Fluid Analysis Flashcards
_________ may have identified the presence of metal particles due to wear from the journal bearing, but vibration remained low because the clearances were not excessive enough to cause vibration.
oil analysis
for many industries, vibration analysis has been the primary technique for monitoring machine health, while __________ is the preferred mathod ised in the mobile and heavy equipment industry.
oil analysis
___________ is more effective in detecting failures in hydraulic systems and reciprocating equipment.
oil analysis
__________ is preferred in detecting failures in high-speed rotating equipment.
vibration analysis
___________ lubricant and a significant contaminant in any lubrication system.
water is a poor
_______ is running the lubrication system at higher than recommended temperatures or overheating the system can also damage the fluid or system components.
Oxidation
the main cause of oxidation is ______
heat
doing ________________ indentifies not only metallic particles and contaminants suspended in the oil, but also oxidation and water content through acid monitoring and water detection.
routine oil analysis
the sample should be taken at a point where the fluid is _______
well mixed
when an oil sample is removed from a point in a circulating system, it is a ___________
live zone sample
live zone locations in the system piping, sampling downstream from system compenents and sampling upstream from filters or separators is areas to consider when locating ______________ on circulating.
oil sample collection points
contamination is measured by __________ and the __________ of a particular size
particle size and the number of particles
the size of contaminant particles is measured in ________, which are one millionth of a metre in size
microns
the number of particles is specified by ________________ standards using a range code
international organization for standardization (ISO)
one of the most important physical properties checked is the ________
oils viscosity
this is analysis by checking the flow rate of oil at ____ and ____
40c and 100c
_________ and imaging has become a valuable diagnostic tool
thermal analysis
the ________ is a non-contact instrument that is capable of scanning the temperature distribution of entire surfaces of machinery quickly and accurately.
camera
________ is the material’s ability to emit thermal radiation.
emissivity
ambient temperatures and weather conditions can have a big influence on readings. high ambient conditions can _____ an entire object, while cold ambient temperatures can cool down ___ .
heat
hot spots
the product of oxidation is gum snf vamish, sludge, acids what is the 3 harm to the system
sticky valves, blocked pilot passages, and corrosion of parts
_____ times the dead space volume before collecting your test sample with a clean and dry container; this ensures a true representation of the oil in the sample.
flush five
the bottle is ______ completely because there must be room in the container for agitating the sample at the analysis lab
not filled
