MCQOPTIONS
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| 1. |
Styrene-butadiene-rubber (SBR) as compared to natural rubber has |
| A. | poorer resistance to oxidation |
| B. | Poorer tensile strength. |
| C. | all (, ( and (. |
| D. | greater amount of heat build-up under heavy loading. |
| Answer» D. greater amount of heat build-up under heavy loading. | |