CPM Maintenance and Reliability 2

Question 1

Which metric represents the average time between consecutive failures of a repairable system?

Accepted Answer

Mean Time Between Failures (MTBF)

Answer

MTBF measures the average elapsed time between failures of a repairable system, serving as a key reliability indicator.

Question 2

A plant implements a maintenance strategy where assets are replaced or serviced at fixed time intervals regardless of condition. This is called:

Accepted Answer

Preventive maintenance

Answer

Preventive (or time-based) maintenance schedules service at fixed intervals to reduce the likelihood of failure, independent of equipment condition.

Question 3

In Reliability-Centered Maintenance (RCM), the primary objective is to:

Accepted Answer

Preserve system function at the lowest cost

Answer

RCM focuses on preserving system functions safely and cost-effectively by selecting the most appropriate maintenance strategy for each failure mode.

Question 4

A root cause analysis (RCA) of a recurring pump failure reveals that inadequate lubrication is the root cause. What type of root cause is this?

Accepted Answer

Physical root cause

Answer

A physical root cause is the actual material condition (such as lack of lubrication) that directly caused the failure.

Question 5

Which of the following is NOT a component of Overall Equipment Effectiveness (OEE)?

Accepted Answer

Maintainability

Answer

OEE is calculated from Availability, Performance, and Quality; maintainability is a reliability concept but not an OEE component.

(CPM) Certified Plant Manager Practice Test