Concrete Batch Plant Operator Exam (FDOT) || with A+ Guaranteed Solutions.

Stockpiles of aggregate shall be maintained in a well-drained condition in order to: correct answers Minimize Free Water Content Coarse aggregate stockpiles must be sprinkled for at lest how many hours prior to batch for FDOT? correct answers 24 Free moisture of the aggregate means: correct answers 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? correct answers Each week For drill shaft concrete, the quantity of cement replaced with fly ash shall be: correct answers 33 thru 37% In concrete, which material has a specific gravity of one? correct answers Water What is the air content range for all classes of structural concrete except Class IV Shaft? correct answers 1.00 thru 6.00% When can unmetered water be added to the concrete? correct answers Not at all. Do not allow the total number of revolution at mixing speed to exceed: correct answers 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? correct answers 70 to 100 When the water meters / scales are calibrated, prior to production, at what frequency should they be checked there after? correct answers 3 moths To what accuracy should the scales for weighing cement , pozzolan, slag and aggregates at the plant be maintained correct answers 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: correct answers 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. correct answers Is not allowed. Who places the orders for concrete with the producer? correct answers The contractor