MLT1 Prep - Quiz 3
Quiz by Brett Scott
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25 questions
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- Q1What is the thinnest grease consistency currently available?01000630s
- Q2Should you select a higher or lower dropping point when selecting grease for a high temperature environment?LowerHigher30s
- Q3What type of thickener is often used for multipurpose grease and is most widely used?PolyureaAluminum StearateCalcium ComplexLithium (12 hydroxy or complex)30s
- Q4What can happen when 2 incompatible greases are mixed?The greases can thin outAll are correctThe oil and thickener can separateThe greases can harden30s
- Q5The primary ingredient in grease is thickener, the 2nd most abundant ingredient is oil, and the 3rd is additives.FalseTrue30s
- Q6Which type of lubricant is most often used to lubricate electric motors?GreaseOil30s
- Q7Which lubricant is most often used to lubricate high speed rolling element bearings?OilGrease30s
- Q8What type of wear mechanism is most associated with scratch marking from particle contamination?Adhesive wearAbrasive wearCorrosionCavitation30s
- Q9What type of wear mechanism is generated by flow related problems from air or vacuum bubbles?CorrosionErosionCavitation3 body abrasion30s
- Q10Abrasion & adhesion are commonly associated with...sliding contactrolling contact30s
- Q11Which lubrication regime produces a thicker oil film?BoundaryMixedElastoHydrodynamic (EHD)Hydrodynamic30s
- Q12Boundary lubrication is more likely to occur...under low speed/high load conditionsunder high speed/low load conditions30s
- Q13Which of the examples below would be considered "total loss" lubrication?kidney loop oil filtration systemsplash bath lubrication inside a gear boxoil misting or spraying on open gearsdry sump lubrication30s
- Q14What should the oil level be on an oil bath rolling element bearing (like most Durco pumps) be?halfway up on the lowest roller in the bearingthe top rolling element should be halfway coveredthe entire oil bath cavity (sump) should be full30s
- Q15In a splash bath gearbox the oil level should be....high enough to submerge the entire gearhalfway up on the gear or half the diameterhigh enough to completely cover the lowest tooth30s