Risk Assessment & Mitigation Flashcards
7 cards from real CLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Risk Assessment & Mitigation flashcards as text
In a condition-based maintenance program, what is the primary purpose of establishing alarm limits for oil analysis parameters?
Answer: To trigger timely corrective action before catastrophic failure occurs
Alarm limits signal when oil analysis results deviate enough from baseline to warrant investigation or corrective action before failure occurs.
Which type of bearing failure is most commonly associated with lubricant starvation risk?
Answer: Adhesive wear and smearing
Lubricant starvation removes the protective film, causing direct metal-to-metal contact and adhesive wear (smearing) on rolling element surfaces.
What is the PRIMARY risk when lubricants from two different suppliers are mixed in a reservoir without compatibility testing?
Answer: Additive packages may react adversely, causing precipitation or foam
Different additive chemistries can react when mixed, potentially causing sludge, precipitation, foam, or loss of critical protective properties.
A facility stores lubricants in an unheated outdoor area. Which environmental risk poses the greatest threat to lubricant quality?
Answer: Water condensation inside containers from temperature cycling
Temperature cycling causes air inside containers to expand and contract, drawing in moist air that condenses as water contamination inside the drum.
When evaluating the risk of grease over-lubrication in electric motor bearings, what is the most likely consequence?
Answer: Overheating due to churning losses and potential insulation damage
Excess grease causes churning, which generates heat that can overheat the bearing and damage motor windings if grease contacts them.
Which document is the primary risk reference for identifying hazardous properties of a lubricant, including flammability and health exposure limits?
Answer: Safety Data Sheet (SDS)
The SDS (formerly MSDS) contains required safety information including flash point, toxicity, exposure limits, and emergency response procedures.
What lubrication risk is specifically assessed by measuring the dielectric strength of an insulating oil?
Answer: Ability to withstand electrical stress without breakdown
Dielectric strength measures the voltage at which an insulating oil fails electrically, with water contamination being the most common cause of reduced dielectric strength.