Please give answer for all these objective questions, no need details explaination.

29) 29) The term network logic means: A) Tasks are not performed unless the customer issues a specific request to perform the work. B) Tasks must either precede or follow other tasks in project planning and management. C) Tasks cannot be performed unless the project manager issues a specific command to perform the work. D) Prior project planning removes the need for any rush so that tasks can be performed in a methodical fashion. 30) Which of these statements about this network is BEST? 30) Activity A Activity B Activity D Activity C A) Activities B and Care serial activities. C) Activity D is a merge activity. B) Activities A and Care serial activities, D) Activities A and B are serial activities. Activity Activity C Activity D Activity B Activity E 31) 31) Based on the activity network pictured, what is the BEST statement? A) Before starting Activity E, Activity A and Activity B need to be completed. B) Before starting Activity C, Activity A and Activity B must be completed. C) Before starting Activity D. Activity A and Activity B need to be completed. D) Before starting Activity C, Activity A and Activity D must be completed, 32) 32) There's an old saying, "The job is not finished until the paperwork is done." From an activity network standpoint, this does not necessarily mean that the paperwork can't begin until the last non-paperwork activity is completed. It might be possible to work on some paperwork as early activities are completed. In order to depict this in an activity network: A) Subroutines could be added. B) Laddering could be used to redraw the network. C) Hammock activities could be drawn. D) Shortcuts can be added to the network. 6 B A 18 6 9 11 3 6 Hammock 33) 33) Activities C, D, and E in the project represented by the network are to be hammocked. What is the activity length of the hammock activity? A) 11 B) 13 C) 16 D) 20 34) 34) A gentleman farmer maniacally works on academic projects to raise funds for his true passion, farming. He has identified seven tasks and developed three time estimates (all in days) of the next big project on the farm, replacing the fence at the comedy pasture. Tasks, precedence requirements, and time estimates are shown in the table. What is the standard deviation of the project's critical path? Predecessor -- Activity Corner Posts String Line Dig Holes Plant Posts Weld Top Bar Paint Tack Wire Optimistic Most Likely Pessimistic time time time 4 6 17 s 19 10 12 14 11 14 17 8 11 14 19 11 13 19 12 16 Corner Posts String Line String Line Dig Holes, Plant Posts Weld Top Bar A) 1.25 days B) 1.75 days C) 1.33 days D) 1.56 days 35) 35) 3 A G 5 11 H 9 Use the network diagram and activity lengths in the nodes to determine the slack time for activity D. B) 2 C) 1 D) 0 A) 3 36) 36) Activities A and B have a finish to finish relationship and early start and finish times as shown. What is the result of incorporating a 4-day lag between activities C and B? 20 A 27 7 22 C 26 24 B 27 27 D 39 4 3 12 A) The early start time for A increases to 24. B) The early finish time for B increases to 31. C) The early start time for D falls to 23. D) The early finish for A increases to 31. 8