MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is__________? |
| A. | 0 dB |
| B. | 8.30 dB |
| C. | -8.30 dB |
| D. | 0.8 dB |
| Answer» D. 0.8 dB | |
| 2. |
The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the input frequency, the output voltage is____________? |
| A. | 12.73 V peak-to-peak |
| B. | 18 V peak-to-peak |
| C. | 9 V peak-to-peak |
| D. | zero |
| Answer» C. 9 V peak-to-peak | |
| 3. |
The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is_____________? |
| A. | 10.60 V |
| B. | 0 V |
| C. | 21.21 V |
| D. | 15 V |
| Answer» B. 0 V | |
| 4. |
In a series resonant band-pass filter, a lower value of Q results in______________? |
| A. | a higher impedance |
| B. | a smaller bandwidth |
| C. | a higher resonant frequency |
| D. | a larger bandwidth |
| Answer» E. | |
| 5. |
In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency_____________? |
| A. | is 7 kHz |
| B. | is 10 kHz |
| C. | is 12 kHz |
| D. | cannot be determined |
| Answer» D. cannot be determined | |
| 6. |
In a certain low-pass filter, fc = 3.5 kHz.if the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude? |
| A. | 0 V |
| B. | 5.97 V |
| C. | 6 V |
| D. | 597 mV |
| Answer» C. 6 V | |
| 7. |
In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________? |
| A. | 3.5 kHz |
| B. | 0 Hz |
| C. | 0 Hz to 3.5 kHz |
| D. | 7 kHz |
| Answer» D. 7 kHz | |
| 8. |
In a certain low-pass filter, fc = 3.5 kHz. Its pass-band is_______________? |
| A. | 0 Hz to 3.5 kHz |
| B. | 0 Hz |
| C. | 3.5 kHz |
| D. | 7 kHz |
| Answer» B. 0 Hz | |
| 9. |
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V.the filter’s bandwidth is____________? |
| A. | 530 Hz |
| B. | 106 Hz |
| C. | 11.5 Hz |
| D. | 53 Hz |
| Answer» E. | |
| 10. |
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is_____________? |
| A. | 6.02 dB |
| B. | -6.02 dB |
| C. | 12.04 dB |
| D. | -12.04 dB |
| Answer» C. 12.04 dB | |
| 11. |
An RL low-pass filter consists of a 5.6 mH coil and a 3.3 kΩ resistor. The output voltage is taken across the resistor. The circuit’s critical frequency is______________? |
| A. | 93.8 kHz |
| B. | 93.8 Hz |
| C. | 861 Hz |
| D. | 86.12 kHz |
| Answer» B. 93.8 Hz | |
| 12. |
An RL high-pass filter consists of a 470 Ω resistor and a 600 mH coil. The output is taken across the coil. The circuit’s critical frequency is___________? |
| A. | 125 Hz |
| B. | 1,250 Hz |
| C. | 564 Hz |
| D. | 5,644 Hz |
| Answer» B. 1,250 Hz | |
| 13. |
An RC low-pass filter consists of a 120 Ω resistor and a 0.002 µF capacitor. The output is taken across the capacitor. The circuit’s critical frequency is___________? |
| A. | 333 kHz |
| B. | 633 kHz |
| C. | 331 kHz |
| D. | 60 kHz |
| Answer» C. 331 kHz | |
| 14. |
An RC high-pass filter consists of a 0.2 µF capacitor and a 220 Ω resistor. The output is taken across the resistor. The circuit’s critical frequency is_____________? |
| A. | 723 Hz |
| B. | 7,234 Hz |
| C. | 362 Hz |
| D. | 3,617 Hz |
| Answer» E. | |
| 15. |
A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the reactance at the input frequency is zero, the output voltage is____________? |
| A. | 18 V peak-to-peak |
| B. | zero |
| C. | 9 V peak-to-peak |
| D. | 12.74 V peak-to-peak |
| Answer» C. 9 V peak-to-peak | |