Concrete Batch Plant Operator Exam (FDOT) Questions and Answers 2024
Course
Concrete Batch Plant Operator
Institution
Concrete Batch Plant Operator
Concrete Batch Plant Operator Exam (FDOT)
Questions and Answers 2024
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? -Answ...
Concrete Batch Plant Operator Exam (FDOT)
Questions and Answers 2024
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
To what accuracy should the scales for weighing cement , pozzolan, slag and
aggregates at the plant be maintained -Answer-0.5% of maximum load normally
handled
For concrete containing a water-reducing retarding admixture, in an agitator truck, the
maximum time for depositing the concrete shall not exceed: -Answer-90 minutes
If a load of concrete has been rejected due to excessive slump, the concrete may
remain in the transporting vehicle to reduce the slump. -Answer-Is not allowed.
Who places the orders for concrete with the producer? -Answer-The contractor
The minimum normal sampling frequency for the chloride content of structural concrete
is: -Answer-1 per design mix in use from the first day of production and every 30
calendar days or less thereafter.
In what moister condition are the aggregates on the approved concrete mix designs? -
Answer-SSD condition
The specific gravity of an aggregate is the ratio of its unit weight to the weight of an
equal absolute volume of: -Answer-Water
What is the weight of a bag of Portland cement in the USA? -Answer-94 lbs
What is the maximum concrete temperature allowed when using a hot weather design
mix? -Answer-100 degrees F
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller KatelynWhitman. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
