Multiple Choice
Technician A says that viscosity index (VI) improvers thicken oil when it becomes hot and thins it when it becomes cold. Technician B says that VI improvers thin oil when it's hot and thicken it when it's cold. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B
Correct Answer:
Verified
Correct Answer:
Verified
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