MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
While synthesizing the nano cones the plasma temperature is above _________ |
| A. | 1000oC |
| B. | 1500oC |
| C. | 2000oC |
| D. | 2500oC |
| Answer» D. 2500oC | |
| 2. |
The preferred opening angles of the nano cones are __________ |
| A. | 20, 30, 40 |
| B. | 20, 40, 60 |
| C. | 20, 40, 80 |
| D. | 20, 40, 50 |
| Answer» C. 20, 40, 80 | |
| 3. |
Nano cones are the predominant structures made with _________ |
| A. | Carbon |
| B. | Nitrogen |
| C. | Hydrogen |
| D. | Silicon |
| Answer» B. Nitrogen | |
| 4. |
If pn-junctions were built with nano wires then the next step is to build _________ |
| A. | Transistors |
| B. | Logic gates |
| C. | Resistors |
| D. | Transducers |
| Answer» C. Resistors | |
| 5. |
Nano wires are used in ________ |
| A. | Transistors |
| B. | Resistors |
| C. | Capacitors |
| D. | Transducers |
| Answer» B. Resistors | |
| 6. |
A suspended nano wire is a wire that is produced in the ___________ |
| A. | Air medium |
| B. | Vaccum |
| C. | Low vaccum chamber |
| D. | High vaccum chamber |
| Answer» E. | |
| 7. |
The diameter of the nano wire is about __________ |
| A. | 10-6m |
| B. | 10-3m |
| C. | 10-8m |
| D. | 10-9m |
| Answer» E. | |
| 8. |
WHILE_SYNTHESIZING_THE_NANO_CONES_THE_PLASMA_TEMPERATURE_IS_ABOVE_________?$ |
| A. | 1000<sup>o</sup>C |
| B. | 1500<sup>o</sup>C |
| C. | 2000<sup>o</sup>C |
| D. | 2500<sup>o</sup>C |
| Answer» D. 2500<sup>o</sup>C | |
| 9. |
THE_PREFERRED_OPENING_ANGLES_OF_THE_NANO_CONES_ARE__________?$ |
| A. | 20, 30, 40 |
| B. | 20, 40, 60 |
| C. | 20, 40, 80 |
| D. | 20, 40, 50 |
| Answer» C. 20, 40, 80 | |
| 10. |
Nano cones are the predominant structures made with________? |
| A. | Carbon |
| B. | Nitrogen |
| C. | Hydrogen |
| D. | Silicon |
| Answer» B. Nitrogen | |
| 11. |
Nano wires are also used as lasers. |
| A. | False |
| B. | True |
| Answer» C. | |
| 12. |
If pn-junctions were built with nano wires then the next step is to build_________ |
| A. | Transistors |
| B. | Logic gates |
| C. | Resistors |
| D. | Transducers |
| Answer» C. Resistors | |
| 13. |
Nano wires are used in________ |
| A. | Transistors |
| B. | Resistors |
| C. | Capacitors |
| D. | Transducers |
| Answer» B. Resistors | |
| 14. |
For nano metres whose diameters less than ________ are used as welding purposes. |
| A. | 10nm |
| B. | 20nm |
| C. | 30nm |
| D. | 40nm |
| Answer» B. 20nm | |
| 15. |
A suspended nano wire is a wire that is produced in the___________ |
| A. | Air medium |
| B. | Vaccum |
| C. | Low vaccum chamber |
| D. | High vaccum chamber |
| Answer» E. | |
| 16. |
Which of the following are the super conducting wires? |
| A. | YBCO |
| B. | Ni |
| C. | Pt |
| D. | Au |
| Answer» B. Ni | |
| 17. |
The diameter of the nano wire is about __________ |
| A. | 10<sup>-6</sup>m |
| B. | 10<sup>-3</sup>m |
| C. | 10<sup>-8</sup>m |
| D. | 10<sup>-9</sup>m |
| Answer» E. | |