MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An antenna is adjusted by adjusting the two 'look angles' called _________ |
| A. | coverage and elevation |
| B. | declination and elevation |
| C. | azimuth and declination |
| D. | azimuth and elevation |
| Answer» E. | |
| 2. |
In a balanced mixer, the output _________ |
| A. | contains equal amount of all input frequencies |
| B. | does not contain the input frequencies |
| C. | contains the input frequencies |
| D. | is a non-linear mixture of input signals |
| Answer» C. contains the input frequencies | |
| 3. |
The loss in single-mode fiber optic cable due to the glass is about ________ |
| A. | 40 dB per km |
| B. | 0.4 dB per km |
| C. | zero |
| D. | 100 dB per km |
| Answer» C. zero | |
| 4. |
What is represented by 'Figure Of Merit'? |
| A. | how much noise is in the channel |
| B. | how much noise is in the communication system |
| C. | how much noise an amplifier adds to the signal |
| D. | signal to noise ratio in dB |
| Answer» D. signal to noise ratio in dB | |
| 5. |
Adding bits to synchronize one digital signal to another is called _________ |
| A. | WDM |
| B. | TDM |
| C. | Bit stuffing |
| D. | Bit synchronization |
| Answer» D. Bit synchronization | |
| 6. |
What is the full form of FITL ________ |
| A. | Fiber Input Timing Loss |
| B. | Fibre Impedance To The Loop |
| C. | Fiber Input Timing Loop |
| D. | Fiber In The Loop |
| Answer» E. | |
| 7. |
Fiber-optic cable can be used to connect a transmitter to an antenna. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Scattering causes _________ |
| A. | refraction |
| B. | loss |
| C. | dispersion |
| D. | reflection |
| Answer» C. dispersion | |
| 9. |
The loss in single-mode fiber optic cable due to the connector is about ________ |
| A. | 0.2 dB per km |
| B. | 0.02 dB per km |
| C. | 0.0002 dB per km |
| D. | 2 dB per km |
| Answer» B. 0.02 dB per km | |
| 10. |
A cordless telephone that uses separate frequencies for transmission in a base and portable units is called _________ |
| A. | half duplex |
| B. | duplex |
| C. | simplex |
| D. | neither duplex nor simplex |
| Answer» C. simplex | |
| 11. |
The loss in single-mode fiber optic cable due to the splice is about ________ |
| A. | 0.2 dB per km |
| B. | 0.02 dB per km |
| C. | 0.0002 dB per km |
| D. | 2 dB per km |
| Answer» C. 0.0002 dB per km | |
| 12. |
The area on the earth that is covered by a satellite is called __________ |
| A. | plate |
| B. | footprint |
| C. | downlink |
| D. | earth station |
| Answer» C. downlink | |
| 13. |
A Bluetooth 'piconet' has ________ |
| A. | 1 node |
| B. | 2 nodes |
| C. | 2 to 8 nodes |
| D. | 2 to 16 nodes |
| Answer» D. 2 to 16 nodes | |
| 14. |
What is the full form of MTSO? |
| A. | Minimum Transmitted Signal Output |
| B. | Maximum Transmitted Signal Output |
| C. | Mobile Telephone Switching Office |
| D. | Mobile Telephone Signal Office |
| Answer» D. Mobile Telephone Signal Office | |
| 15. |
'Station-keeping' refers to ___________ |
| A. | antenna maintenance |
| B. | power level adjustments |
| C. | orbital adjustments |
| D. | range of frequencies |
| Answer» D. range of frequencies | |
| 16. |
For signal, m(t) = 50cos(10 × 90t + 30 sin100t), the power dissipated by the 20O resistor is ________ |
| A. | 100W |
| B. | 65W |
| C. | 74.7W |
| D. | 62.5W |
| Answer» E. | |
| 17. |
FTTC stands for ________ |
| A. | Fiber To The Curb |
| B. | Fiber Telephone Transmission Cable |
| C. | Fiber Transmission Timing Cable |
| D. | Fiber Telephone Timing Cable |
| Answer» B. Fiber Telephone Transmission Cable | |