A 'Blotter test' is a test performed on the...

Question 1 / 270705eccefa2bacbc34ba4d478f8

Question 1 of 270705eccefa2bacbc34ba4d478f8

A 'Blotter test' is a test performed on the lube oil of a diesel engine which can determine ______.

Question 1 of 27070

A 'Blotter test' is a test performed on the lube oil of a diesel engine which can determine ______.

🔍 Key Concepts

• Purpose of a blotter (filter paper) test on lube oil • What visual changes in the oil spot can reveal about oil condition • Relationship between oil contamination and viscosity changes

💭 Think About

• When you drop lube oil on clean white paper and let it spread, what are you actually looking for in the stain? • Which property among the options would reasonably be judged by a simple visual spreading/soaking test rather than by lab instruments? • How would fuel dilution, soot, or oxidation show up in the pattern of the oil spot, and which listed property would those mostly affect?

✅ Before You Answer

• Remember that specific gravity and flash point normally require precise instruments, not just paper tests • Think about what TBN (Total Base Number) measures and whether a paper spot could show that directly • Focus on which option is most closely tied to how freely the oil spreads or resists spreading on the blotter

Question 1 of 27070

A 'Blotter test' is a test performed on the lube oil of a diesel engine which can determine ______.

the specific gravity of the oil

the TBN number of the oil

the flash point of the oil

a change in the oils viscosity