operation quiz | Nursing Term Papers
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Which of the followingis INCORRECT regarding the process capability index Cpk
Increasing inputs while holding outputs steadyDecreasing outputs while holding inputs steadyIncreasing inputs and outputs in the same proportionIncreasing outputs while holding inputs steady2. Productivity can be improved by Increasing inputs while holding outputs steady Decreasing outputs while holding inputs steady Increasing inputs and outputs in the same proportion Increasing outputs while holding inputs steady
Which of the following statements is INCORRECTregarding critical paths?
The path that takes the longest time to complete in aproject is the critical path.
Activities on the critical path must have zero slacktime.
Some non-critical activities may have zero slack time.
For any project, the (expected) project completion timeis equal to the (expected) time duration of the project’s critical path.
Suppose a project team has arrived at thefollowing time estimates for an activity: a = 4 days, m = 6 days, and b = 8days. What is the variance involved in this activity?
Suppose you are asked to determine the LowerControl Limit for a p-chart for quality control purposes. Samples are takenfrom the production line. The fraction defective is 0.008 and the standarddeviation is 0.002 based on the samples. Set z = 3. Which of the following isthe LCL of the p-chart?
The least squares method is to find out theintercept and the slope of a regression line that minimizes the sum of thesquared differences between
observed values of the independent variable and predictedvalues of the independent variable
observed values of the independent variable and predictedvalues of the dependent variable
observed values of the dependent variable and predictedvalues of the dependent variable
None of the three is correct.
Which of the following statements is INCORRECTregarding corporate missions?
They reflect a company’s purpose.
They indicate what a company intends to contribute tosociety.
They are formulated after strategies are known.
They define a company’s reason for existence.
Given forecast errors of -2, 5, 10, and -3, whatis the mean absolute deviation (MAD)?
Which of the following best describes theprocess focus strategy?
Appropriate for high-volume, low-variety production
Equipment or processes are arranged based on theprogressive steps by which a product is made.
Also known as flow shop
Appropriate for low-volume, high-variety production
According to the definition of design quality,
Quality is the degree of excellence at an acceptableprice
Quality depends on how well the product fits consumerpreferences
Even though quality cannot be defined, you know what itis
Quality is the degree to which a specific productconforms to design specifications
Which of the following project structuresutilizes people from different functional areas?
Matrix project
Integrated Task Force
Functional project
Pure project
Which of the following statements is INCORRECTregarding process variations?
It is impossible to have zero variation in production processes.
Assignable variations can be caused by workers notsufficiently trained.
Common variation is unavoidable.
A process under statistical control is a process with nocommon variation
Which of the following is NOT acharacteristic that distinguishes services from goods?
The production and consumption of goods can be separatedfrom each other, while services are often produced and consumed at the sametime.
Both goods and services need to have quality standardsestablished.
Goods are tangible and transportable.
Cost is the most important factor when determining thelocations of service facilities.
Consider a project consisting of fiveactivities. The immediate predecessors and the activity times are summarized asfollows:
Activity
Immediate Predecessor
Activity time (in days)
A
None
3
B
A
2
C
A
1
D
B
3
E
C, D
4
How long does it take to complete the project?
9 days
10 days
11 days
12 days
The output of a production system is 800 unitsper day and the total amount of labor required to produce the 800 units is 400labor hours. What is the labor productivity in this case?
The crossover point is the production quantityat which
the total variable cost of one process equals the totalvariable cost of another process
the fixed cost of a process is equal to its totalvariable cost
the total cost equals the total revenue for a process
the total cost of one process equals the total cost ofanother process
Suppose the design specification range of theouter diameter of a component is. A workertakes a sample and determines the sample mean to be 1.01 inches with a standarddeviation of 0.02 inches. What is the process capability index in this case?Set z = 3. Find the closest value.
Which of the following is NOT aqualitative forecasting method?
Sales force composite
Jury of execution opinion
Delphi method
Moving average method
Which of the following is NOT atype of Cost of Quality?
External failure cost
Internal failure cost
Return cost
Prevention cost
Which of the following statements is INCORRECTregarding CPM and PERT?
There can be more than one critical path in both CPM andPERT networks.
PERT takes uncertainty into account.
Slack times of activities cannot be calculated in PERT.
CPM assumes zero uncertainty in activity time.
The following table summarizes the demand of aproduct in the past 3 weeks:
Week
Demand
1
300
2
350
3
400
The company decides to use the 3-week simple moving average method tomake the forecast for the demand in week 4. What is the forecast for week 4?Find the closest value.
An activity in a PERT network has these time estimates:optimistic = 4, most likely = 6, and pessimistic = 8. Its expected completiontime is
In the analysis of Costs of Quality, the costincurred by employee training is classified as:
Appraisal cost
Prevention cost
Internal failure cost
External failure cost
Process A has a fixed cost of $1,000 and aper-unit variable cost of $5. Process B has a fixed cost of $2,000 and aper-unit variable cost of $4. What is the crossover point between the twoprocesses? Find the closest value.
Which of the following combines the flexibilityof a process focus with the efficiency of a product focus?
Mass customization
Standardization
Repetitive
Mass production
Suppose a company sold an average of 2,000 unitsa year in the past five years. On average, 800 units were sold in the spring,250 units in the summer, 350 units in the fall, and 600 units in the winter.Then what is the seasonal index for winter?
Contract requirements state that a project mustbe completed within 160 working days, or it will incur penalties for latecompletion. Analysis of the project network reveals an estimated projectcompletion time of 145 working days with a project variance of 225. What is thez value for the target completion time of 160 working days? Find the closestvalue.
Suppose the inputs of a process are materials,labor, and energy. Then which of the following is a multi-factor measure ofproductivity in this case?
Output / Materials
Output / (Labor + Materials)
Output / (Labor + Energy + Materials)
Output / Energy
Suppose the Earliest Start time of an activityis 5. The Earliest Finish time and the Latest Finish time of the activity are 8and 10, respectively. Which of the following statements is INCORRECT?
The activity time is 3.
The slack time is 2.
The Latest Start of the activity is 6.
The activity is not on the critical path.
A company hires you to develop a linearregression model that includes one independent variable X. Based on thecompany’s past sales data, you estimate the intercept value of the model (a) tobe 100 and the slope (b) to be 50. Given x = 8, what is the forecast based onthis linear regression model?
500
600
8000
Not enough information available
Which of the following statements is INCORRECTregarding efficiency and effectiveness?
Productivity is a measure of efficiency.
Effectiveness means doing the right things to create themost value for the company.
A process can be effective without being efficient.
A process cannot be effective without being efficient.
Which of the following is NOT anassumption of Cost of Quality?
It is cheaper to prevent than to correct.
Failures are caused.
Employees are adequately trained.
Performance can be measured.
A company wants to estimate the annual demandfor year 2015 using exponential smoothing. The actual demand in year 2014 was200. The forecast for year 2014 was 170. Set α=0.2. What is the forecast foryear 2015?
The following table represents a project thatneeds be scheduled using PERT.
Activity
Immediate Predecessor
Times (Days)
a
m
b
A
None
2
3
4
B
A
1
2
3
C
A, B
2
3
4
D
C
3
4
5
What is the expected completion time of the project?
9.5 days
10 days
11 days
12 days
A manufacturer decides to develop a chart to monitor theperformance of a process. 10 samples are taken with 5 units in each sample.Suppose the average of the 10 sample means is 55 and the average of the 10sample ranges is 8. Then what is the Lower Control Limit of this chart?Find the closest value. (A2 = 0.577 for sample size 5)
The process capability ratio of a process is1.33. Then which of the following statements is INCORRECT?
The process satisfies 3-sigma requirements.
The process satisfies 6-sigma requirements.
The process is capable.
The target value of the process is equal to the processmean
Suppose the Earliest Start time of an activityis 7 and the Latest Start time of the activity is 10. Which of the followingstatements is INCORRECT?
The Latest Finish of the activity is 12.
The slack time of the activity is 3.
The activity is not on the critical path.
The activity is not critical.
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