MACHINE LUBRICANT ANALYST EXAM PREPARATION NEWEST
2025/2026 WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS| BRAND NEW VERSION!
If the beta ratio for a 10 micron element is 2, how efficient is the filter at collecting
10 micron particles?
- Very efficient
- Poorly efficient
- Moderately efficient
- Cannot be determined from the provided information.
Poorly efficient
Which of the follow is a common application for Friction Modifier additives?:
- High temperature gearboxes
- Automatic transmission fluids
- Flush fluids
- Steam Turbines
Automatic transmission fluids
Which two viscosity units are identical: centistokes, centipoise, SUS, mm2/sec?
- Centistokes and mm2/sec
- Centipoise and SUS
- Centipoise and mm2/sec
- Centistokes and centipoise
- Centistokes and SUS
Centistokes and mm2/sec
What are mineral oil base stocks derived from?
1|Page
, MACHINE LUBRICANT ANALYST EXAM PREPARATION
- Crude oil
- Synthetic base-stock
- Bio-based oils
- Ethylene co polymers
Crude Oil
Oxidation stability is not detectable and not monitored with:
- Acid number
- Voltammetry
- Karl Fischer
- Infra-Red (FTIR) spectroscopy
- RPVOT
Karl Fischer
What function does the reversing valve provide in the dual line system?:
- Stops the flow of lubricant into the header
- Provides alternate route when one line plugs
- Relieves system pressure to the supply container
- Transfers pressure to the other system header
Transfers pressure to the other system header
Which offers the most optimized quantity of lubricant supply to a component?:
- Dual line progressive
- Single line progressive
- Mist system
- Grease gun
Mist System
What key component is the hydraulic oil performance selection based on?:
2|Page
, MACHINE LUBRICANT ANALYST EXAM PREPARATION
- Cylinder
- Pivot point
- Filter
- Pump
Pump
Viscosity and Temperature have a linear relationship?:
- True only for mineral oils
- False
- True
- True only for synthetic oils
True
Which is not an oil application method?:
- Hand packed
- Drip feed
- Wick feed
- Mist feed
Hand packed
What benefit does Hydrofinishing bring to the lubricant base stock?:
- Increases the viscosity
- Shortens the refining process
- Reduces the cost of refining
- Enables greater stability
Enables greater stability
The lubricating properties of a grease are mainly dependent on the:
- Lubricating value of the oil used in the grease
3|Page