NCCER Concrete Finishing Practice Questions - NCCER Concrete Finishing Concrete Finisher Exam

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A ready-mix truck arrives with a 7-inch slump for a slab specified at 4 inches +/- 1 inch. The driver offers to add water at the chute. What is the correct action?

Accept the water addition as long as it is under 5 gallons Reject the load — adding water cannot bring an over-slumped mix back into specification Add a high-range water reducer (superplasticizer) at the chute Add water yourself at the surface during floating

Correct Answer:

Reject the load — adding water cannot bring an over-slumped mix back into specification

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