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GATE CE 2022: Building Materials & Construction Management Quiz#6

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Question 1

Which one of the following statements is not correct?

Question 2

If the expected time for completion of a project is 10 days with a standard deviation of 2 days, the expected time of completion of the project with 99.9% probability is

Question 3

Which of the following activity, the slack is zero? (time durations are in days).

Question 4

For the given network, after 15 days the updated status of the projects was given as:
Activities 1-2, 2-5, and 1-3 are completed.
Activity 2-4 has 5 days remaining.
Activity 5-8 has 3 days remaining.
Activity 5-6 has 2 days remaining.
Activity 3-6 has 6 days remaining.

The completion time of the project is

Question 5

The time estimates obtained from 4 contractors P, Q, R and S for executing a job are as below:

Which of them is more certain about completing the job in time?

Question 6

The line of a PERT network is shown below with a, m, b durations. What is the probable range of the total duration?

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