ACI Test with Real Questions and
Correct Answers 2024. Already
Graded A+.
. The rolling process should be continued for a minimum of - ANS1min
****. It is not allowable to use the bowl from the volumetric air meter test to determine
the density of fresh concrete, when the NMAS is 1 inch or less. - ANS
****Specimens made for determining when a structure can be placed in service shall be
removed from their molds at the same time the formwork is removed. - ANST
****The length of the tamping for the slump test shall be approximately - ANS
****The slump test does not provide an indication of the water content of a concrete
mixture. - ANSF
1. The standard sized flexural strength specimen has cross-sectional dimensions of -
ANS6in. x 6in
10. The liquid level in the neck of the meter is stabilized when - ANSthe liquid level does
not change more than 0.25% within a 2 minute
period
11. The concrete used to mold test specimens should not be sampled before any on-
site adjustments in water or admixtures are made. - ANST
11. Whenever a reading of the liquid level is taken, the reading is rounded to the
nearest - ANS0.25%
12. If the foam in the neck of the meter is equivalent to ______ percent air content
divisions, or more, the sample must be discarded and test rerun. - ANS2
12. Specimens cured following field curing requirements may be used - ANSto
determine the density of fresh concrete
14. When vibration is used to consolidate concrete in a standard cylinder mold,
___________ layers of concrete in the mold should be used. - ANS2
2. The standard sized compressive cylinder and flexural beam molds are used for
concrete with nominal maximum sized coarse aggregate up to _________. - ANS2 in
, 2. The volumetric method measures the volume of air present within - ANSthe paste
fraction only
3. The appropriate method of consolidation, when the slump of the fresh concrete is
less than 1 inch, is to use _______. - ANSa vibrator
3. The purpose for adding isopropyl alcohol to the volumetric meter is to - ANShelp
dissolve the foam that can be created during the test
4. The rod should __________________________when rodding the second and third
layers of concrete in the measure. - ANSc. penetrate the underlying layer about 1 inch.
4. Wet sieve a sufficient amount of material for the volumetric air content test over a
______ in. sieve when the coarse aggregate for the mixture can be retained on a 1.5in.
sieve. - ANS1
5. The bowl of the volumetric meter is filled in ______ layers of equal depth. - ANS2
6. After completing the consolidation portion of the test, it is optimal to have
approximately 1/8 inch of excess concrete above the rim of the measure. - ANST
6. Single-use cylinder molds that are susceptible to damage when tapped with a rubber
mallet should instead by tapped 10 to 15 times with - ANSwith an open hand
6. The excess concrete above the rim of the bowl is struck off using - ANSstrike off bar
6. The exterior of the slump cone is tapped 10 to 15 times after rodding each layer. -
ANSF
7. Assume that the reading from the dial gage is 5.5% and the aggregate correction
factor for the concrete mixture is 0.5%. The final air content for this mixture is - ANS5.5 -
0.5% = 5.0%
7. Concrete test specimens with a specified compressive strength less than 6,000psi,
should be initially cured in a temperature range from - ANS60 to 80
7. Prior to adding any isopropyl alcohol to the meter, it is necessary to add at least ____
of water. - ANS1 pint
8. If the top surface of the concrete falls below the top of the slump cone while rodding
the final layer of concrete, - ANSstop, add concrete to maintain an excess, then
continue the rod count from
where you left off.
8. The meter should be inverted and agitated for at least - ANS45 sec
Correct Answers 2024. Already
Graded A+.
. The rolling process should be continued for a minimum of - ANS1min
****. It is not allowable to use the bowl from the volumetric air meter test to determine
the density of fresh concrete, when the NMAS is 1 inch or less. - ANS
****Specimens made for determining when a structure can be placed in service shall be
removed from their molds at the same time the formwork is removed. - ANST
****The length of the tamping for the slump test shall be approximately - ANS
****The slump test does not provide an indication of the water content of a concrete
mixture. - ANSF
1. The standard sized flexural strength specimen has cross-sectional dimensions of -
ANS6in. x 6in
10. The liquid level in the neck of the meter is stabilized when - ANSthe liquid level does
not change more than 0.25% within a 2 minute
period
11. The concrete used to mold test specimens should not be sampled before any on-
site adjustments in water or admixtures are made. - ANST
11. Whenever a reading of the liquid level is taken, the reading is rounded to the
nearest - ANS0.25%
12. If the foam in the neck of the meter is equivalent to ______ percent air content
divisions, or more, the sample must be discarded and test rerun. - ANS2
12. Specimens cured following field curing requirements may be used - ANSto
determine the density of fresh concrete
14. When vibration is used to consolidate concrete in a standard cylinder mold,
___________ layers of concrete in the mold should be used. - ANS2
2. The standard sized compressive cylinder and flexural beam molds are used for
concrete with nominal maximum sized coarse aggregate up to _________. - ANS2 in
, 2. The volumetric method measures the volume of air present within - ANSthe paste
fraction only
3. The appropriate method of consolidation, when the slump of the fresh concrete is
less than 1 inch, is to use _______. - ANSa vibrator
3. The purpose for adding isopropyl alcohol to the volumetric meter is to - ANShelp
dissolve the foam that can be created during the test
4. The rod should __________________________when rodding the second and third
layers of concrete in the measure. - ANSc. penetrate the underlying layer about 1 inch.
4. Wet sieve a sufficient amount of material for the volumetric air content test over a
______ in. sieve when the coarse aggregate for the mixture can be retained on a 1.5in.
sieve. - ANS1
5. The bowl of the volumetric meter is filled in ______ layers of equal depth. - ANS2
6. After completing the consolidation portion of the test, it is optimal to have
approximately 1/8 inch of excess concrete above the rim of the measure. - ANST
6. Single-use cylinder molds that are susceptible to damage when tapped with a rubber
mallet should instead by tapped 10 to 15 times with - ANSwith an open hand
6. The excess concrete above the rim of the bowl is struck off using - ANSstrike off bar
6. The exterior of the slump cone is tapped 10 to 15 times after rodding each layer. -
ANSF
7. Assume that the reading from the dial gage is 5.5% and the aggregate correction
factor for the concrete mixture is 0.5%. The final air content for this mixture is - ANS5.5 -
0.5% = 5.0%
7. Concrete test specimens with a specified compressive strength less than 6,000psi,
should be initially cured in a temperature range from - ANS60 to 80
7. Prior to adding any isopropyl alcohol to the meter, it is necessary to add at least ____
of water. - ANS1 pint
8. If the top surface of the concrete falls below the top of the slump cone while rodding
the final layer of concrete, - ANSstop, add concrete to maintain an excess, then
continue the rod count from
where you left off.
8. The meter should be inverted and agitated for at least - ANS45 sec
