MCQOPTIONS
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MCQOPTIONS
This section includes 26 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Luminance refers to ________ |
| A. | contrast |
| B. | diffusion |
| C. | brightness |
| D. | aperture |
| Answer» D. aperture | |
| 2. |
RGB stands for ________ |
| A. | Red Green Brown |
| B. | Red Green Black |
| C. | Red Gold Blue |
| D. | Red Green Blue |
| Answer» E. | |
| 3. |
TDMA stands for ________ |
| A. | Time Division Multiple Access |
| B. | Time Domain Multiple Access |
| C. | Time Division Mutual Access |
| D. | Time Domain Mutual Access |
| Answer» B. Time Domain Multiple Access | |
| 4. |
A cable TV service uses a single coaxial cable with a bandwidth of 860 MHz to transmit multiple TV signals to subscribers. Each TV signal is 6 MHz wide. How many channels can be carried? |
| A. | 143 |
| B. | 123 |
| C. | 100 |
| D. | 150 |
| Answer» B. 123 | |
| 5. |
The system which uses FM for the subcarriers is called _____ |
| A. | FM II system |
| B. | FM/FM system |
| C. | FM/AM system |
| D. | 2 stage FM system |
| Answer» C. FM/AM system | |
| 6. |
Which of the following device is used to demultiplex the received signal? |
| A. | Allpass filters |
| B. | Bandpass filters |
| C. | Bandstop filters |
| D. | Differential filters |
| Answer» C. Bandstop filters | |
| 7. |
HOW_MANY_LINES_ARE_THERE_IN_AN_NTSC_SIGNAL??$ |
| A. | 1024 |
| B. | 1856 |
| C. | 625 |
| D. | 525 |
| Answer» E. | |
| 8. |
WHICH_OF_THE_FOLLOWING_DEVICE_IS_USED_TO_DEMULTIPLEX_THE_RECEIVED_SIGNAL??$ |
| A. | Allpass filters |
| B. | Bandpass filters |
| C. | Bandstop filters |
| D. | Differential filters |
| Answer» C. Bandstop filters | |
| 9. |
A cable TV service uses a single coaxial cable with a bandwidth of 860 MHz to transmit multiple TV signals to subscribers. Each TV signal is 6 MHz wide. How many channels can be carried?$ |
| A. | 143 |
| B. | 123 |
| C. | 100 |
| D. | 150 |
| Answer» B. 123 | |
| 10. |
Luminance_refers_to_________$ |
| A. | contrast |
| B. | diffusion |
| C. | brightness |
| D. | aperture |
| Answer» D. aperture | |
| 11. |
The_system_which_uses_FM_for_the_subcarriers_is_called______$ |
| A. | FM II system |
| B. | FM/FM system |
| C. | FM/AM system |
| D. | 2 stage FM system |
| Answer» C. FM/AM system | |
| 12. |
RGB stands for _______? |
| A. | Red Green Brown |
| B. | Red Green Black |
| C. | Red Gold Blue |
| D. | Red Green Blue |
| Answer» E. | |
| 13. |
Which circuit does the actual multiplexing process in frequency division multiplexing? |
| A. | Linear mixer |
| B. | Oscillator |
| C. | RF amplifier |
| D. | Duplexer |
| Answer» B. Oscillator | |
| 14. |
How we can define satisfactory performance of an analog microwave system? |
| A. | carrier to noise ratio that exceeds a given value |
| B. | carrier to noise ratio that is below a given value |
| C. | an ERP value that exceeds a given value |
| D. | an ERP value that is below a given value |
| Answer» B. carrier to noise ratio that is below a given value | |
| 15. |
What is the individual carrier frequency of each signal called? |
| A. | Subcarrier |
| B. | Frequency carrier |
| C. | Modulated carrier |
| D. | Coded carrier |
| Answer» B. Frequency carrier | |
| 16. |
What is the full form of LOS? |
| A. | Level Of Signal |
| B. | Line Of Sight |
| C. | Loss Of Signal |
| D. | Level Of Sight |
| Answer» C. Loss Of Signal | |
| 17. |
For frequency division multiplexing who defines the channel bandwidth? |
| A. | FCC |
| B. | ARNIC |
| C. | FAA |
| D. | CCA |
| Answer» B. ARNIC | |
| 18. |
Power can be coupled into or out of a waveguide with a magnetic field probe. |
| A. | True |
| B. | False |
| Answer» C. | |
| 19. |
The transmission of multiple signals in a common frequency without interference is called _______ |
| A. | Time division multiplexing |
| B. | Frequency division multiplexing |
| C. | Code division multiplexing |
| D. | Spatial multiplexing |
| Answer» E. | |
| 20. |
Which term is used for moving PCM samples from one time slot to another? |
| A. | time switching |
| B. | space switching |
| C. | phase switching |
| D. | frequency switching |
| Answer» B. space switching | |
| 21. |
What type of multiplexing is widely used in cellphones? |
| A. | Time division multiplexing |
| B. | Frequency division multiplexing |
| C. | Code division multiplexing |
| D. | Spatial multiplexing |
| Answer» D. Spatial multiplexing | |
| 22. |
PSK stands for Pulse Shift Keying. |
| A. | True |
| B. | False |
| Answer» C. | |
| 23. |
Time division multiplexing: Digital signal:: Frequency division multiplexing:? |
| A. | Pulse code modulated signal |
| B. | Continuous wave signals |
| C. | Analog signal |
| D. | Pulse position modulated signal |
| Answer» D. Pulse position modulated signal | |
| 24. |
Which term is used when signals move from one line to another? |
| A. | path switching |
| B. | space switching |
| C. | line switching |
| D. | cross-point switching |
| Answer» C. line switching | |
| 25. |
In which of the following systems multiplexing is not necessary? |
| A. | Telemetry |
| B. | TV broadcasting |
| C. | Satellites |
| D. | Continuous wave transmission |
| Answer» E. | |
| 26. |
Multiplexing increases the number of communication channels for transmission. |
| A. | True |
| B. | False |
| Answer» B. False | |