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GATE 2022 CE (CE2) – Question 53

Construction Management · Project planning and scheduling: AOA and AON, PERT and CPM · 2 marks · Numerical answer

Activities: A (10 days, none); B (12, none); C (5, after A); D (14, after B); E (10, after B and C). Find total float of E (integer days).

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Correct answer: 1

Explanation

Forward pass: A finishes at 10, B at 12, C at 15, D at 26. E starts at max(12,15)=15 and finishes at 25. The project completes at 26.

E can finish at day 26 without delaying the project, so its total float is 26−25=**1 day**.