A field change log shows this condition: an activity has early start day 16 and late start day 29. What total float is shown?
Correct Answer
A) 13 days
The calculation gives 13 days for the stated float. Other choices: the distractors come from omitting an adjustment, using the wrong rate, or applying a rounded shortcut for calculation item 232.
Why This Is the Correct Answer
The calculation gives 13 days for the stated float.
Why the Other Options Are Wrong
Option B: 12 days
float, choice a: 12 days is wrong because 12 days uses the wrong side of the schedule subtraction or omits one duration component.
Option C: 14 days
float, choice b: 14 days uses the wrong side of the schedule subtraction or omits one duration component.
Option D: 16 days
float, choice d: 16 days is wrong because 16 days uses the wrong side of the schedule subtraction or omits one duration component.
Memory Technique
Picture a redline labeled float: finish every operation before accepting 13 days.
Reference Hint
Open Construction Jobsite Management, 5th Ed.; use the index entry or section for "float calculation" to confirm that The calculation gives 13 days for the stated float.
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