CMRP Reliability Engineering

Question 1

What is MTBF in reliability engineering?

Accepted Answer

Mean Time Between Failures — the average time a repairable system operates between failures

Answer

Maximum Time Before Failure

Answer

Minimum Time for Breakdown Fix

Answer

Maintenance Threshold Before Failure

Question 2

What is Root Cause Analysis (RCA)?

Accepted Answer

A systematic approach to identifying the fundamental cause of a failure or problem

Answer

Checking the foundation of equipment

Answer

Analyzing root vegetables in food processing

Answer

A financial analysis technique

Question 3

What is the difference between preventive and predictive maintenance?

Accepted Answer

Preventive is time-based; predictive uses condition monitoring data to determine when maintenance is needed

Answer

They are the same

Answer

Preventive costs more

Answer

Predictive is only for electronics

Question 4

What is the 'bathtub curve' in reliability?

Accepted Answer

A failure rate curve showing high early failures, low constant-rate failures, then increasing wear-out failures

Answer

A plumbing diagram

Answer

A curve showing equipment costs

Answer

A maintenance scheduling chart

Question 5

What is Overall Equipment Effectiveness (OEE)?

Accepted Answer

A metric combining availability, performance, and quality to measure manufacturing productivity

Answer

A safety rating

Answer

An energy efficiency rating

Answer

A maintenance cost formula

Question 6

What is a Failure Mode and Effects Analysis (FMEA)?

Accepted Answer

A systematic method for evaluating potential failure modes, their causes, and their effects on system operation

Answer

A financial audit technique

Answer

A failure reporting form

Answer

An equipment purchasing guide