The time before a breakdown is normally distributed and has a mean of 4 weeks and a standard deviation of .7 weeks. The value of z is -.84. What is the calculated preventive maintenance interval?

Multiple Choice

• 2.50 weeks

• 2.95 weeks

• 3.41 weeks

• 3.87 weeks

Complete this statement. "The age and condition of equipment, degree of technology involved and type pf production will all determine "

Multiple Choice

• the frequency of breakdowns.

• how much preventive maintenance is desirable.

• The total cost of a breakdown.

• The schedule of preventive maintenance.

Dealing with breakdowns only after they occur is an example of what type of maintenance?

Multiple Choice

• preventive

• failure

• breakdown

• reliability centred

What would be the result of poor maintenance to equipment and machinery?

Multiple Choice

• Missed delivery dates

• Expected number of breakdowns would increase

• Quality would suffer

• All of the responses are results of poor maintenance