Quiz answers
1) The definition of Earliest Time (ES) is an activity that can start, assuming all successors have been started.
Answer: FALSE
The definition of Earliest Time (ES) is an activity that can start, assuming all predecessor have been started.
2) The definition of Critical Path Method (CPM) is the longest and shortest path through the network (activities).
Answer: FALSE
The definition of Critical Path Method (CPM) is the shortest path through the network (activities).
3) Operation is the creation of goods and services.
Answer: FALSE
Production is the creation of goods and services.
4) One of the competitive advantages is offering high quality with high technology.
Answer: FALSE
Strategies for Competitive Advantage: 1- Differentiation, 2- Cost
leadership, 3- Quick response
5) Project Management consists of Planning, Staffing, Controlling, Maintaining, and Selling.
Answer: FALSE
PM consist of planning, scheduling and control.
1-Planning - goal setting, project
definition, team organization
2-Scheduling - relating people, money, and supplies to specific activities and
activities to one and other
3-Controlling - monitoring resources, costs, quality, and budgets; revising
plans and shifting resources to meet time and cost demands
6) E-Commerce is the use of computer networks, primarily the Internet, to buy and sell products, services, and information
Answer: TRUE
7) Standard deviation is a statistical measure of spread or variability.
Answer: TRUE
8) The median is the same as the average.
Answer: FALSE
The Median is the value so that roughly half of the data are smaller and roughly half of the data are larger. There are two formulas for the computation of the median, depending on whether the size of your sample is even or odd. In both cases, sort the data. If n (the number of observations in your sample) is odd, select (n+1)/2 observation. If n is even, select halfway between the n/2 and n/2+1 observation.
9) The vision of an organization is the purpose for being, which provides boundaries and focus and describes their contribution to society.
Answer: FALSE
The mission of an organization is the purpose for being, which provides boundaries and focus and describes their contribution to society.
10) The first step in using CPM is determining which tasks has the longest time.
Answer: FALSE
The first step in CPM analysis is constructing a network, or arrow, diagram that graphically shows the precedence relationships among project activities.
(Source: http://www.fs.fed.us/psw/publications/documents/psw_gtr093/psw_gtr093.pdf)
11) Production is creation of goods and services.
Answer: TRUE
12) Henry Ford's "Principles of Scientific Management" aided in creating the best way to produce.
Answer: FALSE
Frederick Winslow Taylor is
known for coinage of the term scientific management in his article "The
Principles of Scientific Management," published in 1911.
Five principles of Scientific Management:
1-
Scientifically study each part of a task and develop the One best way of
performing it.
2- Select the best person to do the job.
3- Train, Teach and develop the worker.
4- Provide financial incentives for following the methods.
5- Divide work and responsibility so that managers are responsible for planning
the work methods and workers are responsible for executing the work accordingly.
13) Planning involves setting goals, defining projects, and team organization.
Answer: TRUE
14) Supply-chain partnering is one new trend in operations management.
Answer: TRUE
15) If a company wishes to globalize, it can expect that approximately the same technology will be available in all countries of interest.
Answer: FALSE
16) PERT requires three estimates of activity completion time, while CPM only requires a single estimate.
Answer: TRUE
17) In the term of studying operation management, WBS stands for World Broadcasting System.
Answer: FALSE
Work Breakdown Structure (WBS) is an exhaustive, hierarchical (from general to specific) tree structure of deliverables and tasks that need to be performed to complete a project.
18) When slack is 1 we always find critical path method.
Answer: FALSE
Critical path activities have 0 slack
19) Mission of Hard Rock Café was (1) Serve all, Love all (2) All is one (3) Humanity is Instrumental, (4) Save the planet and (5) take time to be Kind.
Answer: TRUE
20) OM is the set of activities that create value in the form of goods and services by transforming goods to service.
Answer: FALSE
21) Two advantages of companies going global is lower wages and lower taxes.
Answer: TRUE
22) Using PERT will double the time it takes your project to be completed.
Answer: FALSE
23) There can only be one critical path.
Answer: FALSE
The Critical Path always passes through those events showing the least amount of slack, although there sometimes can be more than one critical path when the slack times are equivalent on two different paths leading to a certain event or the final completion event.
(Source: http://www-distance.syr.edu/edu5900cpa.html)
24) Critical variables in productivity are labor, capital and management, contributing to about 52%, 38%, and 10% of the annual increases respectively.
Answer: FALSE
25) A mission is the rational for the organization’s existence, thus stating what it will contribute to society.
Answer: TRUE
26) The five strategic decisions of OM are product design, quality, process design, location selection, layout design, human resources and job design, supply-chain management, inventory, scheduling, and maintenance.
Answer: FALSE
The ten strategic decision.......
27) Effective scheduling leads to lower costs but not time.
Answer: FALSE
28) These are the 3 specific approaches used by OM to achieve globalization: Differentiation, Low cost, Response, and Cheap Labor.
Answer: FALSE
29) Hard Rock Café manager relies solely on sophisticated database for forecasting.
Answer: FALSE
30) PERT stands for Path Evaluation and Reasoning Tool.
Answer: FALSE
Program Evaluation and Review Technique.
(Source: http://en.wikipedia.org/wiki/Program_Evaluation_and_Review_Technique)
31) CPM works with three expectation times.
Answer: FALSE
32) Slack means the ability to maneuver in time without delaying completion of the project.
Answer: TRUE
33) E-commerce can increase economic efficiencies by matching buyers and managers.
Answer: FALSE
...............by matching buyers
and managers.
34) Global companies may be able to attract and keep the talent necessary for success.
Answer: TRUE
35) One benefit of globalization is that a company may learn new markets for its product.
Answer: TRUE
36) Increased flexibility of locations is a benefit of traditional businesses.
Answer: FALSE
Increased flexibility of locations is a benefit of e-commerce
37) Critical path of a network is the path with the fewest activities.
Answer: FALSE
38) One difference between a good and a service is that services are often produced and consumed simultaneously.
Answer: TRUE
Services are often difficult to store. Therefore, they are commonly produced and consumed simultaneously.
(Source: http://wps.prenhall.com/WPS_CDA_Grade_Render/1,1015,660003,00.html)
39) Operations management has virtually no impact upon the overall strategy of an organization.
Answer: FALSE
The ten strategic OM decisions illustrate the importance of operations management to the organization's strategy.
40) PERT requires one estimate of activity completion time, while CPM only requires three estimates.
Answer: FALSE
PERT/CPM: DIFFERENCES
Both tools lead to the same end: a
critical path and critical activities with slack time equal to zero. The
differences between these tools come from how they treat the activity time. PERT
treats activity time as a random variable whereas CPM requires a single
deterministic time value for each activity. Another difference is that PERT
focuses exclusively on the time variable whereas CPM includes the analysis of
the Time/Cost Trade-off.
(Source:
http://www.snc.edu/socsci/chair/333/numbers.html)
41) The management process consists of only planning and controlling.
Answer: FALSE
(Planning, Organizing Staffing, Leading, Controlling.)
42) Operations managers are moving more decisions to the individual worker.
Answer: TRUE
Empowering workers is one of the new trends in operations management.
43) E-commerce decreases economic efficiencies by matching buyers and sellers.
Answer: FALSE
44) The three major business functions necessary to all organizations are marketing, accounting, personnel.
Answer: FALSE
They are marketing, finance/accounting, operations.
45) With respect to PERT and CPM, slack is the amount of time a task may be delayed with out changing the overall project completion time.
Answer: TRUE
46) The critical path is the sequence of activities that have a zero slack time; in other words they must each start at their earliest possible start time and be completed in no more than the estimated time for the overall project be to completed on time.
Answer: TRUE
47) The project managers just have to be responsible to ensure the project could be finished on time within the budget without any other factors.
Answer: FALSE
48) Competitive advantages are differentiation, lower costs, and response.
Answer: TRUE
49) Two ways to do Critical Path Method is the forward pass which starts from ES, and backward pass which starts from end an compute LS and LF.
Answer: TRUE
50) Operations management (OM) is the creation of goods and services.
Answer: FALSE
This is the definition of production.
51) Bill Gates and Gantt Chart are the fathers of scientific management.
Answer: FALSE
52) There are five important decision areas in OM, such as design of goods and services, managing quality, supply chain management, scheduling, and maintenance.
Answer: FALSE
10 Strategic OM Decisions
1- Goods & service design
2- Quality
3- Process & capacity design
4- Location selection
5- Layout design
6- Human resource and job design
7- Supply-chain management
8- Inventory
9- Scheduling
10- Maintenance
53) There is not much difference between goods and services.
Answer: FALSE
54) The difference between goods and services is that goods can be resold but reselling a service is unusual.
Answer: TRUE
55) With Gantt Charts it is still difficult to see how jobs (activities) are overlapped.
Answer: FALSE
56) In Hard Rock Cafe Korea, they serve Korean food as the main dish.
Answer: FALSE
57) With MS Project, one can see critical path by entering the activity durations and precedence.
Answer: TRUE
58) In Hard Rock Cafe Korea, they serve little food.
Answer: TRUE
59) Korean people like to stay out later than Americans.
Answer: TRUE
60) In Delta service activities for jets, fueling is overlapping with passenger boarding.
Answer: FALSE
61) Operation crew means aircraft check may overlap with passenger boarding and baggage loading.
Answer: TRUE
62) Excel is more suitable than MS Project for activity network.
Answer: FALSE
63) CPM was developed by US Navy in 1958.
Answer: FALSE
64) Scheduling a service system is the same as scheduling a manufacturing system.
Answer: FALSE
65) In both PERT and CPM, you need to know precedence relationship, interdependencies, and activity time estimates.
Answer: TRUE
66) Class project is to do CPM for a hospital.
Answer: FALSE
67) The final project is to become an operations
manager for TLC.
Answer: FALSE
68) There is a writing research project as an extra
credit.
Answer: FALSE
69) Every node in an activity has early start, early finish, late start, and late finish.
Answer: TRUE
70) Every node has a completion time.
Answer: TRUE
71) Slack means negligence in operations management terms.
Answer: FALSE
72) Finding ES is to find the minimum of all immediate predecessors.
Answer: FALSE
73) WIth CPM, a 25 week activity can be reduced to 15 weeks of activity without compromising quality.
Answer: TRUE
74) There are seven steps in CPM and the hardest is predecessor table.
Answer: FALSE
75) Most of Boeing productions is in US.
Answer: FALSE
76) Most companies go to Mexico because of new market.
Answer: FALSE
77) Dell is a company that has an excellent customer service.
Answer: FALSE
78) Selling watermelons is a good example of service.
Answer: FALSE
79) Creation of tangible product is an example of good.
Answer: TRUE
80) Wikipedia has a good definition for Operations Management.
Answer: TRUE
81) Alfred Sloan is one of the founders of globalization.
Answer: FALSE
82) Henry Ford created assembly line.
Answer: TRUE
83) 53% of US growth has been due to goods management.
Answer: TRUE
84) The tallest bridge connects Spain to Italy.
Answer: FALSE
85) Harley Davidson motorcycle is an example of lower cost as its competitive advantage.
Answer: FALSE
86) An Operations Manager can save more than a marketing manager and accounting manager combined.
Answer: FALSE
87) The author of the text book is Jay Heizer and Prof. Ebrahimi.
Answer: FALSE
88) One of the assignments is to find the standard deviation.
Answer: FALSE
89) Rabbits run faster than dogs because of its legs.
Answer: FALSE
90) OM is a set of activities that create revenue in the form of goods and services.
Answer: FALSE
91) Hard Rock Cafe is a good example because of its food service.
Answer: FALSE
92) The deadline for assignments are by the midterm.
Answer: FALSE
93) In Fischer company, OM managers made more money than marketing managers.
Answer: TRUE
94) Boeing has 200 deaf employees.
Answer: FALSE
95) China has been the largest single country in dollar value for Boeing.
Answer: FALSE
96) Thomas and Palma are the captains of the class.
Answer: TRUE
97) Improve supply chain is one of the reasons for globalization.
Answer: TRUE
98) The taste of toothpaste is the same in all countries.
Answer: FALSE
99) Professor Lyons teaches OM at St.John's.
Answer: TRUE
100) Best to catch Professor Ebrahimi before and after the class.
Answer: TRUE