ACI Written Exam Questions with Correct Answers// Verified A
+ Edition.
C
Terms in this set (49)
The temp. measuring device shall 1 Degree F, 30-120 Degrees F
be
capable of accurately measuring
the temp. of freshly mixed
concrete to
____________________
throughout
a range of__.
A composite sample of False
concrete is required even if the
only purpose for
obtaining the sample is to
determine the temp. T or F?
C172/C172M covers sampling revolving drum, stationary, paving, continuous, & open top
from five type of equipment which
are___, ___, ___, ___, &
____?
The mold for making the slump the frustum of a cone
test is in the shape of ____.
The surface on which the Flat, moist non-absorbent, & rigid
slump mold will be placed
must be ____.
How deep should the tamping Rod each layer throughout it's depth , on second & final layer
rod penetrate each layer? the rod should penetrate into the previous layer
approximately 1 in.
Prior to lifting the mold, the area surrounding the base of the mold
concrete must be removed from
____.
What is the minimum frequency of 9000 Vibrations/Min., 150 Hertz
the
vibrator used in Test Method
C138/C138M
, What is the minimum 1/4 in.
thickness of a metal strike-off
plate used in Test Method
C138/C138M?
What is the minimum thickness 1/2 in.
of a
glass/acrylic strike-off plate
used in Test Method
C138/C138M?
Measures other than air meter C29/C29M
bowls used for Test Method
C138/C138M must conform to
Test Method ___.
Air meter bowls used for Test C231, C29
Method
C138/C138M must conform to
Test Method
___ and be calibrated for volume
according to Test Method ___.
The pressure method of relatively dense
determining air content can
be used on concrete
containing__aggregate.
The pressure method of light weight, air-cooled blast furnace slag, & aggregate of high porosity
determining air content
cannot be used on concrete
containing the following types
of aggregate: ___, ___, & ___.
What is the minimum allowable 6L (0.2ft^3)
capacity of the measuring bowl
used in Test Method
C231/C231M?
Round, straight steel rod, w/ a 16 mm (5/8 in) +-2 mm (1/16
What are the required
in) diameter, length of at least 100 mm (4 in) greater than the
characteristics of the tamping
depth of the measuring bowl, but not greater than 600 mm (24
rod used in Test Method
in) in overall length w/ the tamping end rounded to a
C231/C231M?
hemispherical tip of the same diameter as the rod
What is the specified size of the 1 & 1/4 lbs +-0.5 lbs
mallet required for Test Method
C231/C231M
+ Edition.
C
Terms in this set (49)
The temp. measuring device shall 1 Degree F, 30-120 Degrees F
be
capable of accurately measuring
the temp. of freshly mixed
concrete to
____________________
throughout
a range of__.
A composite sample of False
concrete is required even if the
only purpose for
obtaining the sample is to
determine the temp. T or F?
C172/C172M covers sampling revolving drum, stationary, paving, continuous, & open top
from five type of equipment which
are___, ___, ___, ___, &
____?
The mold for making the slump the frustum of a cone
test is in the shape of ____.
The surface on which the Flat, moist non-absorbent, & rigid
slump mold will be placed
must be ____.
How deep should the tamping Rod each layer throughout it's depth , on second & final layer
rod penetrate each layer? the rod should penetrate into the previous layer
approximately 1 in.
Prior to lifting the mold, the area surrounding the base of the mold
concrete must be removed from
____.
What is the minimum frequency of 9000 Vibrations/Min., 150 Hertz
the
vibrator used in Test Method
C138/C138M
, What is the minimum 1/4 in.
thickness of a metal strike-off
plate used in Test Method
C138/C138M?
What is the minimum thickness 1/2 in.
of a
glass/acrylic strike-off plate
used in Test Method
C138/C138M?
Measures other than air meter C29/C29M
bowls used for Test Method
C138/C138M must conform to
Test Method ___.
Air meter bowls used for Test C231, C29
Method
C138/C138M must conform to
Test Method
___ and be calibrated for volume
according to Test Method ___.
The pressure method of relatively dense
determining air content can
be used on concrete
containing__aggregate.
The pressure method of light weight, air-cooled blast furnace slag, & aggregate of high porosity
determining air content
cannot be used on concrete
containing the following types
of aggregate: ___, ___, & ___.
What is the minimum allowable 6L (0.2ft^3)
capacity of the measuring bowl
used in Test Method
C231/C231M?
Round, straight steel rod, w/ a 16 mm (5/8 in) +-2 mm (1/16
What are the required
in) diameter, length of at least 100 mm (4 in) greater than the
characteristics of the tamping
depth of the measuring bowl, but not greater than 600 mm (24
rod used in Test Method
in) in overall length w/ the tamping end rounded to a
C231/C231M?
hemispherical tip of the same diameter as the rod
What is the specified size of the 1 & 1/4 lbs +-0.5 lbs
mallet required for Test Method
C231/C231M
