MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Polymer Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which material is made to react with polymer latex of polychloroprene to set a desired plasticity when modification with sulphur is done? |
| A. | ttricresyl phosphate |
| B. | ttriethylthiuram sulphide |
| C. | ttetraethylthiuram sulphide |
| D. | tdioctyl phthalate |
| Answer» D. tdioctyl phthalate | |
| 2. |
Which type polymerization is used to produce Polychloroprene commercially? |
| A. | tsolution polymerization |
| B. | tbulk polymerization |
| C. | temulsion polymerization |
| D. | tall of the mentioned |
| Answer» D. tall of the mentioned | |
| 3. |
What is the IUPAC name of the monomer of polychloroprene? |
| A. | t2-chloro-1,3-butadiene |
| B. | t3,4-dichlorobut-1-ene |
| C. | t1-chloro-1,3-butadiene |
| D. | tnone of the mentioned |
| Answer» B. t3,4-dichlorobut-1-ene | |
| 4. |
What is the correct order of the poor resilience characteristics in the given rubbers? |
| A. | tNR>SBR>BR |
| B. | tBR>NR>SBR |
| C. | tSBR>BR>NR |
| D. | tBR>SBR>NR |
| Answer» C. tSBR>BR>NR | |
| 5. |
Which configuration of butadiene units is present in highest amount in SBR at 50 C? |
| A. | ttrans-1,4 |
| B. | tcis-1,4 |
| C. | tcis-1,2 |
| D. | tall of the mentioned |
| Answer» B. tcis-1,4 | |
| 6. |
Which of the following catalyst is used to obtain polybutadiene of cis content <40%? |
| A. | tcoordination catalyst based on Ni, Co |
| B. | t redox catalyst |
| C. | tzeiglar natta catalyst |
| D. | tbutyl lithium catalyst |
| Answer» E. | |