Question 1

Small standard deviations in the MTBF distribution of a machine tend to support a policy of preventive maintenance for that machine.

Accepted Answer

A) True 
 B)False  True

Question 2

Which of the following statements about maintenance at the Orlando Utilities Commission is FALSE?

Accepted Answer

A)  There are at least two types of preventive maintenance, including an annual maintenance and a less frequent overhaul schedule. 
B)  Its preventive maintenance program has earned the company top rankings and its competitive advantage. 
C)  Each power-generating unit is taken off-line every three years for a complete overhaul. 
D)  Each of its power-generating units is taken off-line for maintenance every one to three weeks. 
E)  Costs associated with breakdowns are several times higher than costs arising from preventive maintenance. 
A)  There are at least two types of preventive maintenance, including an annual maintenance and a less frequent overhaul schedule. 
B)  Its preventive maintenance program has earned the company top rankings and its competitive advantage. 
C)  Each power-generating unit is taken off-line every three years for a complete overhaul. 
D)  Each of its power-generating units is taken off-line for maintenance every one to three weeks. 
E)  Costs associated with breakdowns are several times higher than costs arising from preventive maintenance. D

Question 3

A system is composed of 100 identical parts. All must function for the system to function. Each component has a reliability of 0.99. What is the system reliability?

Accepted Answer

A)  0.366 
B)  1 
C)  0.999 
D)  99 
E)  0.886 
A)  0.366 
B)  1 
C)  0.999 
D)  99 
E)  0.886 A

Question 4

An oil change is to ________ maintenance as repair of a broken alternator is to ________ maintenance.

Accepted Answer

A)  preventive; breakdown 
B)  breakdown; preventive 
C)  preventive; preventive 
D)  breakdown; breakdown 
E)  preventive; infant mortality 
A)  preventive; breakdown 
B)  breakdown; preventive 
C)  preventive; preventive 
D)  breakdown; breakdown 
E)  preventive; infant mortality

Question 5

________ consists of all activities involved in maintaining capability of the system.

Accepted Answer

The answer of ________ consists of all activities involved in...

Question 6

A simple electrical motor has three components: windings, armature, and housing. These three components have reliabilities of .9998, .9992, and .9999. There is no possibility of redundant parts. What is the reliability of the motor? Round your answer to four decimal places.

Accepted Answer

(0.9998)(0

Question 7

A job consists of a series of three tasks. Task 1 is performed correctly 98% of the time, task 2 is performed correctly 99% of the time, and task 3 is performed correctly 97% of the time. What is the reliability of this job?

Accepted Answer

A)  91.27% 
B)  94.11% 
C)  97.00% 
D)  98.00% 
E)  99.00% 
A)  91.27% 
B)  94.11% 
C)  97.00% 
D)  98.00% 
E)  99.00%

Question 8

Century Digital Phone advertises phone battery life (on standby) of up to three days. The standard deviation is thought to be five hours. Tina Talbot, an employee at CDP, tested 40 of these batteries for 72 hours. One failed at 39 hours; one failed at 62 hours; one failed at 70 hours. All others completed the test. Calculate FR(%), FR(N), and MTBF.

Accepted Answer

FR(%) = 3/40 or 7.5%. FR(N) =

Question 9

________ is the use of a component in parallel to raise reliabilities.

Accepted Answer

The answer of ________ is the use of a component...

Question 10

A system has three components in parallel with reliabilities 0.9, 0.7, and 0.6. What is the system reliability?

Accepted Answer

A)  0.378 
B)  0.733 
C)  0.988 
D)  0.985 
E)  2.200 
A)  0.378 
B)  0.733 
C)  0.988 
D)  0.985 
E)  2.200

Question 11

DuLarge Marine manufactures diesel engines for shrimp trawlers and other small commercial boats. One of their CNC machines has caused several problems. Over the past 30 weeks, the machine has broken down as indicated below. Each time the machine breaks down, the firm loses an average of $5,000 in time and repair expenses.   What is the expected breakdown cost per week?

Accepted Answer

A)  $1,000 
B)  $2,000 
C)  $6,000 
D)  $10,000 
E)  $60,000 
A)  $1,000 
B)  $2,000 
C)  $6,000 
D)  $10,000 
E)  $60,000

Question 12

What is the reliability of a four-component product, with components in series, and component reliabilities of .90, .95, .96, and .99?

Accepted Answer

A)  0.8295 
B)  0.90 
C)  0.955 
D)  0.8126 
E)  0.945 
A)  0.8295 
B)  0.90 
C)  0.955 
D)  0.8126 
E)  0.945

Question 13

Which one of the following is NOT necessary to identify the optimal maintenance policy?

Accepted Answer

A)  historical data on maintenance costs 
B)  cost of performing the analysis 
C)  breakdown probabilities 
D)  breakdown occurrences 
E)  repair times 
A)  historical data on maintenance costs 
B)  cost of performing the analysis 
C)  breakdown probabilities 
D)  breakdown occurrences 
E)  repair times

Question 14

What is breakdown maintenance?

Accepted Answer

Breakdown maintenance is the r

Question 15

Reliability is the probability that a machine part or product will function properly for a specified time regardless of conditions.

Accepted Answer

A) True 
 B)False

Question 16

________ combines total quality management with a strategic view of maintenance from process equipment design to preventive maintenance.

Accepted Answer

Total prev

Question 17

Components A, B, and C are connected in series. Component D is connected in parallel to component B. Which of the following statements is TRUE?

Accepted Answer

A)  The system works only if A works, B or C works, and D works. 
B)  Component B must work for the system to work. 
C)  The system works when A works, C, works, and either B or D works. 
D)  Components B and C are backups to A. 
E)  The system works if D works, and any of A, B, or C works. 
A)  The system works only if A works, B or C works, and D works. 
B)  Component B must work for the system to work. 
C)  The system works when A works, C, works, and either B or D works. 
D)  Components B and C are backups to A. 
E)  The system works if D works, and any of A, B, or C works.

Question 18

Adding an additional part to a component or product ordinarily reduces reliability by introducing an additional source of failure.

Accepted Answer

A) True 
 B)False

Question 19

Identify the two reliability tactics and the two maintenance tactics.

Accepted Answer

The reliability tactics are: (1) improvi

Question 20

General Grant must send orders to General Butler. Carrier pigeons are the medium of choice. A single pigeon has a .7 probability of arriving at the proper destination in a timely fashion. How many pigeons, each carrying an identical set of orders, must Grant send in order for him to have 98% confidence that the orders reached General Butler?

Accepted Answer

2: 0.91 3: 0.973 4: 0.9919; on

Small standard deviations in the MTBF distribution of a machine tend to support a policy of preventive maintenance for that machine.

Which of the following statements about maintenance at the Orlando Utilities Commission is FALSE?

A system is composed of 100 identical parts. All must function for the system to function. Each component has a reliability of 0.99. What is the system reliability?

An oil change is to maintenance as repair of a broken alternator is to maintenance.

________ consists of all activities involved in maintaining capability of the system.

A simple electrical motor has three components: windings, armature, and housing. These three components have reliabilities of .9998, .9992, and .9999. There is no possibility of redundant parts. What is the reliability of the motor? Round your answer to four decimal places.

A job consists of a series of three tasks. Task 1 is performed correctly 98% of the time, task 2 is performed correctly 99% of the time, and task 3 is performed correctly 97% of the time. What is the reliability of this job?

________ is the use of a component in parallel to raise reliabilities.

A system has three components in parallel with reliabilities 0.9, 0.7, and 0.6. What is the system reliability?

What is the reliability of a four-component product, with components in series, and component reliabilities of .90, .95, .96, and .99?

Which one of the following is NOT necessary to identify the optimal maintenance policy?

What is breakdown maintenance?

Reliability is the probability that a machine part or product will function properly for a specified time regardless of conditions.

________ combines total quality management with a strategic view of maintenance from process equipment design to preventive maintenance.

Components A, B, and C are connected in series. Component D is connected in parallel to component B. Which of the following statements is TRUE?

Adding an additional part to a component or product ordinarily reduces reliability by introducing an additional source of failure.

Identify the two reliability tactics and the two maintenance tactics.

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Managing Quality

Process Strategies

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Inventory Management

Aggregate Planning and Sop

Material Requirements Planning Mrp and Erp

Short-Term Scheduling

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Exam 16: Maintenance and Reliability

Small standard deviations in the MTBF distribution of a machine tend to support a policy of preventive maintenance for that machine.

Which of the following statements about maintenance at the Orlando Utilities Commission is FALSE?

A system is composed of 100 identical parts. All must function for the system to function. Each component has a reliability of 0.99. What is the system reliability?

An oil change is to ________ maintenance as repair of a broken alternator is to ________ maintenance.

________ consists of all activities involved in maintaining capability of the system.

A simple electrical motor has three components: windings, armature, and housing. These three components have reliabilities of .9998, .9992, and .9999. There is no possibility of redundant parts. What is the reliability of the motor? Round your answer to four decimal places.

A job consists of a series of three tasks. Task 1 is performed correctly 98% of the time, task 2 is performed correctly 99% of the time, and task 3 is performed correctly 97% of the time. What is the reliability of this job?

________ is the use of a component in parallel to raise reliabilities.

A system has three components in parallel with reliabilities 0.9, 0.7, and 0.6. What is the system reliability?

What is the reliability of a four-component product, with components in series, and component reliabilities of .90, .95, .96, and .99?

Which one of the following is NOT necessary to identify the optimal maintenance policy?

What is breakdown maintenance?

Reliability is the probability that a machine part or product will function properly for a specified time regardless of conditions.

________ combines total quality management with a strategic view of maintenance from process equipment design to preventive maintenance.

Components A, B, and C are connected in series. Component D is connected in parallel to component B. Which of the following statements is TRUE?

Adding an additional part to a component or product ordinarily reduces reliability by introducing an additional source of failure.

Identify the two reliability tactics and the two maintenance tactics.

Operations and Productivity

Operations Strategy in a Global Environment

Project Management

Forecasting

Design of Goods and Services

Managing Quality

Process Strategies

Location Strategies

Human Resources, Job Design, and Work Measurement

Supply Chain Management

Inventory Management

Aggregate Planning and Sop

Material Requirements Planning Mrp and Erp

Short-Term Scheduling

Lean Operations

Decision-Making Tools

Linear Programming

Transportation Models

Waiting-Line Models

Learning Curves

Simulation

Applying Analytics to Big Data in Operations Management

Filters

An oil change is to maintenance as repair of a broken alternator is to maintenance.