Construction Planning and Management
Consider the following features/factors: 1. Projects are of the non-repetitive type 2. Time required need not be known 3. Time required is known precisely 4. Events have been established for planning 5. Emphasis is given to activities of project PERT is preferred for planning because of

1, 2 and 4
1, 2 and 5
3, 4 and 5
1, 3 and 4

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Construction Planning and Management
If the optimistic time, most likely time and pessimistic time for activity A are 4, 6 and 8 respectively and for activity B are 5, 5.5 and 9 respectively, then

expected time of activity A is greater than the expected time of activity B
None of these
expected time of activity B is greater than the expected time of activity A
expected time of both activities A and B are same

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

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

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