MCQOPTIONS
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MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An ammeter is an electrical instrument used to measure |
| A. | current |
| B. | voltage |
| C. | resistance |
| D. | none of the above |
| Answer» B. voltage | |
| 2. |
The colored bands for a 4,700 ohm resistor with a ten percent tolerance are |
| A. | yellow, violet, red, gold |
| B. | yellow, violet, orange, gold |
| C. | yellow, violet, red, silver |
| D. | orange, violet, red, silver |
| Answer» D. orange, violet, red, silver | |
| 3. |
A thermistor is a type of |
| A. | switch |
| B. | resistor |
| C. | battery |
| D. | power supply |
| Answer» C. battery | |
| 4. |
A multimeter measures |
| A. | current |
| B. | voltage |
| C. | resistance |
| D. | current, voltage, and resistance |
| Answer» E. | |
| 5. |
A material that does not allow current under normal conditions is a(n) |
| A. | insulator |
| B. | conductor |
| C. | semiconductor |
| D. | valence |
| Answer» B. conductor | |
| 6. |
Electrons in the outer orbit are called |
| A. | nuclei |
| B. | valences |
| C. | waves |
| D. | shells |
| Answer» C. waves | |
| 7. |
Free electrons make current possible. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 8. |
The current in a given circuit is not to exceed 24 A. Which value of fuse is best? |
| A. | a fuse is not necessary |
| B. | 0.41666666666667 |
| C. | 24 A |
| D. | 20 A |
| Answer» D. 20 A | |
| 9. |
A red, red, orange, gold resistor has a nominal value of |
| A. | 22000 |
| B. | 2200 |
| C. | 22 |
| D. | 2.2 |
| Answer» B. 2200 | |
| 10. |
A wiper is the sliding contact in a |
| A. | switch |
| B. | photoconductive cell |
| C. | thermistor |
| D. | potentiometer |
| Answer» E. | |
| 11. |
If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s? |
| A. | 10.5 C |
| B. | 105 C |
| C. | 3.4 C |
| D. | 34 C |
| Answer» B. 105 C | |
| 12. |
A neutral atom with an atomic number of five has how many electrons? |
| A. | 1 |
| B. | 5 |
| C. | none |
| D. | depends on the type of atom |
| Answer» C. none | |
| 13. |
A free electron is a valence electron that has broken away from its parent atom. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» B. | |
| 14. |
The maximum resistance value for a brown, red, yellow, gold resistor is |
| A. | 126000 |
| B. | 126600 |
| C. | 114000 |
| D. | 132000 |
| Answer» B. 126600 | |
| 15. |
A two-terminal variable resistor is known as a |
| A. | potentiometer |
| B. | thermistor |
| C. | rheostat |
| D. | wiper |
| Answer» D. wiper | |
| 16. |
The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» B. | |
| 17. |
The minimum resistance value for a blue, gray, red, silver resistor is |
| A. | 612 |
| B. | 6120 |
| C. | 6800 |
| D. | 6460 |
| Answer» C. 6800 | |
| 18. |
Current flows in a circuit when |
| A. | a switch is opened |
| B. | a switch is closed |
| C. | the switch is either open or closed |
| D. | there is no voltage |
| Answer» C. the switch is either open or closed | |
| 19. |
Which of the following is not a type of energy source? |
| A. | generator |
| B. | rheostat |
| C. | solar cell |
| D. | battery |
| Answer» C. solar cell | |
| 20. |
A circuit breaker is a |
| A. | fuse |
| B. | switch |
| C. | resettable protective device |
| D. | resistor |
| Answer» D. resistor | |
| 21. |
The unit of electrical charge is the |
| A. | volt |
| B. | ampere |
| C. | joule |
| D. | coulomb |
| Answer» E. | |
| 22. |
Materials with lots of free electrons are called |
| A. | conductors |
| B. | insulators |
| C. | semiconductors |
| D. | filters |
| Answer» B. insulators | |