1. Which of the following statements is true about a critical path?

A. A critical path consists of activities for which early start time equals late start time.

B. The activities along the critical path take the longest time.

C. A critical path consists of activities for which early finish time equals late finish time.

D. There is no slack in the activities along the critical path.

E. All of the above

2. The information calculated from the forward and backward pass can be used for:

A. Identifying the critical path

B. Calculating slack

C. Determining the completion date of the project

D. Both A and C

E. A, B, and C

F. Both A and B

3. "Slack" refers to the difference between:

A. Latest finish and earliest start times

B. Latest finish and earliest finish times

C. Latest start and earliest finish times

D. Optimistic and pessimistic times

E. None of the above

4. Which of the following statements about critical path method (CPM) is true?

A. It is an example of a variable time project scheduling method

B. It is well suited when activity times are expected to vary

C. It is well suited when activity times are fairly constant and can be reduced by spending more money

D. It is well suited for R&D projects and for scheduling computer systems.