Page 458 - The Handbook for Quality Management a Complete Guide to Operational Excellence

444 A p p e n d i x D S i m u l a t e d C e r t i f i c a t i o n E x a m Q u e s t i o n s 445

158. In constraint management, buffers:
a. are specified in units of time, such as requiring delivery of material
24 hours before it is needed.
b. are specified in production units, such as requiring that 10 percent
more product be delivered to the process step than is necessary for
the customer order.
c. are not recommended, since they produce inefficiencies.
d. none of the above
159. In Goldratt’s Drum-Buffer-Rope, the rope:
a. causes backlogs at various stages, in order to improve the efficiency
of the constraint.
b. prevents resources from being allocated faster than they can be
used by the constraint.
c. acts to pull material through the system, in contrast to push
production systems.
d. prevents a critical resource from being without material.

160. Critical chain refers to constraint management applied to:
a. critical processes.
b. repetitive production.
c. projects.
d. choices a and b
e. none of the above
f. all of the above

161. The critical chain approach accounts for which of the following behaviors?
a. Estimating task time longer than necessary to avoid late completion
b. Starting the task just prior to the scheduled completion date
c. Using all of allotted task time, regardless of how long it really takes
d. Assigning a given person multiple tasks with deadlines
e. All of the above
162. Critical chain management:
a. ensures on-time project completion by maintaining on-time
completion of each activity on the critical chain.
b. replaces time estimate padding for activities with time buffers at
key points on the critical chain.
c. should be used with caution if a resource has more than one task
assigned to it.
d. should not be applied to managing multiple projects at once.

163. A key difference between critical chain management and PERT/CPM
critical path is:
a. the critical path will always be shorter.
b. tasks feeding the critical path have buffers imposed.

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