For the network shown in the given figure, the expected time for the activity 1-

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Question
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.

Correct Answer

all the above.

Explanation

Expected time = (Pessimistic value + 4*most likely value + Optimistic value)/6.

1-2 is 4.

2-3 is 7.

3-4 is 8.

Construction Management problems

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1. Pick up the incorrect statement from the following:
Options
A. The difference between the earliest start time and latest finish time of any activity, is the maximum time available for the activity
B. The difference between the maximum time available for the job and actual time it consumes, is called total float
C. The difference between the latest start time and earliest start time of an activity, is called total float
D. The difference between the earliest finish time of an activity and the earliest start time of its successor activity, is called free float of the activity
E. None of these.

2. The final selection of a construction site, is done by
Options
A. departmental representative or user
B. local civil authority representative
C. representative of engineer authority
D. representative of administration
E. all the above.

5. A goiden rule for the procurement of construction stones, suggests
Options
A. 100% at the site
B. 67% at the site and 33% under procurement
C. 50% at the site and 50% under procurement
D. 33% at the site and 67% under procurement
E. none of these.

6. 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

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