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Which one of the following statements is not correct?
- a)PERT is activity oriented and CPM is event oriented
- b)In PERT, three time estimates are made, whereas in CPM only one time estimate is made (C) In PERT slack is calculated whereas in CPM floats are calculated
- c)Both PERT and CPM are used for project management
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Which one of the following statements is not correct?a) PERT is activ...
(A) PERT → Event oriented CPM → Activity oriented
(B) PERT → 3 time estimates are made
to = optimistic time
tm = most likely time
tP = pessimistic time
CPM → only one time estimate
(C) In PERT slack is calculated, CPM floats calculated
(D) Both PERT and CPM are used for project management
Most Upvoted Answer
Which one of the following statements is not correct?a) PERT is activ...
(A) PERT → Event oriented CPM → Activity oriented
(B) PERT → 3 time estimates are made
to = optimistic time
tm = most likely time
tP = pessimistic time
CPM → only one time estimate
(C) In PERT slack is calculated, CPM floats calculated
(D) Both PERT and CPM are used for project management
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Community Answer
Which one of the following statements is not correct?a) PERT is activ...
Explanation:
The correct answer is option 'A': PERT is activity oriented and CPM is event oriented.
PERT and CPM:
- PERT (Program Evaluation and Review Technique) and CPM (Critical Path Method) are two project management techniques used to plan, schedule, and control projects.
- Both techniques are widely used in various industries, including mechanical engineering.
Differences between PERT and CPM:
1. Approach:
- PERT is activity oriented, which means it focuses on the activities or tasks required to complete a project.
- CPM is event oriented, which means it focuses on the events or milestones that mark the completion of specific project activities.
2. Time Estimates:
- In PERT, three time estimates are made for each activity: optimistic time, pessimistic time, and most likely time.
- In CPM, only one time estimate is made for each activity, which is the most likely time.
3. Calculation of Slack and Float:
- PERT calculates slack for each activity, which is the amount of time an activity can be delayed without delaying the project.
- CPM calculates float for each activity, which is the amount of time an activity can be delayed without delaying the project's critical path (the longest path of dependent activities).
4. Use of Probabilistic Time Estimates:
- PERT uses probabilistic time estimates to account for uncertainty and variability in activity durations.
- CPM typically uses deterministic time estimates, assuming fixed activity durations.
5. Emphasis on Time vs. Cost:
- PERT places more emphasis on time considerations and is often used for projects with uncertain or variable durations.
- CPM places more emphasis on cost considerations and is often used for projects with fixed durations.
Conclusion:
Based on the above differences, it can be concluded that option 'A' is not correct. PERT is activity oriented, while CPM is event oriented. Both PERT and CPM are used for project management, but they have distinct approaches, time estimation methods, and calculation of slack/float.
The correct answer is option 'A': PERT is activity oriented and CPM is event oriented.
PERT and CPM:
- PERT (Program Evaluation and Review Technique) and CPM (Critical Path Method) are two project management techniques used to plan, schedule, and control projects.
- Both techniques are widely used in various industries, including mechanical engineering.
Differences between PERT and CPM:
1. Approach:
- PERT is activity oriented, which means it focuses on the activities or tasks required to complete a project.
- CPM is event oriented, which means it focuses on the events or milestones that mark the completion of specific project activities.
2. Time Estimates:
- In PERT, three time estimates are made for each activity: optimistic time, pessimistic time, and most likely time.
- In CPM, only one time estimate is made for each activity, which is the most likely time.
3. Calculation of Slack and Float:
- PERT calculates slack for each activity, which is the amount of time an activity can be delayed without delaying the project.
- CPM calculates float for each activity, which is the amount of time an activity can be delayed without delaying the project's critical path (the longest path of dependent activities).
4. Use of Probabilistic Time Estimates:
- PERT uses probabilistic time estimates to account for uncertainty and variability in activity durations.
- CPM typically uses deterministic time estimates, assuming fixed activity durations.
5. Emphasis on Time vs. Cost:
- PERT places more emphasis on time considerations and is often used for projects with uncertain or variable durations.
- CPM places more emphasis on cost considerations and is often used for projects with fixed durations.
Conclusion:
Based on the above differences, it can be concluded that option 'A' is not correct. PERT is activity oriented, while CPM is event oriented. Both PERT and CPM are used for project management, but they have distinct approaches, time estimation methods, and calculation of slack/float.
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Which one of the following statements is not correct?a) PERT is activity oriented and CPM is event orientedb) In PERT, three time estimates are made, whereas in CPM only one time estimate is made (C) In PERT slack is calculated whereas in CPM floats are calculatedc) Both PERT and CPM are used for project managementCorrect answer is option 'A'. Can you explain this answer?
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Which one of the following statements is not correct?a) PERT is activity oriented and CPM is event orientedb) In PERT, three time estimates are made, whereas in CPM only one time estimate is made (C) In PERT slack is calculated whereas in CPM floats are calculatedc) Both PERT and CPM are used for project managementCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following statements is not correct?a) PERT is activity oriented and CPM is event orientedb) In PERT, three time estimates are made, whereas in CPM only one time estimate is made (C) In PERT slack is calculated whereas in CPM floats are calculatedc) Both PERT and CPM are used for project managementCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not correct?a) PERT is activity oriented and CPM is event orientedb) In PERT, three time estimates are made, whereas in CPM only one time estimate is made (C) In PERT slack is calculated whereas in CPM floats are calculatedc) Both PERT and CPM are used for project managementCorrect answer is option 'A'. Can you explain this answer?.
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