MCQOPTIONS
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MCQOPTIONS
This section includes 166 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
On both ends of the CNTs, which carbon nanostructure is placed? |
| A. | graphite |
| B. | diamond |
| C. | c60 |
| D. | benzene |
| Answer» D. benzene | |
| 152. |
Which property of nanoparticles provides a driving force for diffusion? |
| A. | optical properties |
| B. | high surface area to volume ratio |
| C. | sintering |
| D. | there is no such property |
| Answer» C. sintering | |
| 153. |
The four types of Artificial nanomaterials are |
| A. | carbon-based, non-metallic, composites and ceramics |
| B. | carbon-based, metallic, composites and ceramics |
| C. | carbon-based, non-metallic, composites and dendrimers |
| D. | carbon-based, metallic, composites and dendrimers |
| Answer» E. | |
| 154. |
HyFn stands for |
| A. | hydrated fluorine |
| B. | hydrolysed fluorine |
| C. | hydrolysed fullerene |
| D. | hydrated fullerene |
| Answer» E. | |
| 155. |
Solution of pure buckminsterfullerene has a colour of |
| A. | green |
| B. | purple |
| C. | pink |
| D. | yellow |
| Answer» C. pink | |
| 156. |
Nano sized polymers built from branched units are called |
| A. | dendrimers |
| B. | composites |
| C. | carbon-based materials |
| D. | metal-based materials |
| Answer» B. composites | |
| 157. |
The size of atoms is nearly |
| A. | 0.01 nm |
| B. | 0.1 nm |
| C. | 1 nm |
| D. | 10 nm |
| Answer» C. 1 nm | |
| 158. |
The major difference between the nano materials compared to the bulk form is the big fraction of the total number of atoms on the surface. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 159. |
When semiconductors are reduced to nanometres they become pure conductors. |
| A. | true |
| B. | false |
| Answer» C. | |
| 160. |
The initial tools used to help launch the nanoscience revolution were |
| A. | binoculars |
| B. | microscope |
| C. | scanning probe instruments |
| D. | interferometer |
| Answer» D. interferometer | |
| 161. |
The first talk about nano-technology was given by |
| A. | albert einstein |
| B. | newton |
| C. | gordon e. moore |
| D. | richard feynman |
| Answer» E. | |
| 162. |
The melting point of particles in nano form |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | increases then decreases |
| Answer» C. remains same | |
| 163. |
Which of the processes of materials was not described as Nanotechnology? |
| A. | separation |
| B. | creation |
| C. | processing |
| D. | consolidation |
| Answer» C. processing | |
| 164. |
A material with one dimension in Nano range and the other two dimensions are large is called |
| A. | micro-material |
| B. | quantum wire |
| C. | quantum well |
| D. | quantum dot |
| Answer» D. quantum dot | |
| 165. |
The colour of the nano gold particles is |
| A. | yellow |
| B. | orange |
| C. | red |
| D. | variable |
| Answer» E. | |
| 166. |
Nanomaterials are the materials with at least one dimension measuring less than |
| A. | 1 nm |
| B. | 10 nm |
| C. | 100 nm |
| D. | 1000 nm |
| Answer» D. 1000 nm | |