ch. 5 pm
Burrito King the rematch
4.323
Burrito King (a new fast-food franchise opening up nationwide) has successfully automated burrito production for its drive-up fast-food establishments. The Burro-Master 9000 requires a constant 45 seconds
4.95
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 4, 3, 7, 9, 6, and 5 minutes, and the cycle time is 7 minutes?
5
Assume the service rate for a queue in a truck-loading operation is 7 trucks per hour
8.57
Using the assembly-line balancing procedure, which of the following is the required cycle time in minutes per unit if the daily production time is 480 minutes and the required daily output is 50 units?
9.6
A firm has redesigned its production process so that it now takes 12 hours for a unit to be made. Using the old process, it took 16 hours to make a unit. If the process makes one unit each hour on average and each unit is worth $237. Then the reduction in WIP value is $
948
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 4, 6, 7, 2, 6, and 5 minutes, and the cycle time is 10 minutes?
3
a teller's window in a bank is an example of a sing channel, multiphase queuing system
FALSE
break-even analysis can only be used in production equipment decision making when dealing solely with fixed costs, no variable costs
FALSE
A difference between project and continuous flow categories of process flow structures is which two of the following?
THE SIZE AND BULK OF THE PRODUCT
A department of 25 machines is kept running by three operators who respond to randomly occurring equipment problems. When an operator is absent, the amount of production being lost by machines waiting for service increases. The analyst can use queing theory analysis to determine whether to pay overtime to an operator from a different shift or not
TRUE
A variable arrival rate is more common in waiting line management than a constant arrival rate
TRUE
An important aspect of service products is that they cannot be inventoried
TRUE
Backordering costs incurred in producing a given product type in a given time period are relevant aggregate operations planning costs.
TRUE
Firms that match the production rate to the order rate by hiring and laying off employees as the order rate varies are following what is known as the chase strategy.
TRUE
One trade-off illustrated by the product-process matrix is between flexibility and cost.
TRUE
Project management software available today combines CPM and other scheduling aids, like Gannt charting, to aid in tracking progress of project completion
TRUE
The closer the customer is to the customer order decoupling point the shorter it takes the customer to receive the product.
TRUE
the objective of the aggregate operations plan is to minimize the cost of resources required to meet demand over that period
TRUE
You know when you have arrived at the optimal solution in using the Time-Cost CPM Scheduling model analysis when what happens?
You have reached the minimum total cost
which of the following is not a suggestion for managing queues presented in the textbook?
determine an acceptable waiting time for your customers
which following queue discipline is discussed in the textbook
emergencies first
the critical path of activities in a project is the sequence of activities that form the shortest chain in a project network of activities
false
in the service-system design matrix, an internet and on-site technology service encounter is expected to have which of the following
high production efficieny
From an operational perspective yield management is most effective under which of the following circumstances?
inventory is perishable
In the service-system design matrix, a face-to-face total customization service encounter is expected to have which of the following?
low production efficiency
which of the following are alternative possible service encounters included in the Service-system design matrix?
mail contact
you have just determined the actual number of workstations that will be used on an assembly line to be 6 using the assembly-line balancing procedure. the cycle time of the line is 5 minutes and the sum of all the tasks required on the line is 25. which of the following is the correct value for the resulting line's efficiency?
0.833
For an activity in a CPM analysis, the Early Finish time is 11 and the Late Finish time is 13. the slack time associated with this task in days is
2
Students arrive at the administrative services office at an average of 7 students per hour. the service desk can process 10
30
Assume a fixed cost for a process of $120,000. The variable cost to produce each unit of product is $35, and the selling price for the finished product is $65. Which of the following is the number of units that has to be produced and sold to break-even?
4,00
CUT AND TRY 400/900/10%
590
Using the cut-and-try. 500/1000/10%
600
Assume a fixed cost for a process of $10,000. The variable cost to produce each unit of product is $34, and the selling price for the finished product is $48. ignoring inventory, how many units must the firm sell to break even?
714
using the cut-and-try method 225, 1000, 200
925
The essential issue in satisfying customers in the make-to-stock environment is to balance the cost of the finished item against the willingness of the consumer to pay for it
FALSE
a make-to-order firm will work with the customer to design the product, and then make it from purchase materials, parts, and components
FALSE
a make-to-order firm will work with the customer to design the product, and then make it from purchased materials, parts and components
FALSE
a matrix project structure is often referred to as a "skunkwords."
FALSE
a project layout is characterized by a low degree of task ordering
FALSE
a rate fence is a person who books airline seats at low rates fat in advance and sells the seats at a profit later
FALSE
a service system with a high degree of customer contact is less difficult to control than a low degree of customer contact service system
FALSE
arrival characteristics in a queuing problem analysis include the length of the queue
FALSE
effective management of services requires a clear focus on understanding operations, so much so, that it may even require the exclusion of consideration of marketing or personnel
FALSE
subcontracting is viewed as risky strategy because the firm may lost control of product design and pricing
FALSE
the assembly-line balancing procedure determines the precedence relationships of manufacturing tasks
FALSE
the efficiency of an assembly line is found by a ratio of the sum of all task times divided by the cycle time
FALSE
the master production schedule is a crucial input into the aggregate operations plan
FALSE
the objective of the aggregate operations plan is to insure that the marketing and sales plans are realistic
FALSE
the sales and marketing plans are typically developed separately from the Aggregate Operations Plan as a way of cross-checking results to insure the integrity of assumptions about the future
FALSE
the service blueprint is a classification of services
FALSE
the time needed to respond to a customer's order is called response time
FALSE
Earned Value Management (EVM) has the capability to combine measurements of scope, schedule, and cost in a project
TRUE
Fixed and variable costs incurred in producing a given product type in a given time period are relevant aggregate operations planning costs
TRUE
Highest-profit customer first is a queue discipline discussed in the textbook.
TRUE
Ideally in waiting line or queuing analysis we want to balance the cost of service capacity with the cost of waiting
TRUE
If the sum of the task times required to produce a product is 45 minutes and the cycle time for the same product is 10 minutes, the theoretical minimum number of workstations is 5 using the assembly-line balancing procedure.
TRUE
Poka-yokes are procedures that block the inevitable mistake from becoming a service defect
TRUE
The first step in balancing an assembly line is to specify the precedence relationships among tasks to be performed on the line.
TRUE
The focus in the make-to-stock environment is on providing finished goods where and when the customers want them
TRUE
Using the Time-Cost CPM model, the crash time is the shortest possible time allowed for each activity in the project.
TRUE
Workstation cycle time is the time between successive units coming off the end of the assembly line
TRUE
Yield management is the process of allocating the right type of capacity to the right type of customer at the right prices at the right time to maximize revenue or yield
TRUE
a car wash is an example of single channel, multiphase queuing system
TRUE
a general purpose machine is less capable than a special purpose machine in certain tasks but can perform a broader variety of tasks
TRUE
a matrix project attempts to blend properties of functional and pure projects structures
TRUE
accurtate medium-range planning increases the likelihood of operating within the limits of budget
TRUE
costs incurred in hiring, training and laying off personnel are considered relevant aggregate operations planning costs
TRUE
engineer-to-order firms will work with the customer to design the product, and then make it from purchased materials, parts and components.
TRUE
in CPM the late start time estimate is the latest time you can start an activity and still keep the entire project on schedule
TRUE
in a CPM analysis if you subtract the early start from the late start the result is the activity's slack time
TRUE
one difference between an assembly line process flow and a continuous process flow is that on the assembly line the flow is discrete rather than continuous
TRUE
one of the advantages of a functional project organizational structure is that a team member can work on several projects
TRUE
one trade-off illustrated by the product-process matrix is between flexibility and cost
TRUE
process selection refers to the strategic decision of selecting which kind of production processes to use to produce a product or provide a service
TRUE
the Gantt chart is an example of a project control chart
TRUE
the aggregate operations planning variable "workforce level" refers to the number of workers needed to accomlis the planned production
TRUE
a simple project listing of five activities and their respective time estimates are presented below: Using CPM, which activities make up the critical path?
A, B, D, E
a company must perform a maintenance project consisting of seven activities. the activities, their predecessors, and their respective time estimates are presented below:
A,B,D,F,G
Time and cost information below for use in a Time-Cost CPM scheduling model
A=$100, B=$200, C=$300
You have the following time and cost information below for use in a Time-Cost CPM Scheduling model. What are the three costs per unit of time to expedite each activity?
A=$200, B=$300, C=$400
which of these expressions is Little's Law?
ALL OF THE ABOVE
students arrive at the administrative service office at an average of one every 12 mins,
50
Which of these expression is Little's Law?
all of these
a work breakdown structure is used in project management but it is not used when the critical path method is involved
false
on of the disadvantages of a pure project organizational structure is that the project manager has full authority over the project
false
a project can be subdivided into which of the following?
work packages
You have just performed a CPM analysis and have found that more than one path through the project network has zero slack values. What can you conclude?
you have multiple critical paths
there are many applications of poka-yokes in service organizations. which of the following is one of the three-T's used to classify poka-yokes?
treatment/task
The essence of yield management is the ability to manage supply.
FALSE
the service blueprint makes a distinction between:
High and low customer contact aspects of the service
A firm fills its customer's orders from finished goods inventory. it is a:
MAKE TO STOCK FIRM
In an overview of the major operations planning activities in a typical organization, which of the following activities precedes aggregate sales and operations planning?
Process planning
PERT is an abbreviation for which of the following methodologies?
Program Evaluation and Review Technique
you have been place in charge of a large project. Shortened communication lines are required to ensure quick resolution of problems as they arise. you recognize that the project is going to take a lot of time and require a lot of team pride, motivation, and commitment by all members. which project management structure should you use in this situation?
Pure Project
Which of the following is a suggestion for managing queues that is mentioned in the textbook?
SEGMENT THE CUSTOMERS
when balancing an assembly line, which of the following is not a way to reduce the longest task time below the required workstation cycle time
SPEED UP THE ASSEMBLY LINE TRANSGER MECHANISM
which of the following is considered a "pure" production planning strategy?
Stable workforce, variable work hours
The sales and operations planning process consists of a series of meetings
TRUE
in aggregate operations planning the variable "production rate" refers to the number of units completed per unit of time
TRUE
it is difficult to separate the operation management function from marketing in services
TRUE
Time-cost CPM BOTH
Total time is 11 days, total cost is $1850
The time is in days and the costs include both direct and indirect costs. What are the total time of this project and total normal cost?
Total time is 12 days, Total costs is $1700
which of the following is a suggestion for managing queues presented in the textbook?
Train your servers to be friendly
A project may be defined as a series of related jobs directed toward some major output and requiring a significant period of time to perform
True
one of the assumptions made using CPM is that project activities can be identified with clear beginning and ending points
True
Time-cost CPM DIRECT
$2,150
in a workcenter, machine a has a ten minute set-up per batch and a two minute per unit run time. machine b performs the identical function but has a set-up time of fifty minutes and a one minute run time per unit. the workcenter makes products in batches in batches ranging from one unit to one hundred units. Assuming capacity is not a limitation on either machine, on which batches should machine B be used?
Batches of more than 40 should be run on machine b
a company must perform a maintenance project consisting of seven activities. the activities, their predecessors, and their respective time estimates are presented below: Using CPM, which activities have slack in this project?
C, E
in conducting aggregate operations planning there are a number of required inputs, which of the following are considered inputs internal to the firm?
CURRENT physical capacity and current workforce
which of the following methods discussed in the text requires generating several alternative aggregate plans?
CUT & TRY
Which of the following is a graphic project report used in project management?
Cost and performance tracking schedule
From an operational perspective yield management is least effective under which of the following circumstances?
Demand is stable and close to capacity
Aggregate Planning Techniques is developed from the master schedule and the strategic capacity plan
FALSE
Aggregation in sales and operations planning is by groups of customers on the supply side and by product families on the demand side of the firm's supply chain.
FALSE
Because little or no inventory is carried in a service operation, it is easy to separate the operations management functions from marketing in services.
FALSE
Dell computer is not an example of an assemble-to-order firm
FALSE
Firms facing cyclical demand fluctuations would be wise to introduce complementary products whose cycles are the same as their current products.
FALSE
Poka-yoke is roughly translated from Japanese as "quality management."
FALSE
Pricing for a service should primarily relate to the cost of providing the service and has little to do with capacity issues the service provider might face
FALSE
A listing of immediate predecessor activities is important information in a CPM analysis for which of the following reasons?
Its specifies the relationships in the CPM network of activities
maintaining a stable workforce at a constant output rate while shortages and surpluses are absorbed by fluctuating inventory levels, order backlogs and allowing lost sales is which of the following production planning strategies
LEVEL
which of the following is not a step in developing a manufacturing cell layout?
disposing of left-over machinery and outsourcing ungrouped processes
The main purpose of aggregate operations planning is to specify the optimal combination of which of the following?
Wordforce levels and inventory on hand
The major goal of critical path analysis is to
determine when activity in the project should be schedule
For an infinite queuing situation, if the arrival rate for loading trucks is 5 trucks per hour, what is the mean time between arrivals?
0.2 HOURS
you have just determined the actual number of workstations that will be used on an assembly line to be 5 using the assembly-line balancing procedure. the cyclle time of the line is 6 minutes and the sum of all the tasks required on the line is 19 minutes. what is value for the resulting line's efficiency?
0.63
you ha just determined the actual number of workstations that will be used on an assembly line to be 6 using the assembly-line balancing procedure. The cycle time of the line is 5 minutes and the sum of all the tasks required on the line is 25 minutes.
0.83
you have just determined the actual number of workstations that will be used on an assembly line to be 4 using the assembly-line balancing procedure. the cycle time of the line is 10 minutes and the sum of all that tasks required on the line is 39 minutes. what is the value for the resulting line's efficiency?
0.97
assume a fixed cost for a process of $16, 015. the variable cost to produce each unit of product is $12 and the selling price for the finished product is $28. what is the number of units that has to be produced and sold to break-even?
1,000
using the cut-and-try method for aggregate operations planning we can determine the production requirement in units of production requirement in units of product. if the beginning inventory is 100 units, the demand forecast is 1,000
1,050
Using the cut-and-try method for aggregate operations planning we can determine the production requirement in units of product. if the beginning inventory is 100 units, the demand forecast is 1,200, and the necessary safety stock is 20% of the demand forecast, which of the following is the production requirement?
1,340
Using the assembly-line balancing procedure what is the required cycle time, in minutes per unit, if the daily production is 480 minutes and the required daily output is 46 units?
10.43
A company must perform a maintenance project consisting of seven activities. The activities, their predecessors, and their respective time estimates are presented here: Using CPM, what is the Latest Finish Time for the last activity in the project (i.e., the total time to complete the project)?
11 days
a simple project listing of the five activities, their predecessors, and their respective time estimates are presented below: Using CPM, what is the Latest Finish Time for the last activity in this project (i.e., the total time to complete the project)?
12 days
using the cut-and-try method for aggregate operations planning we can determine the production requirement in units of product. if beginning inventory is 4,000 units, the demand forecast is 2,900 units, and the required safety stock is 10% of the demand forecast, what is the production requirement?
1500
which of the following costs are relevant to aggregate operations planning?
BACKORDERING COST
you are looking at a chart that has the terms BCWS , BCWP, and AC indicating lines on the chart, what kind of chart are you looking at?
EVM Chart
Which of the following is not a suggestion for managing queues presented in the textbook
periodically close the service channel to temporarily disperse the line
Which of the following is a characteristic that can be used to guide the design of service systems?
services cannot be invetoried
which of the following is a characteristic that can be used to guide the design of service systems?
services cannot beinventoried
Getting an autograph from a famous person might involve standing in which type of queuing line structure?
single channel, single phase
a roller coaster ride in an amusement park employs which type of queuing system line structure?
single channel, single phase
For an activity in a CPM analysis the Early Finish time is 20 and the Late Finish time is 20. Which of the following statements is true?
the activity is on the critical path
one of the advantages of a functional project organizational structure is that a team member can work on several projects
true
