Results
Q1. The device used by a pilot to hear ATC instructions is called:
Correct answer is – Headphones
Q2. A microphone works on the principle of converting:
Correct answer is – Sound to electrical signals
Q3. Which knob adjusts loudness in a radio set?
Correct answer is – Volume control
Q4. Squelch control is used to:
Correct answer is – Reduce unwanted noise
Q5. AVC stands for:
Correct answer is – Automatic Volume Control
Q6. In simplex communication:
Correct answer is – Only one party can talk at a time
Q7. 121.5 MHz is known as:
Correct answer is – Emergency frequency
Q8. In half-duplex communication:
Correct answer is – Transmission happens both ways but one at a time
Q9. A pilot changes frequency using:
Correct answer is – Radio tuning panel
Q10. Headphones in an aircraft help to:
Correct answer is – Remove wind and engine noise
Q11. The main purpose of radio transmission in aviation is to:
Correct answer is – Communicate between pilots, ATC, and other aircraft
Q12. Which frequency band is most commonly used for air-to-ground communication?
Correct answer is – VHF
Q13. Which frequency band is preferred for long-distance oceanic flights?
Correct answer is – HF
Q14. Radio communication range on VHF mainly depends on:
Correct answer is – Line-of-sight distance
Q15. 121.5 MHz is mainly used for:
Correct answer is – Emergency communication
Q16. Which navigation aid uses radio signals for precision landing?
Correct answer is – ILS
Q17. One major disadvantage of radio communication is:
Correct answer is – Interference from other signals
Q18. What is a benefit of radio over mobile phone communication in aviation?
Correct answer is – Instant group communication
Q19. Which of the following can block or weaken VHF signals?
Correct answer is – Mountains
Q20. What can cause adjacent band interference to aviation VHF?
Correct answer is – FM radio transmitters
