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Concrete Batch Plant Operator Exam (FDOT)
Questions And Answers| Already Graded A+|
Latest Update.
Stockpiles of aggregate shall be maintained in a well-drained condition in order to: -
Answer✔Minimize Free Water Content
Coarse aggregate stockpiles must be sprinkled for at lest how many hours prior to batch for
FDOT? - Answer✔24
Free moisture of the aggregate means: - Answer✔Moister on the surface of an aggregate that is
above and beyond the absorbed moister in the aggregate.
If the moister test is done other than by the cook-out method, how often shall the other
methods be verified? - Answer✔Each week
For drill shaft concrete, the quantity of cement replaced with fly ash shall be: - Answer✔33 thru
37%
In concrete, which material has a specific gravity of one? - Answer✔Water
What is the air content range for all classes of structural concrete except Class IV Shaft? -
Answer✔1.00 thru 6.00%
When can unmetered water be added to the concrete? - Answer✔Not at all.
Do not allow the total number of revolution at mixing speed to exceed: - Answer✔160
Revolutions
After all materials have been charged into the transit mixer drum, the concrete must be mixed
at how many revolutions at the plant before leaving for the project? - Answer✔70 to 100
When the water meters / scales are calibrated, prior to production, at what frequency should
they be checked there after? - Answer✔3 moths
1
Concrete Batch Plant Operator Exam (FDOT)
Questions And Answers| Already Graded A+|
Latest Update.
Stockpiles of aggregate shall be maintained in a well-drained condition in order to: -
Answer✔Minimize Free Water Content
Coarse aggregate stockpiles must be sprinkled for at lest how many hours prior to batch for
FDOT? - Answer✔24
Free moisture of the aggregate means: - Answer✔Moister on the surface of an aggregate that is
above and beyond the absorbed moister in the aggregate.
If the moister test is done other than by the cook-out method, how often shall the other
methods be verified? - Answer✔Each week
For drill shaft concrete, the quantity of cement replaced with fly ash shall be: - Answer✔33 thru
37%
In concrete, which material has a specific gravity of one? - Answer✔Water
What is the air content range for all classes of structural concrete except Class IV Shaft? -
Answer✔1.00 thru 6.00%
When can unmetered water be added to the concrete? - Answer✔Not at all.
Do not allow the total number of revolution at mixing speed to exceed: - Answer✔160
Revolutions
After all materials have been charged into the transit mixer drum, the concrete must be mixed
at how many revolutions at the plant before leaving for the project? - Answer✔70 to 100
When the water meters / scales are calibrated, prior to production, at what frequency should
they be checked there after? - Answer✔3 moths
1
