MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the resonant frequency of a 2.7-pF capacitor and a 33-nH inductor? |
| A. | 512MHz |
| B. | 720GHz |
| C. | 250MHz |
| D. | 533MHz |
| Answer» E. | |
| 2. |
What is the Q factor for a 3-μH inductor with a total resistance of 45Ω at 90 MHz? |
| A. | 37.68 |
| B. | 37.68Ω |
| C. | 29.22Ω |
| D. | 32.75Ω |
| Answer» B. 37.68Ω | |
| 3. |
What is the inductive reactance of a 40-μH coil at 18 MHz? |
| A. | 4000Ω |
| B. | 4522Ω |
| C. | 4522H |
| D. | 0 |
| Answer» C. 4522H | |
| 4. |
WHAT_IS_THE_INDUCTIVE_REACTANCE_OF_A_40-‚ÂÀ√≠¬¨‚À´H_COIL_AT_18_MHZ??$# |
| A. | 4000Ω |
| B. | 4522Ω |
| C. | 4522H |
| D. | 0 |
| Answer» C. 4522H | |
| 5. |
What is the resonant frequency of a 2.7-pF capacitor and a 33-nH inductor?$ |
| A. | 512MHz |
| B. | 720GHz |
| C. | 250MHz |
| D. | 533MHz |
| Answer» E. | |
| 6. |
What_is_the_Q_factor_for_a_3-μH_inductor_with_a_total_resistance_of_45Ω_at_90_MHz?$# |
| A. | 37.68 |
| B. | 37.68Ω |
| C. | 29.22Ω |
| D. | 32.75Ω |
| Answer» B. 37.68‚âà√≠¬¨¬© | |
| 7. |
What is the bandwidth of a resonant circuit with a frequency of 28 MHz and a Q of 80? |
| A. | 350KHz |
| B. | 30KHz |
| C. | 42.7KHz |
| D. | 57.05MHz |
| Answer» B. 30KHz | |
| 8. |
What happens to inductive resistance when operating frequency is increased? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Goes to infinite |
| Answer» B. Decreases | |
| 9. |
Which one of the following is false with respect to stray capacitance? |
| A. | Reduces with decrease in size of lead wires |
| B. | Reduces when chip capacitors are used |
| C. | Increases when lead wires a are lengthy |
| D. | Increases with less capacitance value |
| Answer» E. | |
| 10. |
Calculate the reactance of a 100-pF capacitor at an operating frequency of 2 MHz? |
| A. | 200Ω |
| B. | 700.16Ω |
| C. | 796.2Ω |
| D. | 2Ω |
| Answer» C. 796.2‚âà√≠¬¨¬© | |
| 11. |
What happens to capacitative reactance when operating frequency is increased? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | goes to infinite |
| Answer» C. Remains constant | |
| 12. |
A capacitor used in an ac circuit continually charges and discharges. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
What happens to the voltage when it passes through an inductor/coil? |
| A. | Phase of voltage leads the current |
| B. | Phase of current leads the voltage |
| C. | Phase of current and voltage cancel out each other |
| D. | Phase of current and voltage gets added |
| Answer» B. Phase of current leads the voltage | |
| 14. |
What happens to the current when it passes through a capacitor? |
| A. | Phase of voltage leads the current |
| B. | Phase of current leads the voltage |
| C. | Phase of current and voltage cancel out each other |
| D. | Phase of current and voltage gets added |
| Answer» C. Phase of current and voltage cancel out each other | |
| 15. |
What is reactance? |
| A. | Resistance offered to ac current by resistor only |
| B. | Resistance offered to dc current by resistor |
| C. | Resistance offered to ac current by coil and capacitance |
| D. | Resistance offered to dc current by coil and capacitance |
| Answer» D. Resistance offered to dc current by coil and capacitance | |