Activity R on a CPM Network Has Predecessors M and N,and

question 103

Multiple Choice

Activity R on a CPM network has predecessors M and N,and has successor S.R has duration 5.N's late finish is 18,while M's is 20.S's late start is 14.Which of the following is definitely true?

• A)R is critical and has zero slack.
• B)R has no slack but is not critical.
• C)The set of times cannot all be possible.
• D)N is a critical activity.
• E)S is a critical activity.

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Definitions:

Diameter

Straight line extending across the center of a circle from circumference to circumference. The diameter of a circle is two times its radius.

Potential Difference

The difference in electric potential between two points, which drives the flow of electric current in a circuit.

Conventional Theory

In electrical engineering, it refers to the theory that assumes current flows from the positive to the negative terminal, opposite to electron flow.