MCQOPTIONS
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MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Manufacturing Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Thermosetting plastics become softer upon heating. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Thermoplastics become softer upon heating. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following is a secondary bond network of thermoplastics? |
| A. | 1-Dimensional |
| B. | 3-Dimensional |
| C. | 2-Dimensional |
| D. | 0-Dimensional |
| Answer» B. 3-Dimensional | |
| 4. |
Thermoplastics have _____________ |
| A. | 1-Degree bond |
| B. | 2-Degree bond |
| C. | 3-Degree bond |
| D. | 0-Degree bond |
| Answer» C. 3-Degree bond | |
| 5. |
Which of the following is a primary bond network of thermosetting plastics? |
| A. | 1-Dimensional |
| B. | 3-Dimensional |
| C. | 2-Dimensional |
| D. | 0-Dimensional |
| Answer» C. 2-Dimensional | |
| 6. |
Thermosetting plastics have ____________ |
| A. | 1-Degree bond |
| B. | 2-Degree bond |
| C. | 3-Degree bond |
| D. | 0-Degree bond |
| Answer» B. 2-Degree bond | |
| 7. |
The polymerization of two or more chemically different monomers forming a cross link polymer along with a by-product (can be either water or ammonia) is termed as ____________ |
| A. | is termed as ____________a) addition polymerization |
| B. | copolymerization |
| C. | condensation polymerization |
| D. | chain-growth polymerization |
| Answer» D. chain-growth polymerization | |
| 8. |
The polymerization of two or more chemically different monomers forming a long molecular chain is termed as ____________ |
| A. | addition polymerization |
| B. | copolymerization |
| C. | condensation polymerization |
| D. | chain growth polymerization |
| Answer» C. condensation polymerization | |
| 9. |
The polymerization of two or more chemically similar monomers forming a long molecular chain is termed as ____________ |
| A. | addition polymerization |
| B. | copolymerization |
| C. | condensation polymerization |
| D. | step-growth polymerization |
| Answer» B. copolymerization | |
| 10. |
THERMOSETTING_PLASTICS_BECOME_SOFT_ON_HEATING.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
THERMOPLASTICS_BECOME_SOFT_ON_HEATING.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Secondary bond network of thermoplastic is ? |
| A. | 1-Dimensional |
| B. | 3-Dimensional |
| C. | 2-Dimensional |
| D. | None of the mentioned |
| Answer» B. 3-Dimensional | |
| 13. |
Thermoplastics have |
| A. | 1 degree bond |
| B. | 2 degree bond |
| C. | 3 degree bond |
| D. | None of the mentioned |
| Answer» C. 3 degree bond | |
| 14. |
Primary bond network of thermosetting plastic is : |
| A. | 1-Dimensional |
| B. | 3-Dimensional |
| C. | 2-Dimensional |
| D. | None of the mentioned |
| Answer» C. 2-Dimensional | |
| 15. |
Thermosetting plastics have |
| A. | 1 degree bond |
| B. | 2 degree bond |
| C. | 3 degree bond |
| D. | None of the mentioned |
| Answer» B. 2 degree bond | |
| 16. |
Which of the following additive is used as an initiator in polymerization reaction? |
| A. | Benzoyl peroxide |
| B. | Mica |
| C. | Glass powder |
| D. | Hydrogen peroxide |
| Answer» E. | |
| 17. |
When two or more chemically different monomers are polymerized to form a cross link polymer along with some byproduct such as water or ammonia then the process is known as : |
| A. | Addition polymerization |
| B. | Copolymerization |
| C. | Condensation polymerization |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 18. |
When two or more chemically different monomers are polymerized to form a long molecular chain then the process is known as : |
| A. | Addition polymerization |
| B. | Copolymerization |
| C. | Condensation polymerization |
| D. | None of the mentioned |
| Answer» C. Condensation polymerization | |
| 19. |
When two or more chemically similar monomers are polymerized to form a long molecular chain then the process is known as : |
| A. | Addition polymerization |
| B. | Copolymerization |
| C. | Condensation polymerization |
| D. | None of the mentioned |
| Answer» B. Copolymerization | |