Ashworth College B06V Lesson 4 and 5 Exam Chap 10 -12
Question 1 2..5 points
When estimating the concrete quantity of a continuous footing, the estimator should:
Question options:
calculate the concrete volume for each section of the footing independently.
calculate the perimeter of the building as a good estimate of the length of the footing
and multiply by the cross sectional area to obtain the concrete volume.
for each size of footing, determine the total linear feet of the footing, calculate the
cross sectional area, and multiply these together to calculate the volume.
not include a waste factor for the concrete since all of the pours are formed and
therefore the exact volume of concrete can be calculated.
Question
2..5 points
2
When estimating wire mesh quantities:
Question options:
the square footage of floor area to be covered may be taken from the slab concrete
calculations.
the quantity of mesh can be purchased in the exact quantities required for the project.
no splices are required so no adjustment needs to be made.
the estimator should convert the square footage required into a total weight to apply
production rates for installation.
Question
2..5 points
3
Proper concrete curing:
Question options:
involves controlling the temperature and moisture conditions for a period usually
ranging from 3 to 14 days.
is not the final step in the production of good concrete.
would not include the contractor continuously spraying the concrete with water due to
the number of work hours required.
is not affected by the weather conditions.
Question
2..5 points
4
Precast concrete is often used in building construction. Which statement is TRUE?
Question options:
Concrete fill as a topping for tees is usually a minimum of 2 inches thick.
Precast concrete comes from manufacturers off site and is not poured on site.
The estimator does not determine the manufacturers specified to supply the precast
concrete.
Beams and columns are taken off by cy similarly to cast in place concrete on the rest
of the site.
Question
2..5 points
5
To calculate the volume of concrete for a drilled pier, the estimator must determine:
Question options:
the soil conditions in order to determine how much additional concrete will be required
to fill the voids left by the drilling operation.
, the shaft diameter, length, bell diameter, and angle of the bell for each size of drilled
pier.
only the diameter and overall length of the drilled pier because the bell is a standard
size known by the drilling company.
the overall length, width, and height and multiply them together to obtain the volume
of concrete.
Question
2..5 points
6
When estimating reinforcing steel:
Question options:
a good estimate is 150 pounds of reinforcing steel per cubic yard of concrete.
bar hooks are not taken off because they are covered by the waste factor applied to
reinforcing steel.
a typical designation for welded wire mesh is 6x6 – W10xW10.
splices are generally 2'-6" regardless of the size of the bar.
Question
2..5 points
7
To calculate the volume of a cast-in-place concrete slab on grade, the estimator should:
Question options:
add 2 inches to the depth of the slab because of the uneven nature of the subgrade.
disregard openings in the slab on grade regardless of the size.
multiply the length by the width by the depth of the slab and divide by 27.
deduct the volume of the electrical conduit and plumbing pipes encased in the slab in
order not to overstate the actual volume.
Question
2..5 points
8
Form liners when used with forms:
Question options:
will reduce the cost of the overall formwork on a project.
are generally used at the discretion of the general contractor.
will determine the texture or pattern obtained on the surface of the concrete.
can only be purchased and therefore should be estimated for use on multiple
projects.
Question
2..5 points
9
A major consideration in deciding whether to precast concrete on site is:
Question options:
precasting can be performed in a very compact area of the site and eliminates
transportation costs.
precasting may require specialized equipment to be used.
precasting has far fewer cost considerations than cast-in-place concrete.
the supervision and coordination of the entire process is considerably easier because
the casting of the concrete is performed in a controlled area on the project.
Question
2..5 points
10
Question 1 2..5 points
When estimating the concrete quantity of a continuous footing, the estimator should:
Question options:
calculate the concrete volume for each section of the footing independently.
calculate the perimeter of the building as a good estimate of the length of the footing
and multiply by the cross sectional area to obtain the concrete volume.
for each size of footing, determine the total linear feet of the footing, calculate the
cross sectional area, and multiply these together to calculate the volume.
not include a waste factor for the concrete since all of the pours are formed and
therefore the exact volume of concrete can be calculated.
Question
2..5 points
2
When estimating wire mesh quantities:
Question options:
the square footage of floor area to be covered may be taken from the slab concrete
calculations.
the quantity of mesh can be purchased in the exact quantities required for the project.
no splices are required so no adjustment needs to be made.
the estimator should convert the square footage required into a total weight to apply
production rates for installation.
Question
2..5 points
3
Proper concrete curing:
Question options:
involves controlling the temperature and moisture conditions for a period usually
ranging from 3 to 14 days.
is not the final step in the production of good concrete.
would not include the contractor continuously spraying the concrete with water due to
the number of work hours required.
is not affected by the weather conditions.
Question
2..5 points
4
Precast concrete is often used in building construction. Which statement is TRUE?
Question options:
Concrete fill as a topping for tees is usually a minimum of 2 inches thick.
Precast concrete comes from manufacturers off site and is not poured on site.
The estimator does not determine the manufacturers specified to supply the precast
concrete.
Beams and columns are taken off by cy similarly to cast in place concrete on the rest
of the site.
Question
2..5 points
5
To calculate the volume of concrete for a drilled pier, the estimator must determine:
Question options:
the soil conditions in order to determine how much additional concrete will be required
to fill the voids left by the drilling operation.
, the shaft diameter, length, bell diameter, and angle of the bell for each size of drilled
pier.
only the diameter and overall length of the drilled pier because the bell is a standard
size known by the drilling company.
the overall length, width, and height and multiply them together to obtain the volume
of concrete.
Question
2..5 points
6
When estimating reinforcing steel:
Question options:
a good estimate is 150 pounds of reinforcing steel per cubic yard of concrete.
bar hooks are not taken off because they are covered by the waste factor applied to
reinforcing steel.
a typical designation for welded wire mesh is 6x6 – W10xW10.
splices are generally 2'-6" regardless of the size of the bar.
Question
2..5 points
7
To calculate the volume of a cast-in-place concrete slab on grade, the estimator should:
Question options:
add 2 inches to the depth of the slab because of the uneven nature of the subgrade.
disregard openings in the slab on grade regardless of the size.
multiply the length by the width by the depth of the slab and divide by 27.
deduct the volume of the electrical conduit and plumbing pipes encased in the slab in
order not to overstate the actual volume.
Question
2..5 points
8
Form liners when used with forms:
Question options:
will reduce the cost of the overall formwork on a project.
are generally used at the discretion of the general contractor.
will determine the texture or pattern obtained on the surface of the concrete.
can only be purchased and therefore should be estimated for use on multiple
projects.
Question
2..5 points
9
A major consideration in deciding whether to precast concrete on site is:
Question options:
precasting can be performed in a very compact area of the site and eliminates
transportation costs.
precasting may require specialized equipment to be used.
precasting has far fewer cost considerations than cast-in-place concrete.
the supervision and coordination of the entire process is considerably easier because
the casting of the concrete is performed in a controlled area on the project.
Question
2..5 points
10
