About Radio Receivers

Following are some of the multiple choice questions on the Radio Receivers with answers that will help the students in developing their knowledge.

Radio Receivers MCQ

1. What is P25?

  • PSAP Project 25
  • Association of Public Safety Communication Officials International Project 25
  • Inter Radio Frequency
  • Public Safety 25

2. This voice is from one of the most iconic and well-known American DJ's in history. Who is he?https://www.youtube.com/watch?v=wLL30r3x7eY&ab_channel=indychauffuer

  • Johnny Cash
  • Wolfman Jack
  • Crazy Ivan Joe
  • Alan Freed

3. What is the median, 2019 annual salary of a disc jockey on the radio?

  • $38,733
  • $47,291
  • $55,083
  • $75,652

4. When is World Radio Day?

  • 13 February
  • 18 January
  • 14 June
  • 15 December

5. Who proposed the idea of celebrating World Radio Day

  • China's Radio Academy
  • Spain’s Radio Academy
  • India’s Radio Academy
  • Malaysia’s Radio Academy

6. Why UNESCO choose 13 February as World Radio Day?

  • Because they love February 13
  • Because it is the birthday of UNESCO general
  • Because it is the day of the establishment of the United Nations Radio
  • Because it is the day they found radio

7. What are the letters "WEEI" in this image?

  • Owner's initials
  • Radio shorthand
  • Radio station's frequency
  • Radio station's identification code

8. Below is the sub-theme for World Radio Day celebration 2021, except

  • Evolution
  • Connection
  • Innovation
  • Motivation

9. What is this? "A digital audio file made available on the Internet for downloading to a computer or mobile device, typically available as a series, new installments of which can be received by subscribers automatically."

  • MP3
  • Podcast
  • WAV. file
  • Spotify

10. What is World Radio Day theme for 2021

  • Radio and Diversity
  • New World, New Radio
  • Radio is You
  • Covid-19 and Radio

11. Today there are currently over ___________ commercial radio stations broadcasting in the United States.

  • 5,000
  • 10,000
  • 15,000
  • 20,000

12. When is the first World Radio Day celebration?

  • 13 February 2010
  • 13 February 2011
  • 13 February 2012
  • 13 February 2013

13. How does satellite radio work different than FM/AM radio?

  • Satelitte radio uses satellites to deliver signal to it's receivers.
  • AM\FM broadcasts from a transmitter on the ground and covers typically a relatively small geographic area

14. When is the United Nations Radio was created?

  • 13 February 1946
  • 13 April 1947
  • 13 March 1948
  • 13 May 1950

15. In 2019 what percentage of American youth ages 12-17 listened to the radio?

  • 55.6%
  • 85.6%
  • 72.3%
  • 95%

16. Who is the first person to prove that radio waves exist?

  • Heinrich Jazz
  • Henry Hertz
  • Albert Einstein
  • Heinrich Hertz

17. In the first quarter of 2020, Sirius XM (satellite radio) had approximately ________________ subscribers.

  • 25 million
  • 34.77 million
  • 40.6 million
  • 95 million

18. A ‘broadcast’ only occurs when a radio signal is sent to many receivers at once.

  • True
  • False

19. Fred Caruso (WRHS Baseball coach and local radio personality) holds what job at Mix 94.1?

  • Program Director
  • Director of Sales
  • Owner
  • President

20. The first radio messages were two-way and were an attempt to replace telegraph messages.

  • True
  • False

21. FM radio began in

  • 1939
  • 1940
  • 1942
  • 1943

22. How do you think COVID-19 will affect how people listen to the radio?

23. What is a Radio?

  • Transmitting information without physical contact between the sender and the receiver
  • Designed for 1 person to talk at a time
  • Frequency energy can be transmitted without wires
  • All of the above

24. History - True or False: The first radio used dots and dashes in certain sequences to send messages

  • True
  • False

25. True or False: Repeaters are used to extend the effective range on communication

  • True
  • False

26. Which of the following is Mobile Radio

  • Have better transmitting and receiving capabilities than portable radio
  • Radios that are permanently installed in response units vehicles
  • Is less powerful than a portable radio
  • Both A & B

27. True and False: Portable Radios are used by response units while away from a vehicle

  • True
  • False

28. True or False: Console equipment ranges from simple desktop units capable of limited system control to complex, freestanding consoles capable of controlling multiple repeaters

  • True
  • False

29. The False information about Conventional Radio System is...

  • Not enough radio spectrum available for agencies
  • There are different frequencies for Law Enforcement dispatch, EMS dispatch and Fire Service dispatchers
  • Convention of radios

30. Which is False information about a Trunked Radio System

  • Allows for shared dynamic allocation of available communications resources
  • No dedicated lines
  • Talk groups are able to share frequencies with the central controller sorting out the transmission instantaneously
  • When user stop transmitting, the channel is not available again

31. What is Radio Frequency?

  • Radio frequencies radiate from n antenna into space as "waves"
  • Individual frequencies are assigned to radio stations
  • Radio signals are transmitted on specific frequencies
  • All of the Above

32. What is Radio Interoperability

  • The ability for multiple agencies to converse with one another using common radio frequencies
  • Radio that communicates with the closest radio tower
  • Transmitters and receivers capable of completely independent operation using internal batteries
  • Contains a one-way receiver and decoder that may be individually activated

33. Which of the following sparks can produce radio waves?

  • High voltage sparks
  • Low voltage sparks
  • Medium voltage sparks
  • Nominal voltage sparks

34. What is faster the speed of light or the speed of sound?

  • The speed of light
  • The speed of sound

35. What are points on a standing wave where the amplitude of the wave is zero?

  • Antinodes
  • Nodes
  • Refraction 
  • Reflection

36. What are crests and troughs of a standing wave?

  • Antinodes
  • Nodes
  • Wavelength
  • Resonance 

37. What does GPS tell you? 

  • The time
  • Your exact location
  • How much money you have
  • What the weather is like

38. What is the correct way a cell phone call goes out? 

  • The phone call goes out, transmits through microwaves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call
  • The phone call goes out, transmits through  radio waves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call
  • The phone call goes out, transmits through microwaves, then moves to the tower. Then the signals go to the nearest hub to the receiver of the call
  • The phone call just magically gets to the other phone

39. How can cell phones make long distance calls?

  • Strong Wifi signal
  • Good reception 
  • Satellite telephone systems
  • The government

40. What types of waves do cell phones use?

  • Radio waves
  • Gamma Rays
  • Microwaves 
  • Ultraviolet Rays

41. What must radio waves move around? Select the best answer

  • The curvature of Earth
  • The population of people
  • The population of animals
  • Trees and other plants

42. What relays signals it receives from Earth back to other receivers?

  • Tower
  • Cell Phone
  • Transmitter
  • Power Station

43. What waves carry information to your TV and radio ?

  • Radio
  • Microwaves
  • Gamma
  • AM

44. Which waves can reach great distances (Waves go into atmosphere and reflect back to Earth so that can move around the curvature of Earth)? 

  • FM
  • AM
  • Radio 
  • Microwaves 

45. In AM waves what remains constant? 

  • Frequency 
  • Amplitude 
  • Wavelength 
  • Crests

46. Which waves pass through the atmosphere and they are not reflected back toward Earth?

  • FM
  • AM
  • Radio 
  • Microwa

47. How do FM waves travel?

  • As changes in the frequency of the wave
  • As changes in the amplitude of the wave
  • As changes in the wavelength of the wave
  • As changes in the resonance of the wave

48. What is orbiting Earth that receive radio, television, and telephone signals and then transmit them around the world?

  • GPS
  • Communication Satellite 
  • Transmitter
  • Cell Phone Tower

49. It is an intense burst of radio-frequency energy lasting for a fraction of a second.

  • Microwave
  • Radio pulse
  • Sound
  • Ultrasound

50. Which of the following uses radio waves?

  • Mobile phones
  • Satellites
  • Televisions
  • All of the these

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