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_________ are used to represent activity in a network diagram.

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_________ are used to represent activity in a network diagram.

(a) Circles

(b) Squares

(c) Rectangles

(d) Arrows

This 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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