The critical activity has maximum float minimum float zero float none of these.

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zero float

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4. Optimistic time, most likely time and pessimistic times for the activities of a network in the given figure are written above their arrows. If the contractual obligation time for the project is 75, the latest occurrence time for the event 2, is
Options
A. 20
B. 25
C. 35
D. 15

5. For the network shown in the given figure, the expected time for the activity
Options
A. 1-2 is 4
B. 2-3 is 7
C. 3-4 is 8
D. all the above.

6. If t is the duration of an activity, t₁ is the latest finish possible moment of its preceding activity and t₂ is the earliest start possible moment, the independent float of the activity is
Options
A. (t₁ - t₂) - t
B. t - (t₁ - t₂)
C. (t₁ + t₂) - t
D. t + (t₁ - t₂)

7. While scheduling a project by C.P.M.
Options
A. a project is divided into various activities
B. required time for each activity is established
C. sequence of various activities is made according to their importance
D. net work is drawn by connecting the activities and the events
E. All the above.

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