MTBF Flashcards
(24 cards)
What does MTBF stand for?
Mean Time Between Failure
True or False: MTBF is a measure of system reliability.
True
Fill in the blank: MTBF is calculated as the total operating time divided by the number of failures during that time.
total operating time
What is the formula to calculate MTBF?
MTBF = Total Operating Time / Number of Failures
MTBF is typically measured in which unit?
Hours
True or False: A higher MTBF indicates better reliability.
True
What is the relationship between MTBF and system uptime?
Higher MTBF generally indicates higher system uptime.
What type of industries commonly use MTBF as a metric?
Manufacturing, IT, and aerospace industries.
Multiple Choice: Which of the following is NOT a factor in calculating MTBF? A) Total Operating Time B) Number of Failures C) Maintenance Costs
C) Maintenance Costs
Short Answer: Why is MTBF important for maintenance planning?
It helps predict when maintenance should occur to prevent failures.
Fill in the blank: MTBF is often used in conjunction with ______ to evaluate system performance.
Mean Time To Repair (MTTR)
What does a low MTBF indicate about a system?
It indicates frequent failures and potentially poor reliability.
True or False: MTBF can be used to compare the reliability of different systems.
True
What is the impact of improving MTBF on overall operational costs?
It can reduce operational costs by minimizing downtime.
Fill in the blank: To improve MTBF, organizations often invest in ______ and training.
quality control
Short Answer: How can historical failure data be used in relation to MTBF?
It can be analyzed to calculate MTBF and identify areas for reliability improvement.
Multiple Choice: Which of the following would likely increase MTBF? A) Increased maintenance frequency B) Improved design C) More operational hours
B) Improved design
What does it mean if MTBF is reported as 500 hours?
On average, the system is expected to fail once every 500 hours of operation.
True or False: MTBF can be used to set performance benchmarks.
True
Fill in the blank: Organizations may set a target MTBF as part of their ______ strategy.
reliability
What does the ‘Mean Time To Failure’ (MTTF) measure in relation to MTBF?
MTTF measures the average time until the first failure, whereas MTBF measures the time between subsequent failures.
Short Answer: In what way can MTBF influence customer satisfaction?
Higher MTBF can lead to fewer disruptions, enhancing customer satisfaction.
Multiple Choice: Which of the following factors does NOT affect MTBF? A) Environmental conditions B) User training C) Color of the equipment
C) Color of the equipment
What should be done if the MTBF is lower than expected?
Investigate causes of failures and implement corrective actions.
