CRL CRL - Certified Reliability Leader Performance Metrics and KPIs Questions and Answers 1

Question 1

What does MTBF stand for in reliability engineering?

Accepted Answer

Mean Time Between Failures

Answer

Maximum Time Before Failure

Answer

Mean Total Breakdown Factor

Answer

Minimum Time Between Fixes

Question 2

How is Overall Equipment Effectiveness (OEE) calculated?

Accepted Answer

Availability × Performance × Quality

Answer

Reliability × Maintainability × Safety

Answer

Uptime ÷ Total Time × 100

Answer

MTBF ÷ (MTBF + MTTR)

Question 3

What does MTTR measure in a reliability context?

Accepted Answer

Mean Time To Repair

Answer

Maximum Total Time Required

Answer

Mean Time To Replace

Answer

Minimum Turnaround Time for Reliability

Question 4

A plant has 720 operating hours with 3 failures. What is the MTBF?

Accepted Answer

240 hours

Answer

180 hours

Answer

360 hours

Answer

720 hours

Question 5

Which KPI best measures the probability that equipment will operate without failure for a given period?

Accepted Answer

Reliability

Answer

Availability

Answer

Maintainability

Answer

OEE

Question 6

What is equipment availability if MTBF = 200 hours and MTTR = 8 hours?

Accepted Answer

96.2%

Answer

92.5%

Answer

80.0%

Answer

98.5%