The float (slack) of any activity in a PERT graph must be:

Seleccione una:

a. Zero or greater

b. Zero

c. Negative

d. Positive

Activity	Predecessors	Durations (days)
A	none	2
B	A	3
C	A	4
D	B	1
E	B and C	3
F	D and E	6
G	C and D	3

For the preceding project, the project duration is:

Seleccione una:

a. 15

b. 16

c. 18

d. 22

Activity	Predecessors	Durations (days)
A	none	2
B	A	3
C	A	4
D	B	1
E	B and C	3
F	D and E	6
G	C and D	3

For the preceding project, the earliest finish for activity F is:

Seleccione una:

a. 12

b. 16

c. 15

d. 9

An activity in a network has the following characteristics: ES = 10, EF = 18 and LS = 12. The duration of the activity is:

Seleccione una:

a. 6

b. 10

c. Cannot be determined with the information provided

d. 8