MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For a sharp resonance, bandwidth is ______________ |
| A. | low |
| B. | high |
| C. | zero |
| D. | infinity |
| Answer» B. high | |
| 2. |
Find the value of voltage in the bandwidth range when the maximum value of voltage is 100 V. |
| A. | 56.65 V |
| B. | 35.36 V |
| C. | 45.34 V |
| D. | 70.72 V |
| Answer» E. | |
| 3. |
At resonance, bandwidth includes the frequency range that allows _____ percent of the maximum voltage to flow. |
| A. | 33.33 |
| B. | 66.67 |
| C. | 50 |
| D. | 70.7 |
| Answer» E. | |
| 4. |
Bandwidth is the difference of_____________________ frequencies. |
| A. | half power |
| B. | full power |
| C. | double power |
| D. | wattless |
| Answer» B. full power | |
| 5. |
Current is maximum at __________ frequency of bandwidth. |
| A. | left end |
| B. | middle |
| C. | right end |
| D. | all end |
| Answer» C. right end | |
| 6. |
Find the value of current in the bandwidth range when the maximum value of current is 50A. |
| A. | 56.65A |
| B. | 35.36A |
| C. | 45.34A |
| D. | 78.76A |
| Answer» C. 45.34A | |
| 7. |
What is the correct formula for quality factor? |
| A. | Q=BW*fr |
| B. | Q=BW/fr |
| C. | Q=fr/BW |
| D. | Q=fr2 |
| Answer» D. Q=fr2 | |
| 8. |
The current lags the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency. |
| A. | Above |
| B. | Below |
| C. | Equal to |
| D. | Cannot be determined |
| Answer» B. Below | |
| 9. |
Resonance frequency occurs when __________________ |
| A. | XL=XC |
| B. | XL>XC |
| C. | XL<XC |
| D. | Cannot be determined |
| Answer» B. XL>XC | |
| 10. |
In a series RLC circuit, the phase difference between the current in the circuit and the voltage across the capacitor is? |
| A. | 0 |
| B. | 900 |
| C. | 1800 |
| D. | 3600 |
| Answer» C. 1800 | |
| 11. |
In a series RLC circuit, the phase difference between the current in the capacitor and the current in the inductor is? |
| A. | 0 |
| B. | 900 |
| C. | 1800 |
| D. | 3600 |
| Answer» B. 900 | |
| 12. |
The current in the inductor ___________ the voltage in a series RLC circuit above the resonant frequency. |
| A. | Leads |
| B. | Lags |
| C. | Equal to |
| D. | Depends on the circuit |
| Answer» C. Equal to | |
| 13. |
The current in the capacitor ___________ the voltage in a series RLC circuit below the resonant frequency. |
| A. | Leads |
| B. | Lags |
| C. | Equal to |
| D. | Depends on the circuit |
| Answer» B. Lags | |
| 14. |
The current in the capacitor leads the voltage in a series RLC circuit ___________ resonant frequency. |
| A. | Above |
| B. | Below |
| C. | Equal to |
| D. | Depends on the circuit |
| Answer» C. Equal to | |