NV C-5 Concrete Practice Questions - Nevada C-5 Concrete Contractor Examination Exam

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A Las Vegas slab is placed at 2 p.m. with 95°F concrete, 15 mph wind, and a dry subgrade. The specified maximum w/cm is 0.50 and the truck has no withheld water. What is the correct response to a 2-inch slump at the chute?

Add enough water to bring slump to 6 inches so the finishers can keep up Dry-shake cement on the surface to take up bleed water and keep placing Skip curing compound because heat will dry the slab faster Reject or slow the placement, use fogging, sunshades, evaporation reducer, night placement, or ice/retarder on later loads — do not add water that exceeds w/cm

Correct Answer:

Reject or slow the placement, use fogging, sunshades, evaporation reducer, night placement, or ice/retarder on later loads — do not add water that exceeds w/cm

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