Covers Lessons 1–6: project networks, precedence tables, AOA diagrams, forward and backward scans, critical path, float, crashing and resource allocation.
Multiple Choice
10 questions drawn from Lessons 1–6
Short Answer
1. A project has activities: A(4,-), B(3,A), C(2,A), D(5,B), E(3,C), F(2,D,E). (a) Draw the AOA network. (b) Perform forward and backward scans. (c) Find the critical path and project duration. (d) Calculate float for each non-critical activity. 4 MARKS
2. (a) Explain why a dummy activity has duration 0. (b) A critical activity can be crashed from 8 days to 5 days at a cost of $1500. A non-critical activity with float 4 days can be crashed from 6 days to 4 days at $800. The project must finish 2 days earlier. Which activities should be crashed and what is the minimum extra cost? (c) After crashing, why must you recalculate the critical path? 3 MARKS
Q1 (4 marks): (a) Network [0.5]. (b) Scans [1.5]. (c) Path and duration [1]. (d) Floats [1].
Q2 (3 marks): (a) Explanation [1]. (b) Choice and cost [1]. (c) Reason [1].
Tick when you have finished all questions and checked your answers.