Question

In large projects, economizing of dummy activities reduces?​

Answer 1

Answer:

A dummy activity is intended to show a path of action in a project activity diagram and is employed when a logical relationship between two activities cannot be linked by showing the use of arrows linking one activity to another

Answer 2

Explanation:

A dummy activity is an activity added to a project schedule as a placeholder. ... A dummy activity is intended to show a path of action in a project activity diagram and is employed when a logical relationship between two activities cannot be linked by showing the use of arrows linking one activity to another.

Dummy activities often have a zero completion time and are used to represent precedence relationships that cannot be easily (if at all) represented using the actual activities involved in the project. By convention dummies are always shown as dotted arcs in network diagrams.