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Audio Engineering Practice Test: Audio Devices and their Applications
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Audio equipment is used in many different scenarios, such as concerts, bars, meeting rooms and the home.  Here are some examples of audio devices and their applications: Digital audio recorders: Used to record meetings, interviews, or lectures and download them into a computer Microphones: Used in many applications such as telephones, hearing aids, public address systems, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, and radio and television broadcasting Sound cards: An internal expansion card that provides input and output of... Show more
Audio Engineering Practice Test: Audio Devices and their Applications
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25 Questions

1. On which principle is the working of moving coil microphone based?
2. What is the SNR (Signal to Noise Ratio) of the horn type microphone?
3. Which gain control is used in processing circuit in PA system in audio devices?
4. What is the full form of PA system in audio devices?
5. Which of the following microphone is coated with thin layer of Teflon at the back plate?
6. Which of the following microphones is used only in telephones?
7. What is attached to the coil of moving coil loudspeaker and it causes compression and rarefaction cycles in air?
8. What is the range of a high impedance microphone?
9. Which of the following microphones is used in highly explosive areas and nuclear plants?
10. What will be the length of a track of data if it is stretched out in a CD in optical recording of disc?
11. What can be downloaded instantly from the internet with the help of Blu-ray disc?
12. Up to how many minutes a standard compact disc can hold up in optical recording of disc?
13. What is the equation for inductance in crossover network?
14. On which principle is the moving-coil loudspeaker based?
15. In horn type loudspeakers, the lowest frequency which can be reproduced depends on the diameter of mouth which can be determined by fc = 190 / d.
16. Which is the correct expression for directivity in a microphone?
17. What is the equation for the instantaneous current through load resistor in carbon microphone?
18. Which video quality is the Blu-ray disc capable of storing?
19. Which type of microphone is used for mobile communications?
20. What is related to uneven response to audio signals in microphone?
21. Which of the following microphone have the directivity pattern shaped like a heart?
22. What is the equation for capacitance in crossover network?
23. The efficiency of cone speaker is very low about 5 to 10 percent only.
24. With which material is a photographic film strip coated on one side of photographic film in optical recording of sound?
25. What is the percent of lobe present in rear of supercardioid microphone?