Network Analysis MCQ with answer and solution

If the total project duration is 120 days, and the project manager performs a "crash" on activity 1, reducing it from 15 days to 10 days, then the effect is

• AThe project duration decreases by 5 daysCorrect
• BThe total float for the project increases
• CThe project schedule becomes more relaxed
• DThe project manager reduces costs, without affecting time

Solution

Concept

Effect of crashing

Step-by-step solution

1. Crashing a critical activity from 15 to 10 days saves 5 days if it is on the critical path.

Explanation

Shortening an activity reduces the project duration by the saving (when critical).

Why the other options are wrong

Crashing does not increase float or reduce cost.

Shortcut

Crash saves the duration.