Activity | ES | EF | LS | LF | Slack |
A | 0 | 7 | 0 | 7 | 0 |
B | 7 | 13 | 7 | 13 | 0 |
C | 7 | 10 | 10 | 13 | 3 |
D | 13 | 18 | 13 | 18 | 0 |
E | 18 | 25 | 18 | 25 | 0 |
F | 18 | 22 | 21 | 25 | 3 |
G | 25 | 29 | 25 | 29 | 0 |
Critical path is ABDEG with duration 29.
(i) Critical path is ABDEG. Option 3 is right.
(ii) Project duration is 29 weeks
(iii) C and F have slack of 3 weeks. Option 2 is right.
(iv)
Activity | Slope | Max crash |
A | 1500 | 1 |
B | 1800 | 2 |
C | 1750 | 1 |
D | 2450 | 1 |
E | 650 | 1 |
F | 3500 | 1 |
G | 2350 | 1 |
The cheapest activities on CP are E and A which can be crased for one week each. Option 3 is right.
Total cost of crashing for 2 weeks is 2150. Critical path has not changed as the non critical activities have a slack of 3, which is less than crash duration.
Problem 5-18 The following CPM network has estimates of the normal time in weeks listed for...
Normal Time Crash Time Normal with Activity (weeks) (weeks) Cost Crashing Immediate Predecessor(s) $1,400 A 3 2 $2,050 $2,800 B 2 1 $2,100 1 1 $350 $350 7 $1,400 $1,700 A 6 3 $900 $1,200 $5,000 $2,000 F 2 $4,000 $1,500 C 4 G 2 D, E weeks a) Based on the given information regarding the activities for the project, the project completion date b) To reduce the duration of the project to 10 weeks at the least cost, the...
The table below defines the activities and the normal time duration for each activities within a small project. You can decrease (crash) the durations at an additional expense. Table 1 summarizes the time-cost information for the activities to complete the project. Table 1: The time-cost information for the activities Activity Normal Completion Time (weeks) Immediate Predecessor Crash Time (weeks) Normal cost for activities Crash cost for activities/week A 2 - 1 1200 400 B 3 - 1 1400 500 C...
Problem 5-7 The following activities are part of a project to be scheduled using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A — 7 B A 6 C A 2 D C 4 E B D 3 F D 4 G E F 6 b. What is the critical path? A-B-D-F-G A-C-D-E-G A-C-D-F-G A-B-E-G c. How many weeks will it take to complete the project? Number of weeks d. How much slack does activity B have? Slack of activity B week(s)
chedule the following activities using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A — 5 B A 3 C A 4 D B 6 E C D 8 F D 2 G F 4 H E G 3 b. What is the critical path? A-B-D-E-H A-B-D-F-G-H A-C-E-F-G-H A-C-E-H c. How many weeks will it take to complete the project? d. Which activities have slack, and how much? B 1 week H 2 weeks F 4 weeks. C 5 weeks F 2...
Problem 5-7 The following activities are part of a project to be scheduled using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) А 7 B 6 2 3 B.D D b. What is the critical path? Оооо A-C-D-E-G A-B-D-F-G A-B-E-G O A-C-D-F-G c. How many weeks will it take to complete the project? Number of weeks d. How much slack does activity B have? Slack of activity B week(s)
QUESTION 9 Consider the following project; for which activities is it possible that the slack can be greater than zero? Activity Immediate Predecessors B, E a. Only activities B or E could have slack, but they could not both have slack. Ob. Only activities B or C could have slack, but they could not both have slack. Oc. It is possible for any or all activities in this project to have slack. Od. It is possible for either all three...
Lecture Exercise #13 Project Crashing Time (weeks) Cost Activity Predecessori s) Normal Crash Normal Crash A None 3 2 1000 1600 B None 2 1 2000 2700 C None 1 1 300 300 D A 7 3 1300 1600 E B 6 3 850 1000 F с 2 1 4000 5000 D, E 2000 G 4 2 1500 What's the normal project completion time? Identify the critical path If you'd like to shorten the project by one week, which activity...
The following activities are part of a project to be scheduled using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A — 3 B A 9 C A 5 D C 2 E B D 7 F D 6 G E F 4 b. What is the critical path? A-B-D-F-G A-B-E-G A-C-D-F-G A-C-D-E-G c. How many weeks will it take to complete the project? Number of weeks d. How much slack does activity B have? Slack of activity B week(s)
Schedule the following activities using CPM: Table 2 ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A — 8 B A 4 C A 4 D C 8 E B, D 2 F D 6 G E, F 2 Question 25 (1 point) What is the critical path? (Show your diagram and calculations) Question 25 options: A-C-D-E-G A-B-E-G A-B-D-E-G A-C-D-F-G A-B-D-F-G How many weeks will it take to complete the project? What is B slack time?
Paragraph 2 Styles . 4 5 6 The "SUPER" project has the following activity lists, normal time and cost and crash time and cost. Predecessor Normal Time Crash Time Normal Cost Crash Cost Activity Activity (Weeks) (Weeks) A 4 3 8,000 9,000 B А 5 3 16,000 20,000 C A 4 3 12,000 14,000 D B 6 5 34,000 35,000 E 6 3 42,000 45,000 F D 5 4 16,000 16,500 E 7 5 66,000 72,000 9 H G 4...