MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the glass transition temperature of polybutadiene? |
| A. | -100 F |
| B. | -25 F |
| C. | 125 F |
| D. | 300 F |
| Answer» B. -25 F | |
| 2. |
What is ACM elastomer? |
| A. | Isobutylene Isoprene |
| B. | Ethylene propylene |
| C. | Polyacrylate |
| D. | Polybutadiene |
| Answer» D. Polybutadiene | |
| 3. |
Buna S rubbers consisting of over 50% styrene are considered as _________ |
| A. | Polymer |
| B. | Plastic |
| C. | Fibers |
| D. | Whisker |
| Answer» C. Fibers | |
| 4. |
__________ is a reinforcement filler. |
| A. | Carbon black |
| B. | Chinaclay |
| C. | Barium sulfate |
| D. | Chalk |
| Answer» B. Chinaclay | |
| 5. |
BUNA_S_RUBBERS_CONSISTING_OF_OVER_50%_STYRENE_ARE_CONSIDERED_AS__________?$ |
| A. | Polymer |
| B. | Plastic |
| C. | Fibers |
| D. | Whisker |
| Answer» C. Fibers | |
| 6. |
What is the glass transition temperature of polybutadiene?$ |
| A. | -100 F |
| B. | -25 F |
| C. | 125 F |
| D. | 300 F |
| Answer» B. -25 F | |
| 7. |
What_is_ACM_elastomer?$ |
| A. | Isobutylene Isoprene |
| B. | Ethylene propylene |
| C. | Polyacrylate |
| D. | Polybutadiene |
| Answer» D. Polybutadiene | |
| 8. |
What is Hypalon? |
| A. | Polysulphide |
| B. | Urethane |
| C. | Chlorosulfonyl polyethylene |
| D. | Isobutylene Isoprene |
| Answer» D. Isobutylene Isoprene | |
| 9. |
__________ is a reinforcement filler? |
| A. | Carbon black |
| B. | Chinaclay |
| C. | Barium sulfate |
| D. | Chalk |
| Answer» B. Chinaclay | |
| 10. |
Addition of ______ results in the vulcanization of rubber. |
| A. | Nitrogen |
| B. | Sulfur |
| C. | Carbon monoxide |
| D. | Particulate matter |
| Answer» C. Carbon monoxide | |
| 11. |
Which of the following is not a characteristic of natural rubber? |
| A. | Cheap |
| B. | High strength |
| C. | High hysteresis |
| D. | Abrasion and tear resistant |
| Answer» D. Abrasion and tear resistant | |
| 12. |
What is the hardening temperature of unvulcanized natural rubber? |
| A. | 5<sup>o</sup>C |
| B. | 30<sup>o</sup>C |
| C. | 105<sup>o</sup>C |
| D. | 150<sup>o</sup>C |
| Answer» B. 30<sup>o</sup>C | |
| 13. |
What is the service temperature of polysiloxane? |
| A. | -50 to 150 |
| B. | -50 to 105 |
| C. | -60 to 120 |
| D. | -90 to 250 |
| Answer» E. | |
| 14. |
What is Buna N rubber? |
| A. | Styrene-butadiene |
| B. | Chloroprene |
| C. | Polyisoprene |
| D. | Acrylonitrile butadiene |
| Answer» E. | |
| 15. |
What is the percentage of elongation of styrene butadiene? |
| A. | 450-500% |
| B. | 400-600% |
| C. | 500-700% |
| D. | 800% |
| Answer» B. 400-600% | |
| 16. |
What is the trade name for natural polyisoprene? |
| A. | Natural rubber |
| B. | Neoprene |
| C. | Silicone |
| D. | Buna acrylonitrile |
| Answer» B. Neoprene | |