# Unit 8 Quiz Questions 2016

August 31, 2017

uestion
4. Question : Which of the following statement about project crashing is false?
Student Answer: The crash cost is greater than or equal to the normal cost of an activity.
The crash time is less than or equal to the normal time to complete an activity.
Reducing the time of an activity on the critical path automatically reduces total project duration.
It may not be possible to crash a particular activity.

Question 5. Question : According to the table below, there are five activities in a PERT project. Which activities are on the critical path?
Activity Predecessor Optimistic Likely Pessimistic Deviation Variance
A — 4 5 6 0.333 0.111
B — 12 16 18 1.000 1.000
C A 2 8 14 2.000 4.000
D A 5 5 5 0.000 0.000
E B, C 6 7 8 0.333 0.111

A-C-E
B-D
B-E

Question 8. Question : The project described by: has a critical path of length of ________.
Activity Immediate Predecessor Time (days)
A — 10
B A 4
C A 6
D B, C 7
E C 5

14 days
23 days
32 days

Question 11. Question : Given the following small project, the critical path is ________ days.
Activity Immediate Predecessor Time (days)
A — 10
B – 4
C A, B 6

14
16
20

Question 12. Question : Given the following small project, the critical path is ________ days.
Activity Immediate Predecessor Time (days)
A — 8
B A 4
C – 10

10
12
22

Question 14. Question : Which of the following is not a concept associated with CPM?
probability
normal cost
crash cost

Question 18. Question : The project described by: has a critical path of length of ________.

Activity Immediate Predecessor Time (days)
A — 6
B A 2
C — 8
D B, C 5
E D 7

20 days
17 days
18 days

Question 20. Question : Using the data in the table below, what is the minimum possible time required for completing the project? All times are in weeks.

Activity Immediate Predecessor Time (days)
A — 4
B — 3
C A 2
D B 7
E C, D 4
F B 5
G E, F 4