A Florida superintendent must choose the proper water-control method because the controlling field constraint is that groundwater must be lowered before footing work starts. Which option is best?
Correct Answer
B) Select wellpoints or sump pumping as designed
wellpoints or sump pumping as designed best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why This Is the Correct Answer
wellpoints or sump pumping as designed best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why the Other Options Are Wrong
Option A: Select eductor system for low-permeability soil
Select eductor system for low-permeability soil addresses a neighboring field issue, but not the condition or method control required for temporary dewatering.
Option C: Select cutoff trench or cutoff wall
Select cutoff trench or cutoff wall addresses a neighboring field issue, but not the condition or method control required for temporary dewatering.
Option D: Select gravel working mat after water control
Select gravel working mat after water control addresses a neighboring field issue, but not the condition or method control required for temporary dewatering.
Memory Technique
Temporary Dewatering method for Foreman Selecting: condition first, tool second.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Earthwork methods; excavation water control and temporary dewatering; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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