Network Analysis MCQ with answer and solution

Concept

Project planning follows a systematic logical order. The project is first divided into smaller parts, then connected logically, scheduled with available resources, and finally optimized for time and cost.

Step-by-step solution

1. Understand the logical steps of project planning: Step 1: Work Breakdown Structure (WBS) - Break the entire project into smaller, manageable work packages and activities. Step 2: Network Diagram - Arrange these activities in a logical sequence showing their dependencies and relationships. Step 3: Scheduling with Resource Allocation - Assign durations, dates, labor, materials, and equipment to each activity. Step 4: Time-Cost Study (Crashing/Optimization) - Analyze trade-offs between project duration and direct/indirect costs to find the optimum schedule. 2. Therefore, the correct sequence is Work Breakdown Structure → Network → Scheduling with resource allocation → Time-cost study. Answer: (C) Work Breakdown Structure, Network, Scheduling with resource allocation, Time-cost study

Explanation

Before doing any analysis, we must first break the project down using a Work Breakdown Structure (WBS). Next, we draw the network diagram to show how activities connect. Then, we prepare the schedule and assign resources. Finally, we carry out a time-cost trade-off study to optimize project cost and duration.

Why the other options are wrong

A: Time-cost study cannot be done before creating the network and schedule. B: Starting with time-cost study is incorrect; WBS must come first. D: Time-cost study cannot be performed before the network is prepared and scheduled.

Shortcut

Always look for WBS first. You cannot draw a network or calculate cost without identifying the activities first.

Common mistake

Students often think time-cost analysis comes first because cost estimation starts early, but time-cost trade-off (crashing) can only be done after scheduling.