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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. | |