Deck 20: Maintenance– Static

Question 1

Factors affecting the decision of how much preventive maintenance is desirable typically include all of the following except:

A) age of equipment.
B) type of product.
C) degree of technology.
D) type of production process.
E) condition of equipment.

Answer 1

B

Question 2

Breakdown maintenance includes activities such as equipment inspection and adjustment.

Answer 2

False

Question 3

The goal of maintenance is to maintain the productive system in good working order while minimizing:

A) total preventive maintenance costs.
B) total breakdown maintenance costs.
C) total maintenance costs.
D) the difference between preventive and breakdown costs.
E) the ratio of breakdown to preventive maintenance costs.

Answer 3

C

Question 4

In the broadest sense, preventive maintenance extends back to the installation stage of equipment and facilities.

Question 5

Maintenance activities are often organized into the following two groups:

A) breakdown maintenance and preventive maintenance
B) breakdown maintenance and predictive maintenance
C) preventive maintenance and predictive maintenance
D) equipment maintenance and breakdown maintenance
E) equipment maintenance and buildings maintenance

Question 6

___________ is most closely associated with breakdown maintenance.

A) Equipment adjustment
B) Equipment cleaning
C) Equipment inspection
D) Repair of broken parts
E) Replacement of worn parts

Question 7

Pareto analysis (using the 80/20 rule) is one method of determining when preventive maintenance activities should be performed.

Question 8

One basis for scheduling preventive maintenance is passage of time.

Question 9

Breakdown maintenance is best performed on a regularly scheduled basis.

Question 10

Suppose that the average time before breakdown is normally distributed with a mean of 2.5 weeks and a standard deviation of .4 weeks. If breakdowns cost an average of $1,200 and preventive maintenance costs $800, what is the optimal maintenance interval?

A) Every .67 weeks
B) Every .33 weeks
C) Every 2.67 weeks
D) Every 3.25 weeks
E) Every 3.12 weeks

Question 11

The goal of maintenance is to minimize cost.

Question 12

The goal of maintenance is to maintain the productive system in good working order while minimizing or eliminating the cost of preventive maintenance.

Question 13

Degree of technology is a factor affecting the decision of how much preventive maintenance is desirable.

Question 14

Suppose that for a particular piece of machinery, the frequency distribution of monthly breakdowns is as follows:
The cost of a breakdown is $2,000, and the cost of a preventive maintenance program is $2,000 per month. If the preventive maintenance program is adopted, the probability of a machine breakdown is negligible. How much better off per month would the firm be if it adopted preventive maintenance?

A) $100 worse off
B) $200 worse off
C) $100 better off
D) $200 better off
E) $2,000 better off

Question 15

In the area of maintenance, the Pareto phenomenon is reflected in the fact that, regardless of problem classification, all equipment will justify about the same expense.

Question 16

Ideally, preventive maintenance will be performed before a breakdown or failure.

Question 17

Breakdown maintenance is _____________; preventive maintenance is _________.

A) reactive; proactive
B) proactive; reactive
C) expensive; inexpensive
D) inexpensive; expensive
E) easy; hard

Question 18

As a piece of equipment begins to break down more often, the manager is often faced with a trade-off in which __________ are weighed against the __________.

A) failure rates; maintenance probabilities
B) maintenance intervals; maintenance programs
C) operating costs; variable costs
D) replacement costs; continued maintenance costs
E) fixed costs; maintenance costs

Question 19

Suppose that for a particular piece of machinery, the frequency distribution of monthly breakdowns is as follows:
The cost of a breakdown is $2,000, and the cost of a preventive maintenance program is $2,000 per month. If the preventive maintenance program is adopted, the probability of a machine breakdown is negligible. How much better off per month would the firm be if it adopted preventive maintenance?

A) $100 worse off
B) $200 worse off
C) $100 better off
D) $200 better off
E) $2,000 better off

Question 20

Potential costs of equipment breakdown do not include:

A) loss of output.
B) cost of idle workers.
C) damage to other equipment.
D) replacement of worn parts.
E) injuries.

Question 21

In the broadest sense, equipment and facilities preventive maintenance extends back to the:

A) design and selection stagE.
B) procurement stage.
C) installation stage.
D) pilot-testing stage.
E) implementation stage.

Question 22

Which of the following is the primary consideration with regard to preventive maintenance?

A) what technology to use
B) how varied the maintenance will be
C) how often the maintenance will occur
D) which products it will be provided to
E) who will do it

Question 23

The type of maintenance which is periodic in nature is:

A) breakdown maintenance.
B) predictive maintenance.
C) preventive maintenancE.
D) corrective maintenance.
E) all of the choices.

Question 24

Attempting to determine when preventive maintenance activities should be performed is called:

A) breakdown maintenance.
B) forecastive maintenance.
C) preventive maintenance.
D) predictive maintenancE.
E) corrective maintenance.

Question 25

The total maintenance cost curve (preventive maintenance cost plus breakdown and repair cost):

A) slopes up as the number of preventive maintenances increases.
B) slopes down as the number of preventive maintenances increases.
C) starts low, increases rapidly, and then drops back down as the number of preventive maintenances increases.
D) starts high, drops gradually, but then goes back up as the number of preventive maintenances increases.
E) remains relatively flat as the number of preventive maintenances increases.

Question 26

Which of the following would not improve the performance of a breakdown program?

A) more trained personnel
B) short lead times for replacement parts
C) standby equipment
D) cross-training repair personnel
E) reducing inventories of spare parts

Question 27

The average time before breakdown of a machine is normally distributed and has a mean of nine weeks and a standard deviation of 1.5 weeks. If breakdown cost averages $1,500 and preventive maintenance costs $500, what is the optimal preventive maintenance interval?

A) 3.8 weeks
B) 8.4 weeks
C) 9.6 weeks
D) 6.9 weeks
E) 7.2 weeks

Question 28

Preventive maintenance is generally scheduled on the basis of:

A) planned inspections.
B) passage of time.
C) number of operating hours.
D) all of the choices.
E) none of the choices.

Question 29

The major approaches used in plans to deal with breakdowns include all of the following except:

A) standby equipment.
B) inventories of spare parts.
C) operator repair of minor problems.
D) readily available repair personnel.
E) All are major approaches.

Question 30

A reactive approach to maintenance is _____________ maintenance.

A) planned
B) breakdown
C) proactive
D) predictive
E) Preventive

Question 31

Ideally, preventive maintenance will be performed:

A) after a planned inspection.
B) after the passage of a specified period of time.
C) after a predetermined number of operating hours.
D) just prior to the start of the workday.
E) just prior to a breakdown or failurE.

Question 32

In the area of maintenance, the Pareto phenomenon is reflected in the fact that:

A) all equipment justifies about the same expense.
B) a majority of equipment will justify considerable expense.
C) a few pieces of equipment will justify little expense.
D) a few pieces of equipment will justify considerable expensE.
E) no piece of equipment will justify major expense; it's better to replace.

Question 33

"Total productive maintenance" is best described as:

A) avoiding all breakdown maintenance.
B) doing a great deal of preventive maintenance to try to avoid breakdown maintenance.
C) a JIT approach in which workers perform preventive maintenance on the machines they operatE.
D) extending preventive maintenance back to design.
E) none of these.

Question 34

Breakdown programs often are prioritized such that some equipment gets a lot of attention and other equipment gets very little. This typically reflects the fact that breakdowns are consistent with:

A) Pareto phenomenA.
B) production interruptions.
C) supply disturbances.
D) cross-trained workers.
E) lean operations.

Question 35

The optimum amount of preventive maintenance occurs when the production system is kept in good working order and:

A) total breakdown costs are at a minimum.
B) total preventive maintenance costs are at a minimum.
C) each maintenance component cost is at a minimum.
D) total maintenance costs are at a maximum.
E) total maintenance costs are at a minimum.

Question 36

The average time before breakdown of a machine is normally distributed and has a mean of 18 weeks and a standard deviation of three weeks. If breakdown cost averages $2,000 and preventive maintenance costs $1,400, what is the optimal preventive maintenance interval?

A) 16.4 weeks
B) 14.6 weeks
C) 16.9 weeks
D) 19.6 weeks
E) 21.3 weeks