COSC 354 EXAM 1 – BAILEY QUESTIONS WITH
COMPLETE SOLUTIONS
____% of construction materials in landfills were because of
demolition of buildings Correct Answers 32
*Concrete is _____ under compression, but has _____ tensile
strength Correct Answers strong, low
2,3,4,5,25 Rule Correct Answers 2: Keep Soils 2 feet back
from the excavation, so there is not a chance for the spoils to fall
back in
3: Make sure your means of egress (typically a ladder) extends 3
feet past the top of excavation
4: At 4 feet, a ladder or stairs will be required for exit and egress
5: At 5 feet deep, a trench must have a protective system in
place (sloping, benching, shoring, trench box)
25: At 25 feet deep, all excavations must have an engineered
shoring system
3 environmental impacts during the phases of the life cycle
Correct Answers Energy use
Emissions
Resource depletion
3 Major Building Parts Correct Answers Foundation
Substructure (beneath ground level)
Superstructure (above ground)
3 Types of Bracing Correct Answers → Crosslot Bracing
→ Rakers
,→ Tiebacks
A Correct Answers Assembly
A keyway in a concrete wall system has one primary objective,
that is: Correct Answers Provide a mechanical connection
between two adjacent pours
A poorly graded soil is ____ sorted Correct Answers well
A well graded soil is _____ sorted. Correct Answers poorly
Accelerating Admixtures Correct Answers Increase the rate of
early strength development, reduce the time required for proper
curing and protection, and speed up the start of finishing
operations. Accelerating admixtures are especially useful for
modifying the properties of concrete in cold weather
Aggregates make up about ____% of the volume of concrete,
and between _____% of the weight of concrete Correct
Answers Aggregates make up about 75% of the volume of
concrete, and between 80-85% of the weight of concrete
Air Entraining Correct Answers cause microscopic bubbles in
the concrete that increase the resistance to freezing and thawing
(areas where the temp is fluctuating above and below freezing
temps)
Air Entrainment Admixtures: Correct Answers Reduce the risk
of concrete in freeze/thaw conditions. These air pockets relieve
,internal pressure on the concrete by providing tiny chambers for
water to expand into when it freezes
American National Standards Institute (ANSI) Correct Answers
Private non profit organization that certifies standards for both
materials and safety
Ultimately, ANSI is an umbrellas organizations that certifies the
standards that other organization create
ANSI provides voluntary guidance on product safety and
conformity - including regulations on work environments andj
obsite safety
An estimator for XYZ construction company is providing a cost
estimate for a building. The estimator is working on providing a
conceptual estimate for the building piers. What Level 1 Group
Element will this estimate fall into? Correct Answers
Substructure
Angle of repose Correct Answers the steepest angle at which
loose material remains stationary without sliding downslope
As a rule of thumb, one story of excavated soil weighs about the
same as _____ to ____ stories of superstructure Correct
Answers 5 to 8
ASTM International Correct Answers Formerly known as
American Society for Testing and Materials
Private Organization that sets standards of materials and
methods throughout the U.S
, Atterberg Limits Correct Answers The moisture content at
which the soil changes state (typically through determining the
plastic limit and the liquid limit of the soil)
Auger Cast Piles Correct Answers Formed by drilling into the
ground with a hollow, continuous flight auger to a required
depth or degree of resistance
A high pump grout mix is then pumped down the stem of the
auger under constant pressure while the auger is slowly
withdrawn, leaving a shaft of fluid grout to ground level
B Correct Answers Business
Benching typical ratio Correct Answers 1:1
Bituminous dampproofing Correct Answers is asphalt based,
black in color, and is sprayed rolled, or troweled on
Capillary Break Correct Answers layer of crushed stone could
be added to create a stable base and drainage later
Cement plaster or parge coating Correct Answers light gray
and is troweled on.
Certified Correct Answers 40-49 points
Clay and Shales Correct Answers Enhances impermeability
and chemical durability, and improved resistance to thermal
cracking
Coarse Aggregate Correct Answers Gravel (erosion),
COMPLETE SOLUTIONS
____% of construction materials in landfills were because of
demolition of buildings Correct Answers 32
*Concrete is _____ under compression, but has _____ tensile
strength Correct Answers strong, low
2,3,4,5,25 Rule Correct Answers 2: Keep Soils 2 feet back
from the excavation, so there is not a chance for the spoils to fall
back in
3: Make sure your means of egress (typically a ladder) extends 3
feet past the top of excavation
4: At 4 feet, a ladder or stairs will be required for exit and egress
5: At 5 feet deep, a trench must have a protective system in
place (sloping, benching, shoring, trench box)
25: At 25 feet deep, all excavations must have an engineered
shoring system
3 environmental impacts during the phases of the life cycle
Correct Answers Energy use
Emissions
Resource depletion
3 Major Building Parts Correct Answers Foundation
Substructure (beneath ground level)
Superstructure (above ground)
3 Types of Bracing Correct Answers → Crosslot Bracing
→ Rakers
,→ Tiebacks
A Correct Answers Assembly
A keyway in a concrete wall system has one primary objective,
that is: Correct Answers Provide a mechanical connection
between two adjacent pours
A poorly graded soil is ____ sorted Correct Answers well
A well graded soil is _____ sorted. Correct Answers poorly
Accelerating Admixtures Correct Answers Increase the rate of
early strength development, reduce the time required for proper
curing and protection, and speed up the start of finishing
operations. Accelerating admixtures are especially useful for
modifying the properties of concrete in cold weather
Aggregates make up about ____% of the volume of concrete,
and between _____% of the weight of concrete Correct
Answers Aggregates make up about 75% of the volume of
concrete, and between 80-85% of the weight of concrete
Air Entraining Correct Answers cause microscopic bubbles in
the concrete that increase the resistance to freezing and thawing
(areas where the temp is fluctuating above and below freezing
temps)
Air Entrainment Admixtures: Correct Answers Reduce the risk
of concrete in freeze/thaw conditions. These air pockets relieve
,internal pressure on the concrete by providing tiny chambers for
water to expand into when it freezes
American National Standards Institute (ANSI) Correct Answers
Private non profit organization that certifies standards for both
materials and safety
Ultimately, ANSI is an umbrellas organizations that certifies the
standards that other organization create
ANSI provides voluntary guidance on product safety and
conformity - including regulations on work environments andj
obsite safety
An estimator for XYZ construction company is providing a cost
estimate for a building. The estimator is working on providing a
conceptual estimate for the building piers. What Level 1 Group
Element will this estimate fall into? Correct Answers
Substructure
Angle of repose Correct Answers the steepest angle at which
loose material remains stationary without sliding downslope
As a rule of thumb, one story of excavated soil weighs about the
same as _____ to ____ stories of superstructure Correct
Answers 5 to 8
ASTM International Correct Answers Formerly known as
American Society for Testing and Materials
Private Organization that sets standards of materials and
methods throughout the U.S
, Atterberg Limits Correct Answers The moisture content at
which the soil changes state (typically through determining the
plastic limit and the liquid limit of the soil)
Auger Cast Piles Correct Answers Formed by drilling into the
ground with a hollow, continuous flight auger to a required
depth or degree of resistance
A high pump grout mix is then pumped down the stem of the
auger under constant pressure while the auger is slowly
withdrawn, leaving a shaft of fluid grout to ground level
B Correct Answers Business
Benching typical ratio Correct Answers 1:1
Bituminous dampproofing Correct Answers is asphalt based,
black in color, and is sprayed rolled, or troweled on
Capillary Break Correct Answers layer of crushed stone could
be added to create a stable base and drainage later
Cement plaster or parge coating Correct Answers light gray
and is troweled on.
Certified Correct Answers 40-49 points
Clay and Shales Correct Answers Enhances impermeability
and chemical durability, and improved resistance to thermal
cracking
Coarse Aggregate Correct Answers Gravel (erosion),
