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COMM 225: Operations management > guy mcqs before midterm 2 > Flashcards

guy mcqs before midterm 2 Flashcards

1
Q

Cause-and-effect diagrams are sometimes called:

I) scatter diagrams

II) fishbone diagrams

III) Ishikawa diagrams

IV) flow diagrams
Select one:

a.
III only

b.
I, II

c.
II, III

d.
I only

e.
IV only

A

c.

II, III

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2
Q

Armand Feigenbaum was General Electric’s top expert on quality.

True

False

A

True

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3
Q

A fishbone diagram would be used to:
Select one:

a.
diagram the skeleton of a fish

b.
plot the key elements, or “bones” of a problem

c.
plot the effects of causes over time

d.
diagram the key steps, or “bones” in a process

e.
list potential causes of a problem

A

e.

list potential causes of a problem

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4
Q

Relative to traditional organizations, TQM involves;

I) greater orientation towards product rather than processes

II) more narrowly focused, specialized individual jobs

III) viewing suppliers as partners based on collaborative relations
Select one:

a.
I and II

b.
II

c.
I

d.
I, II, and III

e.
III

A

e.

III

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5
Q

Which of the following is not associated with the HACCP quality control system?
Select one:

a.
identifying potential hazards

b.
designed for companies in the food processing industry

c.
feedback of food quality based on customer surveys

d.
enforced by the Canadian Food Inspection Agency

e.
identifying all regulatory action points

A

c.

feedback of food quality based on customer surveys

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6
Q

Which of the following is not an example of an external failure cost?
Select one:

a.
handling complaints

b.
price discounts to offset inferior quality

c.
scrap and rework

d.
loss of customer goodwill

e.
warranty claims

A

c.

scrap and rework

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7
Q

The three primary determinants of quality are:
Select one:

a.
product design, product performance, and conformance to design after sale

b.
product design, product performance, and service after sale

c.
product design, product reliability, and conformance to design during production

d.
product design, process design, and conformance to design during production

e.
product design, product reliability, and service after sale

A

d.

product design, process design, and conformance to design during production

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8
Q

Process Improvement involves which of the following?

I) process mapping

II) process design

III) process analysis

IV) process re-design
Select one:

a.
I, II, III

b.
II, III, IV

c.
I, III, IV

d.
III, IV

e.
I, II, III, IV

A

c.
I, III, IV

disregards the process design

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9
Q

Which of the following is not an element of the ISO 9001 quality system?
Select one:

a.
market research

b.
purchasing as one element of product realization

c.
design and development

d.
resource management

e.
documentation of a quality manual and procedures manual

A

a.

market research

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10
Q

Reaching consensus in teams may involve which of the following methods?

I) List reduction

II) 5W2H approach

iII) Balance sheet approach

IV) Paired comparisons
Select one:

a.
I, II, III

b.
I, III, IV

c.
I, II, IV

d.
I, II, III, IV

e.
II, III, IV

A

b.
I, III, IV

disregards the 5W2H approach

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11
Q

Which of the following is not true about Juran’s views of quality?
Select one:

a.
The process of quality, not the cost of quality, must be measured.

b.
Quality planning is a key part of quality management.

c.
Roughly 80% of quality defects are controllable by management.

d.
All of the choices are true.

e.
Management must be committed to continual improvement.

A

a.

The process of quality, not the cost of quality, must be measured.

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12
Q

Planning the product design and development process falls within which major activity in the ISO 9001 quality system?
Select one:

a.
management responsibility

b.
resource management

c.
measurement, analysis, and improvement

d.
product realization

A

d.

product realization

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13
Q

A c-chart is used to monitor the number of defectives in the output of a process.
Select one:

True

False

A

False

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14
Q

A control chart used to monitor the fraction of defectives generated by a process is the:
Select one:

a.
R-chart

b.
Gantt chart

c.
p-chart

d.
x-bar chart

e.
c-chart

A

c.

p-chart

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15
Q

The term “2 sigma limits” in the context of a control chart refers to the variability of the:
Select one:

a.
population

b.
none of the choices

c.
sampling distribution

d.
process

e.
sample

A

c.

sampling distribution

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16
Q

A c-chart is used for:
Select one:

a.
fraction defective per unit

b.
ranges

c.
means

d.
percent defective

e.
number of defects per unit

A

e.

number of defects per unit

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17
Q

Control charts based on attribute data are for process characteristics that are counted rather than measured.
Select one:

True

False

A

True

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18
Q

The range chart (R-chart) is most likely to detect a change in:
Select one:

a.
number defective

b.
proportion

c.
sample size

d.
mean

e.
process variability

A

e.

process variability

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19
Q

Which of the following is not a step in the quality control planning process?
Select one:

a.
eliminate all defects found

b.
all of the choices are steps.

c.
define the quality characteristic to be controlled

d.
plan how inspection is to be done

e.
determine a quality control point in the process

A

a.

eliminate all defects found

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20
Q

Which statement is an accurate description of a process that is “capable”?
Select one:

a.
no process variability is evident

b.
process variability is greater than variation allowed by design specifications

c.
process variability is less than variation allowed by design specifications

d.
assignable variation is less than random variation

e.
assignable variation is greater than random variation

A

c.

process variability is less than variation allowed by design specifications

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21
Q

A process is “capable” if the process output falls within the design specification.
Select one:

True

False

A

True

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22
Q

The optimum level of inspection for quality control is where the:
Select one:

a.
cost of inspection is minimum

b.
total cost of inspection and defectives is maximum

c.
difference in inspection and defectives costs is minimum

d.
cost of passing defectives is minimum

e.
sum of total cost of inspection and defectives cost is minimum

A

e.

sum of total cost of inspection and defectives cost is minimum

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23
Q

Concluding that a process has changed when it has not is known as a Type I error.

Select one:

True

False

A

True

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24
Q

Concluding that a process has changed when it has not is known as a Type II error.
Select one:

True

False

A

False

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25
Q

Attributes are process characteristics that must be measured rather than counted.
Select one:

True

False

A

False

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26
Q

A shift in the process mean for a measured characteristic would most likely be detected by a ( n ):

Select one:

a.
x-bar chart

b.
R-chart

c.
p-chart

d.
s-chart

e.
c-chart

A

a.

x-bar chart

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27
Q

A control chart used to monitor the process mean is the:
Select one:

a.
R-chart

b.
Gantt chart

c.
c-chart

d.
p-chart

e.
x-bar chart

A

e.

x-bar chart

28
Q

Sample mean control charts can be created using:

I. the process standard deviation

II. the standard deviation of the sampling distribution

III. the sample range

IV. the average of sample ranges
Select one:

a.
I or II

b.
I or II or IV

c.
I or III

d.
II or IV

e.
II or III

A

b.

I or II or IV

29
Q

Which inventory model is most appropriate if unused or unsold items cannot be carried over to subsequent periods?
Select one:

a.
reorder point

b.
economic order quantity

c.
quantity discount

d.
single period

e.
economic production quantity

A

d.

single period

30
Q

The introduction of quantity discounts will cause the optimum order quantity to be:
Select one:

a.
unchanged or greater

b.
always unchanged

c.
smaller or unchanged

d.
always greater

e.
always smaller

A

a.

unchanged or greater

31
Q

Which one of the following is not generally a determinant of the reorder point (ROP)?
Select one:

a.
length of lead time

b.
lead time variability

c.
purchase cost

d.
stockout risk

e.
rate of demand

A

c.

purchase cost

32
Q

Which of the following is not included in ordering cost?
Select one:

a.
time spent paying invoices

b.
moving delivered goods to temporary storage

c.
taking an inventory count to determine how much is needed

d.
inspecting incoming goods

e.
cost of purchases

A

e.

cost of purchases

33
Q

All of the following are possible reasons for using the fixed order interval model except:
Select one:

a.
It is suited to periodic checks of inventory levels rather than continuous monitoring.

b.
Supplier policy encourages use.

c.
Grouping orders can save in shipping costs.

d.
Continuous monitoring is not practical.

e.
The required safety stock is lower than with an EOQ/ROP model.

A

e.

The required safety stock is lower than with an EOQ/ROP model.

34
Q

The fixed order interval model would be most likely to be used for this situation:
Select one:

a.
A company has switched from mass production to lean production.

b.
Grouping orders can save shipping costs.

c.
Production is done in batches.

d.
none of these

e.
Spare parts are ordered when a new machine is purchased.

A

b.

Grouping orders can save shipping costs.

35
Q

Which item would be least likely to be ordered under a fixed order interval system?
Select one:

a.
canned peas at a supermarket

b.
textbooks at a college bookstore

c.
car batteries at a “big box” retailer

d.
cards at a gift shop

e.
auto parts at an assembly plant

A

e.

auto parts at an assembly plant

36
Q

In a two-bin inventory system, the amount contained in the second bin is equal to the:
Select one:

a.
safety stock

b.
amount in the first bin

c.
EOQ

d.
optimum stocking level

e.
reorder point, the amount required until an order arrives

A

e.

reorder point, the amount required until an order arrives

37
Q

Laser scanning of universal product codes at retail checkout counters provides which of the following advantages?

I. increased speed and accuracy at checkout

II. continuous information on inventories

III. improved levels of customer service

Iv. elimination of periodic inventories
Select one:

a.
I, II, III, and IV

b.
I, II, and III only

c.
I, III, and IV only

d.
II, III, and IV only

e.
I, II, and IV only

A

b.

I, II, and III only

38
Q

Which of the following is not true for the EPQ model?
Select one:

a.
There are no ordering or setup costs.

b.
The maximum inventory occurs just after production ceases.

c.
Average inventory is calculated as one-half maximum inventory.

d.
Production rate exceeds usage rate.

e.
Usage rate is assumed to be constant.

A

a.

There are no ordering or setup costs.

39
Q

The materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. She knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to hold a kilogram of resin in inventory. She also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four (4) days.

If the order size was 1,000 kilograms of resin, what would be the average inventory level?
Select one:

a.
800 kilograms

b.
50 kilograms

c.
1,000 kilograms

d.
500 kilograms

e.
200 kilograms

A

d.

500 kilograms

40
Q

Customer focus to understand and meet customer requirements and enhance satisfaction is one aspect of which of the elements of the ISO 9001 standards?
Select one:

a.
Management responsibility

b.
Resource Management

c.
Product realization

d.
Measurement, analysis and improvement

A

a.

Management responsibility

41
Q

Of the following approaches is the broadest problem solving framework to support TQM?
Select one:

a.
Process flow diagrams

b.
Benchmarking

c.
The PDSA cycle

d.
Pareto analysis

A

c.

The PDSA cycle

42
Q

The first step in designing a TQM approach to quality is:
Select one:

a.
Develop process flow diagrams for all internal processes

b.
Find out what the customers want

c.
Obtain ISO 9001 certification

d.
Audit all your suppliers

A

b.

Find out what the customers want

43
Q

The fishbone diagram is also referred to as a _____________.
Select one:

a.
cause-and-effect diagram

b.
run chart

c.
flow chart diagram

d.
scatter diagram

A

a.

cause-and-effect diagram

44
Q

The quality guru associated with the phrase ‘quality is free’ is:
Select one:

a.
Deming

b.
Crosby

c.
Baldrige

d.
Juran

A

b.

Crosby

45
Q

Which of the following is not one of the specific elements of the ISO 9001 quality system?
Select one:

a.
Human resources

b.
Control of nonconforming products

c.
Purchasing

d.
Capital budgeting

A

d.

Capital budgeting

46
Q

Which quality guru is attributed with the view of quality as “fitness-for-use?”
Select one:

a.
Deming

b.
Crosby

c.
Baldrige

d.
Juran

A

d.

Juran

47
Q

A fishbone diagram would be used to:
Select one:

a.
diagram the skeleton of a fish

b.
plot the key elements, or “bones” of a problem

c.
diagram the key steps, or “bones” in a process

d.
plot the effects of causes over time

e.
list potential causes of a problem

A

e.

list potential causes of a problem

48
Q

Which of the following are key elements of Deming’s beliefs?

I. Implementing mass inspection whereby all output is checked for quality problems.
II. The need to reduce variation in output.

III. Motivate workers using numerical quotas based on work standards
Select one:

a.
I, II, and III

b.
I only

c.
II only

d.
II and III

e.
I and II

A

c.

II only

49
Q

Which of the following is not a specific tool for solving quality problems?
Select one:

a.
Pareto analysis

b.
cause-and-effect diagrams

c.
Taguchi charts

d.
check sheets

e.
benchmarking

A

c.

Taguchi charts

50
Q

Which of the following is not one of Deming’s 14 points of quality?
Select one:

a.
create constancy of purpose toward improvement of product/service

b.
institute work goals and standards

c.
break down barriers between departments

d.
cease dependence on mass inspection

e.
adopt the new philosophy

A

b.

institute work goals and standards

51
Q

Which of the following is not true about Juran’s views of quality?
Select one:

a.
Roughly 80% of quality defects are controllable by management.

b.
The process of quality, not the cost of quality, must be measured.

c.
Management must be committed to continual improvement.

d.
All of the choices are true.

e.
Quality planning is a key part of quality management.

A

b.

The process of quality, not the cost of quality, must be measured.

52
Q

A major distinction between quality circles and continuous improvement teams is the amount of authority given to each group.
Select one:

True

False

A

True

53
Q

Juran describes quality management as a trilogy that consists of quality planning, quality control, and quality improvement.

Select one:

True

False

A

True

54
Q

The cost of quality includes production costs, failure costs, and replacement costs.
Select one:

True

False

A

False

55
Q

The “plan” element of the PDSA cycle includes data collection and analysis to develop an improvement plan.
Select one:

True

False

A

True

56
Q

As the amount of quality inspection increases beyond the optimal level, what is not expected to occur?
Select one:

a.
Cost of inspection increases

b.
Cost of undetected defects decrease

c.
Total cost of inspection and undetected defects increases

d.
Cost of undetected defects increases

A

d.

Cost of undetected defects increases

57
Q

One reason the amount of inspection required for a high-volume, low-cost item such as pencils is relatively low is;
Select one:

a.
The production processes are usually highly reliable

b.
Defects are hard to detect

c.
Profit margins are too low

d.
The level of automation makes inspection difficult

A

a.

The production processes are usually highly reliable

58
Q

Process capability calculations account for the actual level of variability in the process and:
Select one:

a.
Upper and lower control limits.

b.
The proportion defective in samples.

c.
Average sample range.

d.
Design specifications.

A

c.

Average sample range.

59
Q

What statement summarizes the focus of the six sigma methodology for managing quality?
Select one:

a.
Minimizing process variability

b.
Experimenting with factors that affect process variation

c.
Developing products with narrow design specifications

d.
Eliminating random variation from control charts

A

a.

Minimizing process variability

60
Q

The term “2 sigma limits” in the context of a control chart refers to the variability of the:
Select one:

a.
sample

b.
population

c.
sampling distribution

d.
process

e.
none of the choices

A

c.

sampling distribution

61
Q

A c-chart is used to monitor the number of defectives in the output of a process.
Select one:

True

False

A

False

62
Q

The amount of inspection needed is governed by the costs of inspection and the expected costs of passing defective items.
Select one:

True

False

A

True

63
Q

The probability of a Type I error is the probability of concluding that only randomness is present when assignable variation exists.
Select one:

True

False

A

False

64
Q

The process capability index, indicated by Cpis calculated as the ratio of the design specification width to the process width.
Select one:

True

False

A

True

65
Q

When a process is not centred, its capability should be based on considering the upper and lower design specifications separately and not just the overall design specification width. The symbol for this case is Cpk.
Select one:

True

False

A

True

COMM 225: Operations management (17 decks)

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