The MTBF Distribution of a Machine That Has Passed the Phase

question 31

Multiple Choice

The MTBF distribution of a machine that has passed the phase of early failures exhibits a normal distribution. The smaller the standard deviation of this distribution

• A) the more expensive is preventive maintenance
• B) the more likely this machine is a candidate for preventive maintenance
• C) the shorter is the time interval between breakdowns
• D) the more likely this machine will break down
• E) the more likely this machine will be maintained by a breakdown maintenance policy

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Definitions:

-plasia

A suffix used in medical terms to describe the formation, growth, or development of tissues or cells.

-blast

A suffix used in biology to denote an immature precursor cell or formative stage of development.

Asymetrical

Having parts that fail to correspond to one another in shape, size, or arrangement; lacking symmetry.

Anesthetize

The process of using drugs to induce a temporary state of insensitivity or unconsciousness for medical procedures.