15) Total float for any activity is defined as the difference between

its latest finish time and earliest start time for its successor activity

its latest start time and earliest start time

its latest start time and earliest finish time

its earliest finish time and earliest start time for its successor activity

Answer is:

its latest start time and earliest start time

none of the above

Answer is:

A critical path always begins at the very first event.

A critical path always terminates at the last event.

Critical activities control the project duration.

Critical activity is the one for which free float is zero.

Answer is:

its earliest finish time and earliest start time for its successor activity

its latest start time and earliest start time

its latest finish time and earliest start time for its successor activity

its earliest finish time and latest start time for its successor activity

Answer is:

is always longest

is always shortest

may be longest

may be shortest

Answer is: