MCQOPTIONS
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This section includes 8 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 of the following does not affect the critical temperature, Tc? |
| A. | theat of polymerization |
| B. | tconditions affecting monomer concentration |
| C. | treaction medium |
| D. | tnone of the mentioned |
| Answer» E. | |
| 2. |
How does the viscosity of molten sulphur vary near 160 C and above it? |
| A. | tgoes minimum and then rises sharply |
| B. | tgoes maximum and falls rapidly |
| C. | tremains constant |
| D. | tcannot be determined |
| Answer» B. tgoes maximum and falls rapidly | |
| 3. |
What is the approximate ceiling temperature of tetrahydrofuran? |
| A. | t70 C |
| B. | t160 C |
| C. | t300 C |
| D. | tnone of the mentioned |
| Answer» B. t160 C | |
| 4. |
What is the critical temperature called, if H and S are both positive in radical polymerization? |
| A. | tceiling temperature |
| B. | tfloor temperature |
| C. | ttheta temperature |
| D. | t all of the mentioned |
| Answer» C. ttheta temperature | |
| 5. |
What is the critical temperature Tc called, if H and S are both negative in radical polymerization? |
| A. | tceiling temperature |
| B. | tfloor temperature |
| C. | ttheta temperature |
| D. | t all of the mentioned |
| Answer» B. tfloor temperature | |
| 6. |
What is the value of overall rate of polymerization at ceiling temperature? |
| A. | texceptionally high |
| B. | texceptionally low |
| C. | tzero |
| D. | tcannot be determined |
| Answer» D. tcannot be determined | |
| 7. |
How the increase in temperature to higher values, does affect the equilibrium state of propagation reaction? |
| A. | tshifts forward |
| B. | tshifts backwards |
| C. | tremains constant |
| D. | tnone of the mentioned |
| Answer» C. tremains constant | |
| 8. |
Which of the following is not dependent on result of equilibrium condition of polymerization reaction? |
| A. | tdegree of polymerization |
| B. | tchain length distribution |
| C. | tlimiting monomer conversion |
| D. | tnone of the mentioned |
| Answer» E. | |