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 approximate range of Chayka system? |
| A. | 200mi |
| B. | 100mi |
| C. | 300mi |
| D. | 1000mi |
| Answer» E. | |
| 2. |
What type of transmitter is used in a Decca system? |
| A. | Frequency synthesizer |
| B. | Local oscillator |
| C. | Crystal controlled |
| D. | Digital |
| Answer» D. Digital | |
| 3. |
_____ acts as a coarse tuning device for the antenna? |
| A. | Loop |
| B. | Helix |
| C. | Amplifiers |
| D. | Filters |
| Answer» C. Amplifiers | |
| 4. |
Which of the following type is not used in an Omega system? |
| A. | Grounded tower |
| B. | Insulated tower |
| C. | Hanging tower |
| D. | Valley span |
| Answer» D. Valley span | |
| 5. |
What type of transmission is used in Omega system? |
| A. | Amplitude modulated wave |
| B. | Continuous wave |
| C. | Phase modulated wave |
| D. | Frequency modulated wave |
| Answer» C. Phase modulated wave | |
| 6. |
What is the use of notch filters in Loran-C receivers? |
| A. | Reduce interference from other frequencies |
| B. | Reduce interference from other stations |
| C. | Reduce interference from sky waves |
| D. | Reduce atmospheric noise |
| Answer» B. Reduce interference from other stations | |
| 7. |
HCGs are the power generators of the Loran-C transmitter stations. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
In Omega system, a given frequency is transmitted by only one station at any given time. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which of the following derives all the signals needed by the transmitter from the timer? |
| A. | PATCO |
| B. | ECD |
| C. | HCG |
| D. | TOPCO |
| Answer» B. ECD | |
| 10. |
What is the number of systems used for redundancy in a transmitting station? |
| A. | 2 |
| B. | 1 |
| C. | 5 |
| D. | 3 |
| Answer» B. 1 | |
| 11. |
Which of the following methods breaks the signal into finite segments to find the ASF? |
| A. | Millington s method |
| B. | Bill s method |
| C. | Differential method |
| D. | Table look up process |
| Answer» B. Bill s method | |
| 12. |
Which of the following advantages does the differential Loran-C provide? |
| A. | Stable user frequency |
| B. | No seasonal errors |
| C. | Cost efficient |
| D. | Very high range of 500miles |
| Answer» C. Cost efficient | |
| 13. |
Which of the following is false about Direct ranging in Loran-C? |
| A. | Uses Rho-Rho mode |
| B. | Requires minimum 2 stations |
| C. | Cost efficient |
| D. | High stable user frequency standard |
| Answer» D. High stable user frequency standard | |
| 14. |
Which mode of Loran-C requires a minimum of 3 transmitters with iterative computation to obtain a fix? |
| A. | Hyperbolic mode |
| B. | Rho-Rho-Rho |
| C. | Rho-Rho-Theta |
| D. | Rho-Theta-Zulu |
| Answer» C. Rho-Rho-Theta | |
| 15. |
What is used to indicate that a baseline is not usable? |
| A. | Blank |
| B. | Blink |
| C. | Pulse |
| D. | Continuous wave |
| Answer» C. Pulse | |