## NPTEL Project Management Week 5 Assignment Answers 2024

1. If ta, tm and tb are the optimistic time, most likely time and pessimistic time respectively in PERT network then the expected value formulae is

- (ta + 3tm + tb)/6
- (ta + 4tm + tb)/6
- (ta – 4tm + tb)/6
- (ta – 3tm + tb)/6

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2. Note: For Question # 2 to Question # 4 one should use data given which is as follows: The tasks, their respective precedence and their respective times for a job which has these activities, are given as follows

The time to complete the job is:

- 21
- 24
- 26
- 27

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3. The ES and EF for activity C is

- ES = 0 and EF = 2
- ES = 10 and EF = 13
- ES = 5 and EF = 8
- ES = 7 and EF = 10

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4. Float is available for activity/activities

- Activities A and B
- Activity A
- Activity B
- Activities C and D

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5. For the Project network shown, answer the Questions 5 and 6 based on the data provided. What is the critical path?

- A-B-E-H-K
- A-B-E-G-J
- C-D-E-G-I-K
- C-D-E-G-J

Answer :-

6. What is the probability of meeting a desired 26 weeks completion time?

- 0.2159
- 0.2060
- 0.2476
- 0.1867

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7. An important assumption in PERT calculations is:

- Activity times are normally distributed.
- Activity times are independent.
- A and B
- A and C

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8. Which is/are features of PERT/CPM?

- An estimate of how long a project will take.
- A graphical display of project activities.
- An indication of critical activities.
- All the above

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9. In PERT, slack time equals

- EST + t
- LST – EST
- Zero
- EFT – EST

Answer :-

10. Which of the following is one of the assumptions of PERT?

- Total project completion time follows a normal probability distribution.
- Activity times are dependent and correlated.
- Project completion time follows a skewed chi-square distribution.
- Activity times are known with certainty.

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