Question: Activities, predecessors and duration for a School Building Project A IB A 10 D 5 E 5 Activity Description Immediate Duration predecessor (days) Clear Site

Activities, predecessors and duration for a
Activities, predecessors and duration for a School Building Project A IB A 10 D 5 E 5 Activity Description Immediate Duration predecessor (days) Clear Site and mobilize labour and equipment None 5 Excavate foundation 15 Procure materials (sand, cement, chippings etc.) A Pour foundation concrete B, C Mould sandcrete blocks (substructure) Construct substructure block work D, E 15 Construct superstructure block work FH Make doors and window frames 10 Procure and preserve roof timber 10 Roofing, plastering and painting G, 25 Fabricate roof trusses 15 Mould sandcrete blocks (superstructure) 10 F G | 30 J IK 1. Draw the network diagram. 2. What is the critical path of the above project? 3. Calculate the total and free floats for the activities

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