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"

Question

Quizplus · Accepted Answer

VI improvers thicken oil when it becomes hot and thins it when it becomes cold.

Technician a Says That Viscosity Index (VI) Improvers Thicken Oil