Precedence Networks - Construction Project Scheduling and Control - page 119

CHAPTER 5 EXERCISES
1. Explain the main differences between the standard node diagram (covered in
Chapter 4) and precedence diagrams.
2. What is the stair-type relationship? What is the advantage of precedence diagrams
over it? Draw a network for a roofing job (install trusses, install sheathing, install
felt, install shingles), using each method (i.e., draw two diagrams, one for each
method).
3. Give a practical example for each of the following:
a. Start-to-start (SS) relationship only
b. Finish-to-finish (FF) relationship only
c. Combination SS and FF relationship
4. What does the following relationship mean?
a. Activity B must start exactly 3 days after the start of A.
b. Activity B can start at least 3 days after the start of A.
c. Activity B can start at most 3 days after the start of A.
d. None of the above
5. What does the following relationship mean?
a. Activity B must finish exactly 2 days after the finish of A.
b. Activity B can finish at least 2 days after the finish of A.
c. Activity B can finish at most 2 days after the finish of A.
d. None of the above
6. What does the following relationship mean?
a. Activities A and B must start simultaneously, but B must finish exactly 2 days
after the finish of A.
b. Activity B can start after the start of A but must finish at least 2 days before
the finish of A.
c. Activity B can start before the start of A but must finish at most 3 days after
the finish of A.
d. Activity B can start after the start of A but must finish at least 2 days after the
finish of A.
7. What does the following relationship mean?
a. Activity A can start 2 days before the start of activity B.
b. Activity B can start 2 days after the completion of activity A.
c. Activity B can start 2 days before the completion of activity A.
d. Activity B has to start at least 2 days before the completion of activity A.