MCQOPTIONS
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MCQOPTIONS
This section includes 217 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Which electronics material opposes the movement of free electrons? |
| A. | Conductor |
| B. | Insulator |
| C. | Semiconductor |
| D. | Element |
| Answer» C. Semiconductor | |
| 202. |
Material that consists of a mixture of elements is considered to be: |
| A. | an element |
| B. | an ion |
| C. | a compound |
| D. | a molecule |
| Answer» D. a molecule | |
| 203. |
Current is: |
| A. | the presence of a positive charge |
| B. | the abundance of electrons |
| C. | the movement of electrons |
| D. | the repulsion of electrons |
| Answer» D. the repulsion of electrons | |
| 204. |
A short circuit will have: |
| A. | a small current flow |
| B. | a large current flow |
| C. | no current flow |
| D. | some current flow |
| Answer» C. no current flow | |
| 205. |
A secondary cell generates dc via chemical activity; a primary cell generates dc: |
| A. | electrically |
| B. | thermally |
| C. | optically |
| D. | chemically |
| Answer» E. | |
| 206. |
If 60 J of energy are available for every 15 C of charge, what is the voltage? |
| A. | 4 V |
| B. | 60 V |
| C. | 15 V |
| D. | 0.25 V |
| Answer» B. 60 V | |
| 207. |
The shell that is closest to the nucleus of an atom can contain a maximum of two electrons. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» B. | |
| 208. |
A lead-acid battery is an example of a |
| A. | solar cell |
| B. | fuel cell |
| C. | primary battery |
| D. | secondary battery |
| Answer» E. | |
| 209. |
Which unit of charge contains 6.25 √ó 1018 electrons? |
| A. | An ampere |
| B. | A coulomb |
| C. | A volt |
| D. | A joule |
| Answer» C. A volt | |
| 210. |
One coulomb passing a point in one second is one: |
| A. | ampere |
| B. | volt |
| C. | ohm |
| D. | charge |
| Answer» B. volt | |
| 211. |
What do you call a diagram that shows the electrical connections of a circuit's components? |
| A. | A schematic diagram |
| B. | A pictorial diagram |
| C. | A block diagram |
| D. | An electrical diagram |
| Answer» B. A pictorial diagram | |
| 212. |
An atom's atomic number is determined by the number of: |
| A. | neutrons minus protons |
| B. | protons |
| C. | electrons |
| D. | neutrons |
| Answer» C. electrons | |
| 213. |
The unit for voltage is the ___ and the symbol for voltage is ___. |
| A. | joule, V |
| B. | coulomb, J |
| C. | volt, Q |
| D. | volt, V |
| Answer» E. | |
| 214. |
Which voltage source converts chemical energy to electrical energy? |
| A. | Electrical generator |
| B. | Battery |
| C. | Solar cell |
| D. | Electronic power supply |
| Answer» C. Solar cell | |
| 215. |
What is a characteristic of a secondary cell? |
| A. | rechargeability |
| B. | not rechargeable |
| C. | a dry cell |
| D. | non-liquid |
| Answer» B. not rechargeable | |
| 216. |
A voltage will influence current only if the circuit is: |
| A. | open |
| B. | insulated |
| C. | high resistance |
| D. | closed |
| Answer» E. | |
| 217. |
What is the color code for a 220 5% resistor? |
| A. | Red, Red, Brown, Gold |
| B. | Orange, Orange, Black, Gold |
| C. | Red, Red, Black, Gold |
| D. | Red, Red, Brown, Silver |
| Answer» B. Orange, Orange, Black, Gold | |