MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________? |
| A. | twice the source voltage |
| B. | half the source voltage |
| C. | zero volts |
| D. | the same as the source voltage |
| Answer» D. the same as the source voltage | |
| 2. |
Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is_________? |
| A. | 24 V |
| B. | 12 V |
| C. | 0 V |
| D. | 6 V |
| Answer» B. 12 V | |
| 3. |
Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is____________? |
| A. | 138 Ω |
| B. | 1,389 Ω |
| C. | 5,700 Ω |
| D. | 880 Ω |
| Answer» C. 5,700 Ω | |
| 4. |
Three 10 kΩ resistors are connected in series. A 20 kΩ resistor is connected in parallel across one of the 10 kΩ resistors. The voltage source is 24 V. The total current in the circuit is___________? |
| A. | 900 μA |
| B. | 9 mA |
| C. | 90 mA |
| D. | 800 μA |
| Answer» B. 9 mA | |
| 5. |
The positive (+) and negative (-) ends of the battery are called ___________? |
| A. | circuit diagram |
| B. | battery knobs |
| C. | battery terminals |
| D. | battery sides |
| Answer» D. battery sides | |
| 6. |
The parallel combination of a 470 Ω resistor and a 680 Ω resistor is in series with the parallel combination of four 2 kΩ resistors. The total resistance is___________? |
| A. | 1,650 Ω |
| B. | 1,078 Ω |
| C. | 77.8 Ω |
| D. | 778 Ω |
| Answer» E. | |
| 7. |
The parallel combination of a 470 Ω resistor and a 1.2 kΩ resistor is in series with the parallel combination of three 3 kΩ resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of____________? |
| A. | 470 Ω or 1.2 kΩ |
| B. | 3 kΩ |
| C. | 470 Ω |
| D. | 1.2 kΩ |
| Answer» D. 1.2 kΩ | |
| 8. |
The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)___________? |
| A. | 6.8 kΩ |
| B. | 2.2 kΩ |
| C. | 6.8 kΩ and 10 kΩ |
| D. | 2.2 kΩ and 1 kΩ |
| Answer» D. 2.2 kΩ and 1 kΩ | |
| 9. |
The parallel combination of a 470 Ω resistor and a 1.5 kΩ resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 KΩ resistor is__________? |
| A. | 25 % |
| B. | 20 % |
| C. | 100 % |
| D. | 50 % |
| Answer» C. 100 % | |
| 10. |
The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________? |
| A. | 20,000 Ω |
| B. | 100,000 Ω |
| C. | 200,000 Ω |
| D. | 1,000,000 Ω |
| Answer» C. 200,000 Ω | |
| 11. |
The first goal to accomplish in analyzing a complex series-parallel circuit is to____________? |
| A. | solve for all the voltage drops |
| B. | solve for the total current and resistance |
| C. | equate all series components |
| D. | equate all parallel components |
| Answer» C. equate all series components | |
| 12. |
The current flowing through an unloaded voltage divider is called the____________? |
| A. | bleeder current |
| B. | load current |
| C. | resistor current |
| D. | voltage current |
| Answer» B. load current | |
| 13. |
In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with R3, if R1 opens, then R2‘s voltage will:___________? |
| A. | increase |
| B. | remain the same |
| C. | decrease |
| D. | cannot tell |
| Answer» D. cannot tell | |
| 14. |
In a series–parallel circuit, individual component power dissipation are calculated using_____________? |
| A. | individual component parameters |
| B. | a percent of the total power depending on resistor ratios |
| C. | total current squared multiplied by the resistor values |
| D. | a percent of the voltage division ratio squared |
| Answer» B. a percent of the total power depending on resistor ratios | |
| 15. |
In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is___________? |
| A. | Indeterminable |
| B. | 2 kΩ |
| C. | 10 kΩ |
| D. | 20 kΩ |
| Answer» C. 10 kΩ | |
| 16. |
A Wheatstone bridge can be used to determine an unknown_____________? |
| A. | current |
| B. | voltage |
| C. | resistance |
| D. | power |
| Answer» D. power | |
| 17. |
A voltage divider consists of two 68 kΩ resistors and a 24 V source. The unknown output voltage is______________? |
| A. | 12 V |
| B. | 24 V |
| C. | 0 V |
| D. | 6 V |
| Answer» B. 24 V | |
| 18. |
A device able to supply electrical energy is a __________? |
| A. | nonconductor |
| B. | battery |
| C. | conductor |
| D. | microwave |
| Answer» C. conductor | |