ACI Concrete Field Technician - Grade 1
Questions & 100% Verified Answers
1. A |6 |by |12 |in |[150 |mm |by |300 |mm] |cylinder |mold |can |be |used |for |concrete |containing
| aggregate |with |particles |not |exceeding | in |size, |without |the |need |for |wet |sieving
| the |concrete.
☑☑: | 2 |in. |[50 |mm]
2. According |to |ASTM |C1064, |what |is |one |reason |to |take |the |temperature |of |concrete?
☑☑: | Verify |conformance |to |a |specified |requirement |for |temperature |of |concrete
3. After |completing |the |strike-off |procedure, |what |must |be |done |before |weighing |the
| measure |and |sample?
☑☑: | Clean |off |any |excess |concrete
4. After |consolidation |of |the |final |layer, |an |excess |of |concrete | above |the |top |of |the
| measure |is |considered |optimum.
☑☑: | 1/8 |in. |[3 |mm]
5. After |molding |test |specimens, |you |should |wait |two |hours |before |moving |them |to |the
1
,| location |of |initial |storage. |True |or |False?
2
, ☑☑: | False; |the |specimens |must |be |moved |within |15 |minutes
6. After |rodding |each |layer, |what |should |be |done |to |the |measure |before |adding |another
| layer |of |concrete?
☑☑: | Tap |the |sides |of |the |measure |smartly |10 |to |15 |times |with |the |mallet
7. After |the |final |rodding, |the |sides |of |the |slump |mold |should |be |tapped |lightly |with |the
| tamping |rod. |True |or |False?
☑☑: | False
8. After |the |temperature |of |the |concrete |is |read, |what |is |required?
☑☑: | Reporting |of |temperature, |record |it. |Sun, |wind, |contamination.
9. Air |meter |bowls |used |for |this |test |must |conform |to |ASTM | and |be |calibrated |for
| volume |according |to |ASTM | .
☑☑: | C231, |C29
10. The |approximate |concrete |depth |(in |vertical |distance) |after |placing |the |first |layer |is
, |and |the |second |layer |is | .
☑☑: | 2 |5/8 |in. |[70 |mm], |6 |1/8 |in. |[160 |mm |]
11. ASTM |Method |gives |standardized |requirements |for | ,| ,| , |and
, |of |test |specimens.
3
Questions & 100% Verified Answers
1. A |6 |by |12 |in |[150 |mm |by |300 |mm] |cylinder |mold |can |be |used |for |concrete |containing
| aggregate |with |particles |not |exceeding | in |size, |without |the |need |for |wet |sieving
| the |concrete.
☑☑: | 2 |in. |[50 |mm]
2. According |to |ASTM |C1064, |what |is |one |reason |to |take |the |temperature |of |concrete?
☑☑: | Verify |conformance |to |a |specified |requirement |for |temperature |of |concrete
3. After |completing |the |strike-off |procedure, |what |must |be |done |before |weighing |the
| measure |and |sample?
☑☑: | Clean |off |any |excess |concrete
4. After |consolidation |of |the |final |layer, |an |excess |of |concrete | above |the |top |of |the
| measure |is |considered |optimum.
☑☑: | 1/8 |in. |[3 |mm]
5. After |molding |test |specimens, |you |should |wait |two |hours |before |moving |them |to |the
1
,| location |of |initial |storage. |True |or |False?
2
, ☑☑: | False; |the |specimens |must |be |moved |within |15 |minutes
6. After |rodding |each |layer, |what |should |be |done |to |the |measure |before |adding |another
| layer |of |concrete?
☑☑: | Tap |the |sides |of |the |measure |smartly |10 |to |15 |times |with |the |mallet
7. After |the |final |rodding, |the |sides |of |the |slump |mold |should |be |tapped |lightly |with |the
| tamping |rod. |True |or |False?
☑☑: | False
8. After |the |temperature |of |the |concrete |is |read, |what |is |required?
☑☑: | Reporting |of |temperature, |record |it. |Sun, |wind, |contamination.
9. Air |meter |bowls |used |for |this |test |must |conform |to |ASTM | and |be |calibrated |for
| volume |according |to |ASTM | .
☑☑: | C231, |C29
10. The |approximate |concrete |depth |(in |vertical |distance) |after |placing |the |first |layer |is
, |and |the |second |layer |is | .
☑☑: | 2 |5/8 |in. |[70 |mm], |6 |1/8 |in. |[160 |mm |]
11. ASTM |Method |gives |standardized |requirements |for | ,| ,| , |and
, |of |test |specimens.
3
