MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Quantum dots can be used in ________ |
| A. | Crystallography |
| B. | Optoelectronics |
| C. | Mechanics |
| D. | Quantum physics |
| Answer» C. Mechanics | |
| 2. |
Nanoscale aluminium oxide increases the _________ |
| A. | Conductivity |
| B. | Resistance |
| C. | Ductility |
| D. | Stability |
| Answer» C. Ductility | |
| 3. |
Zirconia is a hard, brittle ___________ |
| A. | Metal |
| B. | Non-metal |
| C. | Composite |
| D. | Ceramics |
| Answer» E. | |
| 4. |
The main purpose of CNTs in fuel cells is __________ |
| A. | Production of energy |
| B. | Active medium |
| C. | Catalyst |
| D. | Storage |
| Answer» E. | |
| 5. |
Which components of an automobile are envisioned to be coated with zirconia? |
| A. | Spark plugs |
| B. | Liners |
| C. | Tyres |
| D. | Brakes |
| Answer» C. Tyres | |
| 6. |
A Carbon monoxide sensor made of zirconia uses which characteristic to detect any change? |
| A. | Capacitance |
| B. | Resistivity |
| C. | Activity |
| D. | Permeability |
| Answer» D. Permeability | |
| 7. |
Aerogels can hold more energy than the separators in batteries. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which nanomaterial is used for cutting tools? |
| A. | Fullerene |
| B. | Aerogel |
| C. | Tungsten Carbide |
| D. | Gold |
| Answer» D. Gold | |
| 9. |
Nano crystalline materials synthesised by sol-gel technique results in a foam like structures called ___________ |
| A. | Gel |
| B. | Aerosol |
| C. | Foam |
| D. | Aerogel |
| Answer» E. | |
| 10. |
Which property of Nanomaterials make them suitable to be used for elimination of pollutants? |
| A. | High purity |
| B. | Better thermal conductivity |
| C. | Enhanced chemical activity |
| D. | Small size |
| Answer» D. Small size | |