Question 1

Which of the following does NOT measure the propensity of an operation or part of an operation to fail?

Accepted Answer

A)  Availability 
B)  Reliability 
C)  Failure rate 
A)  Availability 
B)  Reliability 
C)  Failure rate A

Question 2

Identifying product or service features that are critical to various types of failure involves the use of what technique?

Accepted Answer

A)  Complaints 
B)  FMEA 
C)  Critical incident 
D)  Critical path 
A)  Complaints 
B)  FMEA 
C)  Critical incident 
D)  Critical path B

Question 3

The three tasks of failure prevention and recovery are: failure detection and analysis, failure
prevention and improving system reliability.

Accepted Answer

A) True 
 B)False  False

Question 4

Match the failure with its closest category: a band playing a sub-standard set at a concert.

Accepted Answer

A)  Supplier failure 
B)  Customer failure 
C)  Design failure 
D)  Staff failure 
E)  Facilities failure 
A)  Supplier failure 
B)  Customer failure 
C)  Design failure 
D)  Staff failure 
E)  Facilities failure

Question 5

Attempts to eliminate or reduce the chances of failure by servicing facilities at pre-planned intervals is termed:

Accepted Answer

A)  Condition-based maintenance 
B)  Preventive maintenance 
C)  Run to breakdown maintenance 
D)  Product-focused maintenance 
A)  Condition-based maintenance 
B)  Preventive maintenance 
C)  Run to breakdown maintenance 
D)  Product-focused maintenance

Question 6

Reliability is one measure of the consequences of failure of the operation.

Accepted Answer

A) True 
 B)False

Question 7

The origin of all types of failure is usually some kind of human failure.

Accepted Answer

A) True 
 B)False

Question 8

There are a number of forms of failure analysis. An approach that enables all faulty products to be traceable is:

Accepted Answer

A)  Fault tree analysis 
B)  Complaint analysis 
C)  Product liability 
D)  Failure mode and effect analysis 
E)  Accident investigation
F) Critical incident analysis 
A)  Fault tree analysis 
B)  Complaint analysis 
C)  Product liability 
D)  Failure mode and effect analysis 
E)  Accident investigation
F) Critical incident analysis

Question 9

A machine that partially breaks down and is only able to work at half its normal rate is an example of a:

Accepted Answer

A)  Supplier failure 
B)  People failure 
C)  Design failure 
D)  Facilities failure 
A)  Supplier failure 
B)  People failure 
C)  Design failure 
D)  Facilities failure

Question 10

If components in a system are independent, a failure in any individual component will cause the
whole system to fail.

Accepted Answer

A) True 
 B)False

Question 11

Failure mode and effect analysis (FMEA) provide a checklist procedure. Which of the following questions is NOT likely to feature on the checklist?

Accepted Answer

A)  What is the likelihood that failure will occur? 
B)  What would be the cost of avoiding failure? 
C)  What would the consequences of the failure be? 
D)  How likely is such a failure to be detected before it affects the customer? 
A)  What is the likelihood that failure will occur? 
B)  What would be the cost of avoiding failure? 
C)  What would the consequences of the failure be? 
D)  How likely is such a failure to be detected before it affects the customer?

Question 12

Which of the following is a criticism levelled against Total Productive Maintenance?

Accepted Answer

A)  It reduces machine effectiveness. 
B)  It tends to recommend preventive maintenance when it would be inappropriate. 
C)  It is hard to manage. 
D)  It leads to unplanned maintenance. 
A)  It reduces machine effectiveness. 
B)  It tends to recommend preventive maintenance when it would be inappropriate. 
C)  It is hard to manage. 
D)  It leads to unplanned maintenance.

Question 13

The failure rate is usually low and constant during the:

Accepted Answer

A)  Wear out stage 
B)  Early-life stage 
C)  Normal life stage 
A)  Wear out stage 
B)  Early-life stage 
C)  Normal life stage

Question 14

Failure of a band to turn up to a couple's wedding is an example of a ________ error.

Accepted Answer

A)  Supplier 
B)  People 
C)  Design 
D)  Facilities 
A)  Supplier 
B)  People 
C)  Design 
D)  Facilities

Question 15

For a system composed of 10 interdependent components that each have individual reliability of .99, the overall system reliability is:

Accepted Answer

A)  .40 
B)  .60 
C)  .90 
D)  .99 
A)  .40 
B)  .60 
C)  .90 
D)  .99

Question 16

Availability is calculated as the mean time between failures (MTBF) divided by:

Accepted Answer

A)  MTTR 
B)  Average fail point 
C)  (MTBF + MTTR) 
D)  (MTTR - MTBF) 
A)  MTTR 
B)  Average fail point 
C)  (MTBF + MTTR) 
D)  (MTTR - MTBF)

Question 17

Failure rate can be measured as a percentage of the total number of products tested or as the:

Accepted Answer

A)  Number of failures per batch. 
B)  Number of failures over operating time. 
C)  Defective parts per million. 
D)  Average failure point. 
A)  Number of failures per batch. 
B)  Number of failures over operating time. 
C)  Defective parts per million. 
D)  Average failure point.

Question 18

The sequence of questions at an automatic cash machine is designed to prevent:

Accepted Answer

A)  Customer failure 
B)  Design failure 
C)  Facilities failure 
D)  People failure 
A)  Customer failure 
B)  Design failure 
C)  Facilities failure 
D)  People failure

Question 19

The effect of increasing the number of interdependent components in a system is to:

Accepted Answer

A)  Exponentially decrease its reliability. 
B)  Steadily decrease its reliability. 
C)  Exponentially increase its reliability. 
D)  Steadily increase its reliability. 
A)  Exponentially decrease its reliability. 
B)  Steadily decrease its reliability. 
C)  Exponentially increase its reliability. 
D)  Steadily increase its reliability.

Question 20

The risk priority number (RPN) determines the potential cause of failure.

Accepted Answer

A) True 
 B)False

Exam 19: Answers to Selected Problems

Which of the following does NOT measure the propensity of an operation or part of an operation to fail?

Identifying product or service features that are critical to various types of failure involves the use of what technique?

The three tasks of failure prevention and recovery are: failure detection and analysis, failure prevention and improving system reliability.

Match the failure with its closest category: a band playing a sub-standard set at a concert.

Attempts to eliminate or reduce the chances of failure by servicing facilities at pre-planned intervals is termed:

Reliability is one measure of the consequences of failure of the operation.

The origin of all types of failure is usually some kind of human failure.

There are a number of forms of failure analysis. An approach that enables all faulty products to be traceable is:

A machine that partially breaks down and is only able to work at half its normal rate is an example of a:

If components in a system are independent, a failure in any individual component will cause the whole system to fail.

Failure mode and effect analysis (FMEA) provide a checklist procedure. Which of the following questions is NOT likely to feature on the checklist?

Which of the following is a criticism levelled against Total Productive Maintenance?

The failure rate is usually low and constant during the:

Failure of a band to turn up to a couple's wedding is an example of a ________ error.

For a system composed of 10 interdependent components that each have individual reliability of .99, the overall system reliability is:

Availability is calculated as the mean time between failures (MTBF) divided by:

Failure rate can be measured as a percentage of the total number of products tested or as the:

The sequence of questions at an automatic cash machine is designed to prevent:

The effect of increasing the number of interdependent components in a system is to:

The risk priority number (RPN) determines the potential cause of failure.

Introduction to Operations Management

Competitiveness, Strategic Planning, and Productivity

Demand Forecasting

Product Design

Strategic Capacity Planning

Process Design and Facility Layout

Workjob Design

Location Planning and Analysis

Management of Quality

Statistical Quality Control

Supply Chain Management

Inventory Management

Aggregate Operations Planning and Master Scheduling

Material Requirements Planning and Enterprise Resource Planning

Just-In-Time and Lean Production

Job and Staff Scheduling

Project Management

Waiting-Line Analysis

Tables

Working With the Normal Distribution

Filters