Service workshop has four jobs on hand to be processed. The date and processing time for each of the jobs are given below

Considering mean lateness and mean flow time, evaluate the shortest-time rule and least-slack rule and recommend the desirable rule.

In the construction of networks, dummy activities are introduced in order to :

The process of shot peening increases the fatigue life of steel springs mainly because it results in

When $$1.0\% $$ plain carbon steel is slowly cooled from the molten state to $$740C,$$ the resulting structure will contain