Deck 25: Extension 14: Maintenance

Question 1

Proactive maintenance is periodic.

Answer 1

True

Question 2

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

Answer 2

True

Question 3

The goal of maintenance is to minimize cost.

Answer 3

False

Question 4

Cutting preventive maintenance in half will probably double the number of breakdowns.

Question 5

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

Question 6

If one operator performing preventive maintenance requires two hours to complete the job, then two operators working together should complete the preventive maintenance in one hour.

Question 7

Maintenance activities are often organized into the 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 8

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

Question 9

Breakdown maintenance is _____________; preventative maintenance is _________.

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

Question 10

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

Question 11

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

Question 12

Breakdown maintenance is best performed on a regularly scheduled basis.

Question 13

___________ is most closely associated with breakdown maintenance.

A)equipment adjustments
B)equipment cleaning
C)equipment inspection
D)repair of broken parts
E)replacement of worn parts

Question 14

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

Question 15

One basis for scheduling preventive maintenance is passage of time.

Question 16

Breakdown maintenance includes activities such as equipment inspection and adjustment.

Question 17

Cost of equipment breakdown doesn't include:

A)loss of output
B)cost of idle workers
C)damage to other equipment
D)replacement costs
E)potential safety hazard

Question 18

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 19

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)how critical to the production process

Question 20

It is best to replace a failing piece of equipment with one that will have identical capabilities as the equipment being replaced since we are already familiar with that machine.

Question 21

The frequency of breakdown of a piece of equipment per month is shown in the table.The cost of a breakdown is $1,000 and the cost of preventive maintenance is $2,000 per month.Assume that the equipment breakdown can be avoided if preventive maintenance is performed.Should the manager use preventive maintenance, or would it be better to fix the equipment when it breaks down?

Question 22

The average time before breakdown of a machine is normally distributed and has a mean of 9 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 23

The average time before breakdown of a machine is normally distributed and has a mean of 7 weeks and a standard deviation of 1.5 weeks.If breakdown cost averages $2,500 and preventive maintenance costs $500, what is the optimal preventive maintenance interval?

Question 24

The optimum amount of preventive maintenance is where:

A)Total breakdown costs are a minimum.
B)Total preventive maintenance costs are a minimum.
C)Each maintenance component cost is a minimum.
D)Total maintenance costs are a maximum.
E)Total maintenance costs are a minimum.

Question 25

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 26

Breakdown programs often are prioritized such that some equipment gets a lot of attention and others get 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 27

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 28

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 29

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 30

The average time before breakdown of a machine is normally distributed and has a mean of 18 weeks and a standard deviation of 3 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

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

"Total productive maintenance" is best described as:

A)avoiding all breakdown maintenance
B)doing a great deal of preventative maintenance to try to avoid breakdown maintenance
C)a JIT approach taking advantage of cross-training
D)extending preventative maintenance back to design
E)none of the above

Question 33

Which of the following is the primary consideration with regard to preventative 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 34

Reactive maintenance is _____________ maintenance.

A)Planned
B)After the event
C)Proactive
D)Predictive
E)Preventive

Question 35

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 above

Question 36

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 of these are major approaches.

Question 37

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 above
E)none of the above

Question 38

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

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