Choose the best answer

For the background information on the first group of three questions, refer to the table that follows.

Activity	Immediate follower	Estimated time
A B C D E F G	E F D, G F end end end	6 5 8 4 5 10 10

1		The critical path is:
			A)	B-F.
			B)	C-D-F.
			C)	C-G.
			D)	A-E.
2		The time for the critical path is:
			A)	20 days
			B)	11 days
			C)	18 days
			D)	19 days
			E)	none of these
3		The path with the greatest slack time is:
			A)	A-E.
			B)	B-F.
			C)	C-D-F.
			D)	C-G.
4		A major limitation of Gantt charts in project management is that they do not:
			A)	indicate the major activities involved.
			B)	show activity times.
			C)	show the timing of activities.
			D)	show precedence relationships.
			E)	give a visual portrayal.
5		Which is not a feature of PERT/CPM, or are they all features?
			A)	An estimate of how long a project will take.
			B)	A graphical display of project activities.
			C)	An indication of critical activities.
			D)	An indication of slack time.
			E)	All are features.
6		Which of these may require the use of a dummy activity?
			A)	Gantt chart
			B)	Activity-on-arrow network
			C)	Activity-on-node network
			D)	Both b and c
			E)	None of these
7		The distribution that is used to represent path times is the
			A)	binomial.
			B)	beta.
			C)	normal.
			D)	Poisson.
8		The standard deviation of path times is computed as:
			A)	the sum of the standard deviations of all activities on the path.
			B)	the square root of the sum of the standard deviations of all activities on the path.
			C)	the sum of the variances of all activities on the path.
			D)	the square root of the sum of the variances of all activities on the path.
			E)	none of these.
9		An important assumption in PERT calculations is:
			A)	activity times are normally distributed.
			B)	activity times are independent.
			C)	a computer will be available to do the calculations.
			D)	a and b.
			E)	a and c.