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Your team has prepared a CPM schedule for your review. You notice that one node has six inputs (including two dummy activities) and four outputs?

 (which include one dummy activity). Select the correct statement from the following:

A. This is invalid because nodes cannot have both dummy inputs and dummy outputs.

B. This is invalid because a node can have a maximum of one dummy input representation if the logic is correct.

C. This is invalid because a maximum of two inputs and two outputs are allowed using the critical path method.

D. This is a invalid because the number of outputs must equal the number of inputs.

E. This is a valid representation if the logic is correct.

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Question added by Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.
Date Posted: 2017/05/12
Zaferullah Sharief, PMP®
by Zaferullah Sharief, PMP® , Project Manager , Huawei Technologies

Option E is the correct answer.

Aneesh Shandilya
by Aneesh Shandilya , Manager/ Lead Electrical , Orpic

E. This is a valid representation if the logic is correct. The planning can be validated by creating a correct logic.

B. This is invalid because a node can have a maximum of one dummy input representation if the logic is correct.

ZULFIQAR ALI
by ZULFIQAR ALI , Planning/ Project Control Manager , King Abdullah University Of Science And Technology

In CPM, there can be dummy activities. My answer is E.

E. This is a valid representation if the logic is correct.

Muhammad Farooq
by Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.

In my E. This is a valid representation if the logic is correct.

Mohamed Kamal
by Mohamed Kamal , Cost Control Manager , China State Construction Engineering Corporation Ltd. (Egypt)

the answer is (E) if the logic is correct there is no problem

hisham abu dagga
by hisham abu dagga , Project Manager / مدير مشاريع , مؤسسة عبدالكريم العواض للمقاولات

________Thank you for the invitation

Agreed with Option E_________

Krishna   KHASANIS  PMP
by Krishna KHASANIS PMP , Project Manager-Electrical , Larsen & Toubro Ltd, P T & D (International)

I am not sure of the answer but none the less thanks for the invite. 

Binil Paul
by Binil Paul , Senior Planning Engineer , Keo International Consultants - Qatar

option E ............................................

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