Operations Management Practice Midterm
QM 300
Midterm
Part I 1. Project management: a) Is the planning, scheduling and controlling of project tasks to meet objectives. b) Is used primarily in construction and public works. c) Requires less communication than ongoing process management. d) Focuses on well-understood, unambiguous tasks and relationships. Using the following project, with activity times estimate in days and a critical path of CH-J-K, to answer the next 3 questions: Activity A B C D E F G H I J K Immediate Predecessor A A A, B C C E, F, G H D, I, J Optimistic 2 4 6 5 3 8 4 3 5 12 1 Most Likely Pessimistic 5 3 7 12 4 9 6 7 7 13 3 6 7 10 14 5 12 8 8 12 14 4
2. The expected project completion time is: a) 75 days b) 30 days c) 29.333 days d) 29.666 days 3. The variance of project completion line is: a) 7.53 b) 1.4999 c) 1.2247 d) 2.7441 4. The probability that the project will actually take more time to complete than the E(t) is : a) Zero b) Equal to P(z > 0) c) Less than 50% d) 50% e) Insufficient information to determine.
Page 1 of 11
QM 300
Midterm
5. The earliest start time for an activity leaving a node is a) The same as its earliest finish time b) The sum of the earliest finish time and the expected activity time c) The smallest of the earliest finish times for all activities entering the node d) The largest of the earliest finish times for all activities entering the node. 6. Activity R is a PERT/CPM network has an optimistic time 5, most likely time 6, and pessimistic time 10. What are the expected time and variance for activity R? a) 6, 6 b) 6.33, 1 c) 3.33, 6 d) 24, 14 7. The critical path is a) Is any path that goes from the starting node to the completion node. b) Is a combination of all paths. c) Is the shortest path. d) Is the longest path. 8. Activities following a node a) Can begin as soon as any activity preceding the note has been completed. b) Have a start time equal to the largest of the earliest finish time for all activities entering the node. c) Both
Midterm
Part I 1. Project management: a) Is the planning, scheduling and controlling of project tasks to meet objectives. b) Is used primarily in construction and public works. c) Requires less communication than ongoing process management. d) Focuses on well-understood, unambiguous tasks and relationships. Using the following project, with activity times estimate in days and a critical path of CH-J-K, to answer the next 3 questions: Activity A B C D E F G H I J K Immediate Predecessor A A A, B C C E, F, G H D, I, J Optimistic 2 4 6 5 3 8 4 3 5 12 1 Most Likely Pessimistic 5 3 7 12 4 9 6 7 7 13 3 6 7 10 14 5 12 8 8 12 14 4
2. The expected project completion time is: a) 75 days b) 30 days c) 29.333 days d) 29.666 days 3. The variance of project completion line is: a) 7.53 b) 1.4999 c) 1.2247 d) 2.7441 4. The probability that the project will actually take more time to complete than the E(t) is : a) Zero b) Equal to P(z > 0) c) Less than 50% d) 50% e) Insufficient information to determine.
Page 1 of 11
QM 300
Midterm
5. The earliest start time for an activity leaving a node is a) The same as its earliest finish time b) The sum of the earliest finish time and the expected activity time c) The smallest of the earliest finish times for all activities entering the node d) The largest of the earliest finish times for all activities entering the node. 6. Activity R is a PERT/CPM network has an optimistic time 5, most likely time 6, and pessimistic time 10. What are the expected time and variance for activity R? a) 6, 6 b) 6.33, 1 c) 3.33, 6 d) 24, 14 7. The critical path is a) Is any path that goes from the starting node to the completion node. b) Is a combination of all paths. c) Is the shortest path. d) Is the longest path. 8. Activities following a node a) Can begin as soon as any activity preceding the note has been completed. b) Have a start time equal to the largest of the earliest finish time for all activities entering the node. c) Both