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Operations Management 3 (88%)

Terms in this set (38)

Which of the following is not a characteristic of layout decisions in system design?
usually well-received by operative personnel
Which one of the following is not considered an important factor in retail layout design?
cost minimization
A cafeteria line would be an example of a process-focused layout
False
The minimum possible cycle time in a typical product layout with no parallel activities is determined by the:
longest task time
Which of the following is not true about process layouts when they are compared to product layouts?
lower unit costs
A possible disadvantage of a product layout is an inflexible system
true
The type of layout which features departments or other functional groupings in which similar activities are performed is:
process
A production line is to be designed for a job with three tasks. The task times are .4 minutes, 1.2 minutes, and .5 minutes. The maximum cycle time in minutes is:
2.1
Cellular layouts are associated with:
part families
An advantage of a U-shaped production line is that
it is more efficient than a traditional product layout.
A company needs to rebalance a product layout for producing new plastic license plates. They plan to use the assembly line six hours in order to meet projected demand of 2,160 license plates each day. The following table describes the tasks involved in the production of this product
9 seconds
A company needs to rebalance a product layout for producing new plastic license plates. They plan to use the assembly line six hours in order to meet projected demand of 2,160 license plates each day. The following table describes the tasks involved in the production of this product
93.3%
The forecasting method which uses anonymous questionnaires to achieve a consensus forecast is:
The Delphi Method
Accuracy in forecasting can be measured by
MSE
When choosing a forecasting technique, a critical trade-off that must be considered is that between
cost and accuracy
The mean absolute deviation is used to:
measure forecast accuracy
A forecast based on the previous forecast plus a percentage of the forecast error is
an exponentially smoothed forecast
Which of the following possible values of alpha would cause exponential smoothing to respond the most quickly to forecast errors?
.15
Which of the following features would not generally be considered common to all forecasts?
Historical data is available on which to base the forecast
Which of the following is/are a primary input into capacity, sales, and production planning?
demand forecasts
For the data given below, what would the naive forecast be for period 5? 58 59 60 61
61?
Forecasting techniques generally assume
continuity of some underlying causal system
Which of the following smoothing constants would make an exponential smoothing forecast equivalent to a naive forecast?
1.0
Gradual, long-term movement in time series data is called:
trend
Suppose a three-period weighted average is being used to forecast demand. Weights for the periods are as follows: wt-3 = 0.2, wt-2 = 0.3 and wt-1 = 0.5. Demand observed in the previous three periods was as follows: At-3 = 2,200, At-2 = 1,950, At-1 = 2,050. What will be the demand forecast for period t?
2050
Given an actual demand of 59, a previous forecast of 64, and an alpha of .3, what would the forecast for the next period be using simple exponential smoothing?
62.5
Given forecast errors of 5, 0, -4, and 3, what is the tracking signal?
.75; ([5+0+4+3]/4)=3; (5+0-4+3)=4; 3/4=.75
Aggregate planning is capacity planning for
intermediate range
n a service setting, the aggregate plan results in a time-phased projection of __________ requirements.
staff
Which of the following would not be a strategy associated with adjusting aggregate capacity to meet expected demand?
use back orders
One option for altering the availability of capacity is:
use of overtime or slack time
Proactive and reactive aggregate planning strategies are best associated with:
demand and capacity options
In using the chase strategy, variations in demand could be met by:
varying output during regular time by changing employment levels.
Which of the following is not an input to the aggregate planning process?
master production schedules
One option for altering the pattern of demand is:
pricing differentials
One option for altering the availability of manufacturing capacity is:
inventories
Which one of the following is not a basic option for altering demand?
subcontracting
A firm has 43 units of a certain product on hand. Forecasts for the first two planning periods are 20 units each. A production quantity of 80 units is planned to be available in period 3. Customer orders are 22 for period 1 and 17 for period 2. What is the projected on-hand inventory at the end of period 2?
1
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