content at which a soil passes from the plastic to the semisolid state is known
as: - Answer- Plastic Limit
The numerical difference between a soil's liquid limit and its plastic limit is known as: -
Answer- Plasticity Index
Which state measures soil volume as 1 cubic yard (cy) of material in natural state? -
Answer- Bank cubic yard
Which state measures soil volume as 1 cubic yard (cy) of material disturbed by a
loading process? - Answer- Loose cubic yard
