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_________ are used to represent activity in a network diagram.(a) Circles(b) Squares(c) Rectangles(d) ArrowsThis question was posed to me during an internship interview.Enquiry is from PERT and CPM topic in section Building Plans, PERT and CPM of Construction & Building Materials

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Right ANSWER is (d) Arrows

Explanation: A network is a FLOW diagram that consists of events and activities which are CONNECTED sequentially and logically. Arrows are used to REPRESENT activity in a network diagram. Events are generally represented by circles.



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