TPM & Predictive Maintenance Flashcards
7 cards from real CPM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 TPM & Predictive Maintenance flashcards as text
Which step of the 7-step autonomous maintenance process involves restoring equipment to its basic condition by eliminating contamination sources?
Answer: Step 1 – Initial cleaning and inspection
Step 1 of autonomous maintenance is initial cleaning, which exposes defects and establishes a baseline equipment condition.
A plant uses ultrasonic detection on compressed air systems. What failure mode is this technique best suited to detect?
Answer: Leaks and partial discharge
Ultrasonic detectors excel at identifying the high-frequency sound generated by compressed air leaks and electrical partial discharge.
What does the 'maintenance prevention' pillar of TPM aim to achieve during the equipment design phase?
Answer: Design equipment that requires minimal maintenance and is easy to maintain
Maintenance prevention incorporates lessons learned from existing equipment into new equipment designs to minimize future maintenance needs.
Which failure distribution pattern is best described by the Weibull distribution when the shape parameter (β) is less than 1?
Answer: Infant mortality failures decreasing over time
A Weibull shape parameter β < 1 indicates a decreasing failure rate, characteristic of infant mortality or early-life failures.
In a reliability-centered maintenance (RCM) analysis, what is the first question asked about each function?
Answer: What are the performance standards required?
RCM begins by defining functions and their associated performance standards before identifying failure modes and consequences.
A maintenance planner notices that a pump's MTTR has doubled over six months. What does this most likely indicate?
Answer: Repairs are taking longer, possibly due to parts availability or skill gaps
Increasing Mean Time To Repair (MTTR) suggests that repair activities are becoming less efficient, often due to spare parts delays or workforce skill issues.
Which lubrication principle is associated with the formation of a full fluid film between bearing surfaces, completely separating them?
Answer: Hydrodynamic lubrication
Hydrodynamic lubrication occurs when a pressurized fluid film fully separates surfaces, achieving minimal wear and friction.