Solutions47
Which of these statements regarding time-cost tradeoffs in CPM networks is true?
A) Crashing is not possible unless there are multiple critical paths.
B) Crashing a project often reduces the length of long-duration, but noncritical, activities.
C) Activities not on the critical path can never be on the critical path, even after crashing.
D) Crashing shortens the project duration by assigning more resources to one or more of the
critical tasks.
E) None of the above is true. - ANSWERS -D) Crashing shortens the project duration by assigning
more resources to one or more of the critical tasks.
A network has been crashed to the point where all activities are critical. Additional crashing
A) is unnecessary
B) is impossible
C) is prohibitively expensive
D) may require crashing multiple tasks simultaneously
E) can be done, but all critical tasks must be reduced in duration - ANSWERS -D) may require
crashing multiple tasks simultaneously
Activity D on a CPM network has predecessors B and C, and has successor F. D has duration 6.
B's earliest finish is 18, while C's is 20. F's late start is 26. Which of the following is definitely
true?
A) B is a critical activity.
B) C is completed before B.
C) D has no slack but is not critical.
,D) D is critical and has zero slack.
E) F is critical and has zero slack - ANSWERS -D) D is critical and has zero slack.
Which of the following tasks would typically represent an operations management activity at
Hard Rock Cafe?
A. receiving a shipment of incoming food ingredients
B. preparing an employee schedule
C. designing an efficient layout
D. all of the above - ANSWERS -D. all of the above
The creation of goods and services is referred to as:
A. production.
B. formation.
C. transformation.
D. design. - ANSWERS -A. production
Which of the following is an example of a "hidden" production function?
A. manufacturing a television
B. assembling a motorcycle
C. transplanting a liver
D. producing a computer - ANSWERS -c. transplanting a liver
The production process at Hard Rock Cafe does NOT include which of the following activities?
A. placing raw materials in cold storage
B. advertising
C. receiving
,D. cooking - ANSWERS -B. advertising
Which of the following are considered to be the three primary functions that all organizations
perform?
A. production/operations, manufacturing, and finance/accounting
B. marketing, production/operations, and finance/accounting
C. marketing, research and development (R&D), and engineering
D. none of the above - ANSWERS -B. marketing, production/operations, and finance/accounting
Which of the following activities at a commercial bank is NOT an operations activity?
A. security
B. maintenance
C. auditing
D. check clearing - ANSWERS -C. auditing
Which of the following activities at an airline is NOT an operations activity?
A. sales
B. crew scheduling
C. catering
D. flying - ANSWERS -A. sales
Which of the following activities at a manufacturing facility is an operations activity?
A. funds management
B. market research
C. industrial engineering
D. accounts receivable - ANSWERS -C. industrial engineering
, Supply chains are comprised of organizations and activities that supply a firm with goods and
services within
A. production.
B. operations management.
C. business functions.
D. a global network. - ANSWERS -D. a global network.
Which of the following is NOT one of the factors that fosters specialization and worldwide
supply chains?
A. cheaper transportation
B. instant communication
C. marketing
D. specialized expert knowledge - ANSWERS -C. marketing
Competition in the 21st century is no longer between companies; it is between
A. countries.
B. technologies.
C. supply chains.
D. individuals. - ANSWERS -C. supply chains.
In general, the supply chain starts with
A. the provider of basic raw materials.
B. a distributor.
C. research and development.
D. final customers at the retail store. - ANSWERS -A. the provider of basic raw materials.