1) In order to determine the probability of timely project completion, it is sometimes
necessary to take into account paths other than the critical path.
2) Deterministic networks use three time estimatesshortest, most likely, and longestfor
each activity in order to best determine the activity’s estimated time.
3) The current trend toward global operations has made capacity decisions much easier
since we have the whole world in which to consider operations.
4) Understocking an inventory item is a sure sign of inadequate inventory control.
5) A linear programming problem can have multiple optimal solutions.
6) A retail store that carries twice as much inventory as its competitor will provide twice
the customer service level.
7) Degree of technology is a factor affecting the decision of how much preventive
maintenance is desirable.
8) Continuous improvement attempts to achieve major breakthroughs in product or
service quality.
9) Forecasts for groups of items tend to be less accurate than forecasts for individual
items because forecasts for individual items don’t include as many influencing factors.
10) The SPT priority rule always results in the lowest average completion time.
11) Service layouts must be visually pleasing as well as functional.
12) The Delphi approach involves the use of a series of questionnaires to achieve a
consensus forecast.
13) Which of the following is not a strategy to manage service capacity?
A.hiring extra workers
B.backordering
C.pricing and promotion
D.part-time workers
E.subcontracting
14) In graphical linear programming, the objective function is:
(I) a family of parallel lines.
(II) a family of isoprofit lines.
(III) interpolated.
(IV) linear.
A.I only
B.II only
C.III and IV only
D.I, II, and IV only
E.I, II, III, and IV
15) The EDD priority rule usually does well with regard to:
A.cost.
B.lateness.
C.overtime.
D.waste.
E.makespan.
16) Putting forecast errors into perspective is best done using
A.exponential smoothing.
B.MAPE.
C.linear decision rules.
D.MAD.
E.hindsight.
17) When the waiting cost incurred by customers likely varies, an appropriate queuing
model is:
A.single channel, single phase.
B.single channel, multiple phase.
C.multiple channel, single priority.
D.multiple channel, multiple phase.
E.multiple channel, multiple priority.
18) The major approaches used in plans to deal with breakdowns include all of the
following except:
A.standby equipment.
B.inventories of spare parts.
C.operator repair of minor problems.
D.readily available repair personnel.
E.All are major approaches.
19) The manager of Lawn and Garden Services would like to estimate the proportion of
her employees’ time spent performing various gardening and lawn care activities. She
has made 400 random observations of a typical worker, with the following results:
What is the probability that the true proportion of time spent mowing is exactly equal to
the sample proportion?
A.0
B..1
C..2
D..5
E.1
20) With an A-B-C system, an item that had a high demand but a low annual dollar
volume would probably be classified as:
A.A
B.B
C.C
21) The maximum possible output given a product mix, scheduling difficulties, quality
factors, and so on is:
A.utilization.
B.design capacity.
C.efficiency.
D.effective capacity.
E.available capacity.
22) Given the following information:
Order quantity = 300; = 20 units; desired lead time service level = .86.
Find:
(A) the expected number of units short per cycle
(B) the annual service level
23) A location analysis has been narrowed down to three locations. The critical factors,
their weights, and the ratings for each location are shown below:
What is the composite score for location C?
A.76
B.75
C.78
D.74
E.76.33