CM 3111 Exam 2 Questions And Answers
Rough Grading Excavation This typically includes bringing the site to near final grade.
General or Mass Excavation Includes removal of large quantities of dirt for portions of
the building such as basements or for road cuts
Special Excavation Includes the removal of small quantities of dirt that is typically done
by hand.
Soil Borings - ANSWER A boring made on the site in the general location of the proposed
building to determine soil type, depth of the various types of soils and water table level.
27 cf - ANSWER How many cf make up 1 yard?
100 lbs/cf - ANSWER How much does soil typically weigh per cf?
150lbs/cf - ANSWER How much does rock typically weigh per cf?
Bank Cubic Yards (BCY) - ANSWER Material in its natural state is called _________
material.
Bank - ANSWER When ________ materials are excavated, the earth and rocks are
disturbed and start to swell.
Swell - ANSWER The growth of soil assuming a larger volume after excavation; This is
generally expressed as a percentum gained above the original volume.
, Loose - ANSWER When __________ materials are placed and compacted on a project. It
will often occupy less volume than in its Bank condition. This reduction is referred to as
shrinkage.
Shrinkage - ANSWER The compression of soil being compacted into a smaller form than
when it was loose. This is expressed as a percentage of the undisturbed original or bank
volume.
Loose Cubic Yards LCY ANSWER Unit of measure for uncompacted, excavated material
which is usually used as the fill on projects.
Compacted Cubic Yards CCY ANSWER Unit of measure for materials that have been
placed and have been compressed.
Trucks or Tractor-Pulled Wagons ANSWER If material must be hauled some distance,
either as the excavated material hauled out or as the fill material hauled in, what
equipment may be required?
Front-End Loader and Bulldozer - ANSWER What below equipment is often used in
shallow excavations, provided the soil excavated near the area, and should not be used
to travel over 100 ft in one direction?
Backhoe - ANSWER What below equipment is used for digging basements, trenches for
strip footings, and utilities and for excavating individual pier footings, manholes, catch
basins, and septic tanks?
Power Shovel - ANSWER What type of equipment is used in large excavations as an
economical method of excavating and loading the trucks quickly and efficiently?
Tractor-hauled and Self-Propelled Scrapers - ANSWER What type of equipment is used
for the cutting and filling requirements on large-sized grading projects?
Cutting - ANSWER This type of Earthwork consists of bringing the ground to a lower
Rough Grading Excavation This typically includes bringing the site to near final grade.
General or Mass Excavation Includes removal of large quantities of dirt for portions of
the building such as basements or for road cuts
Special Excavation Includes the removal of small quantities of dirt that is typically done
by hand.
Soil Borings - ANSWER A boring made on the site in the general location of the proposed
building to determine soil type, depth of the various types of soils and water table level.
27 cf - ANSWER How many cf make up 1 yard?
100 lbs/cf - ANSWER How much does soil typically weigh per cf?
150lbs/cf - ANSWER How much does rock typically weigh per cf?
Bank Cubic Yards (BCY) - ANSWER Material in its natural state is called _________
material.
Bank - ANSWER When ________ materials are excavated, the earth and rocks are
disturbed and start to swell.
Swell - ANSWER The growth of soil assuming a larger volume after excavation; This is
generally expressed as a percentum gained above the original volume.
, Loose - ANSWER When __________ materials are placed and compacted on a project. It
will often occupy less volume than in its Bank condition. This reduction is referred to as
shrinkage.
Shrinkage - ANSWER The compression of soil being compacted into a smaller form than
when it was loose. This is expressed as a percentage of the undisturbed original or bank
volume.
Loose Cubic Yards LCY ANSWER Unit of measure for uncompacted, excavated material
which is usually used as the fill on projects.
Compacted Cubic Yards CCY ANSWER Unit of measure for materials that have been
placed and have been compressed.
Trucks or Tractor-Pulled Wagons ANSWER If material must be hauled some distance,
either as the excavated material hauled out or as the fill material hauled in, what
equipment may be required?
Front-End Loader and Bulldozer - ANSWER What below equipment is often used in
shallow excavations, provided the soil excavated near the area, and should not be used
to travel over 100 ft in one direction?
Backhoe - ANSWER What below equipment is used for digging basements, trenches for
strip footings, and utilities and for excavating individual pier footings, manholes, catch
basins, and septic tanks?
Power Shovel - ANSWER What type of equipment is used in large excavations as an
economical method of excavating and loading the trucks quickly and efficiently?
Tractor-hauled and Self-Propelled Scrapers - ANSWER What type of equipment is used
for the cutting and filling requirements on large-sized grading projects?
Cutting - ANSWER This type of Earthwork consists of bringing the ground to a lower
