Construction Planning and Management
If the output of a drag-line for 90° angle of swing at optimum depth of cut is X, then the output for 120° angle of swing at 120 % of optimum depth of cut will be

More than X
Less than X
Equal to X
Any of the above

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Construction Planning and Management
Free float for any activity is defined as the difference between

its latest start time and earliest start time
its latest finish time and earliest start time for its successor activity
its earliest finish time and latest start time for its successor activity
its earliest finish time and earliest start time for its successor activity

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