QUESTIONS AND CORRECT ANSWERS
Tribology is the science behind friction and wear and is helping engineers solve issues with
meeting government demands for improving fuel economy to 54.5 MPG by 2025
True
False - CORRECT ANSWERS True
When discussing the details of an engine oil report, one of the most important properties is the:
Anti-freeze in the oil
Fuel in the oil
Total base number (TBN)
Zinc in the oil - CORRECT ANSWERS Total base number (TBN)
An oil's viscosity is defined mainly by the size of the oil's molecules. the smaller molecules'
structures are thicker or higher (heavier) and the larger molecules are thinner (lighter).
True
False - CORRECT ANSWERS False
Which of the following viscosities are the most viscous
20
30
50
0 - CORRECT ANSWERS 50
When discussing engine oil monitoring systems, engineers have figured out a fairly accurate and
reliable way to calculate the remaining oil life without having to actually sample the oil.