Circle/tick the right answer from the answers given below. (1×6 = 6) 1. Which of

Question

Circle/tick the right answer from the answers given below.                                    (1×6 = 6)

1.      Which of the following questions can be answered by PERT?

a.       When is the entire project expected to be completed?

b.      What is the probability that the project will be completed by a specific date?

c.       What are the critical activities?

d.      All of the above

2.      The critical path of a network is the

a.       path with zero slack.

b.      path with the least variance.

c.       path with the most activities.

d.      path with the largest variance.

3- Given an activity's optimistic, most likely, and pessimistic time estimates of 4, 7, and 16 days respectively, then the PERT expected activity time and variance for this activity will be respectively:

a. 8 and 4

b. 4 and 8

c. 4 and 2

d. 8 and 2

4. If the simulation is repeated thousand time, it is much more likely that

a. average simulation demand will be two times the expected demand.

b. average simulation demand will nearly the same as the expected demand.

c. average simulation demand will be half of the expected demand.

d. all the above.

5 - A meteorologist was simulating the number of days that rain would occur in a month. The random number interval from 01 to 30 was used to indicate that rain occurred on a particular day, and the interval 31–00 indicated that rain did not occur. What is the probability that rain did occur?

a. 0.30

b. 0.31

c. 1.00

d. 0.70

6- In assigning random numbers in a Monte Carlo simulation,

a. it is important to develop a cumulative probability distribution.

b. it is important to use a normal distribution for all variables simulated.

c. it is not important to assign probabilities to an exact range of random number intervals.

d. All of the above

Explanation / Answer

1) all of the above

2) path with zero slack

6) it is important to develop a cumulative probability distribution.

5) 0.30

4) the average simulation demand is will nearly the same as the expected demand.

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