Mechanical Engineering - Industrial Engineering and Production Management - Discussion
Discussion Forum : Industrial Engineering and Production Management - Section 1 (Q.No. 15)
15.
In a network shown in the below figure, the critical path is along
Discussion:
32 comments Page 1 of 4.
AMAL said:
10 years ago
Option [B] is the correct answer. The dummy activities are provided to show precedence before any activity. Here it is showing that after 3 we can go to point 5.
And the critical path is the one taking the longest time in cycle. There is nothing like we cannot consider dummy in critical path. 1-2-3-5-6-7-8-9 is taking 24 units that's why it will be critical path.
And the critical path is the one taking the longest time in cycle. There is nothing like we cannot consider dummy in critical path. 1-2-3-5-6-7-8-9 is taking 24 units that's why it will be critical path.
Janardhan reddy.G said:
10 years ago
1-2-3-4-8-9 = 21.
1-2-3-5-6-7-8-9 = 24.
1-2-5-6-7-8-9 = 22.
By comparing the critical path from the above, it is concluded that option B is correct. That is critical path is given by 1-2-3-5-6-7-8-9.
Whenever if we want to know the critical path we need to consider dummy activities also for the completion of project.
1-2-3-5-6-7-8-9 = 24.
1-2-5-6-7-8-9 = 22.
By comparing the critical path from the above, it is concluded that option B is correct. That is critical path is given by 1-2-3-5-6-7-8-9.
Whenever if we want to know the critical path we need to consider dummy activities also for the completion of project.
ONOSETALE said:
8 years ago
@ALL.
As an Industrial engineer, one of the function in a project is to obtain an optimal solution. However, I would suggest those against option B to study the algorithm of network diagram as regarding selecting the critical path(s).
As an Industrial engineer, one of the function in a project is to obtain an optimal solution. However, I would suggest those against option B to study the algorithm of network diagram as regarding selecting the critical path(s).
Anand said:
7 years ago
CRITICAL Path:
A critical path consumes maximum resources. It is the longest path and consumes maximum time.
So the order of the network is 1-2-3-5-6-7-8-9.
Option B is correct.
A critical path consumes maximum resources. It is the longest path and consumes maximum time.
So the order of the network is 1-2-3-5-6-7-8-9.
Option B is correct.
Anomy said:
9 years ago
Critical path.
The sequence of stages determining the minimum time needed for an operation, especially when analyzed on a computer for a large organization.
The sequence of stages determining the minimum time needed for an operation, especially when analyzed on a computer for a large organization.
Kannan said:
8 years ago
Option D is the correct answer. The dummy activity doesn't consume any resource or time. So we don't consider dummy activity while choosing a critical path.
Zeeshan_Pak said:
5 years ago
A dummy activity can only become critical when its EST is the same as its LFT.
That's why D2 is considered critical and D1 is not.
So, Option B is right.
That's why D2 is considered critical and D1 is not.
So, Option B is right.
Aniket said:
4 years ago
A dummy activity can be either critical or non-critical. It becomes a critical activity when the earlier start time and the latest finish time are equal.
Kuldip said:
1 decade ago
Critical path is one which takes more time to complete. So 1-2-5-6-7-8-9 is taking 22 days and other path 21 day so 1256789 should be the critical path.
Samuel said:
7 years ago
Exactly @Neeraj. But according to the definition, critical path is the longest path and consumes maximum time. So, they are contradicting each other.
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