MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Behaviour knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Low-density Polyethylene shows a higher degree of crystallinity than High-density Polyethylene. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Nylon 6,6 have a higher degree of crystallinity than Polyethylene. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The intermolecular bending forces are ___________ in nylon 6,6 because of the ___________ bonding. |
| A. | Stronger, covalent |
| B. | Stronger, H bonding |
| C. | Weaker, ionic |
| D. | Weaker, H bonding |
| Answer» C. Weaker, ionic | |
| 4. |
The degree of crystallinity doesn t exceed ___________ in polymers. |
| A. | 10% |
| B. | 30% |
| C. | 60% |
| D. | 80% |
| Answer» E. | |
| 5. |
Which of the following property of a polymer decreases with an increase in crystallinity? |
| A. | Tensile strength |
| B. | Impact toughness |
| C. | Stiffness |
| D. | Creep strength |
| Answer» C. Stiffness | |
| 6. |
Which of the following polymer shows maximum strength? |
| A. | PE |
| B. | PP |
| C. | PVC |
| D. | PS |
| Answer» E. | |
| 7. |
What doesn t favor the strengthening of polymers? |
| A. | Addition of glass fibers |
| B. | Addition of polar groups in the chain |
| C. | Addition of plasticizers |
| D. | Addition of bulky side groups in the chain |
| Answer» D. Addition of bulky side groups in the chain | |