MCQOPTIONS
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MCQOPTIONS
| 1. |
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to |
| A. | Reduce its viscosity |
| B. | Increase its viscosity |
| C. | Reduce the variation in its viscosity with temperature |
| D. | Increase the variation in its viscosity with temperature |
| Answer» D. Increase the variation in its viscosity with temperature | |