OPEN LEARNING LIBRARY

ASOC Question Bank

Browse MCQs, correct answers and explanations free of charge. No registration is required.

155 matching questions

Question #113Amateur Radio Regulations and Licensing

What does it mean when a CW operator sends "KN" at the end of a transmission?

  1. Listening for novice stations
  2. Operating full break-in
  3. Listening only for a specific station or stations ✓ Correct answer
  4. Closing station now
Question #114Amateur Radio Regulations and Licensing

Who is accountable if a repeater station inadvertently retransmits communications that violate WPC rules?

  1. The repeater trustee
  2. The repeater control operator
  3. The transmitting station ✓ Correct answer
  4. All of these answers are correct
Question #115Amateur Radio Regulations and Licensing

Which of the following statements is true of the single sideband (SSB) voice mode?

  1. Only one sideband and the carrier are transmitted; the other sideband is suppressed
  2. Only one sideband is transmitted; the other sideband and carrier are suppressed ✓ Correct answer
  3. SSB voice transmissions have higher average power than any other mode
  4. SSB is the only mode that is authorized on the 160, 75 and 40 meter amateur bands
Question #119Amateur Radio Regulations and Licensing

How do you indicate you are looking for any station with which to make contact?

  1. CQ followed by your call sign ✓ Correct answer
  2. RST followed by your call sign
  3. QST followed by your call sign
  4. SK followed by your call sign
Question #121Amateur Radio Regulations and Licensing

What must an amateur do when making a transmission to test equipment or antennas?

  1. Properly identify the station ✓ Correct answer
  2. Make test transmissions only after 10:00 PM local time
  3. Notify the WPC of the test transmission
  4. State the purpose of the test during the test procedure
Question #125Amateur Radio Regulations and Licensing

Who is in charge of the repeater frequency band plan in your local area?

  1. The local WPC monitoring office
  2. Only WPC HO New Delhi ✓ Correct answer
  3. The recognized frequency coordination body
  4. Amateur Radio society of India
Question #126Amateur Radio Regulations and Licensing

What is the main purpose of repeater coordination?

  1. To reduce interference and promote proper use of spectrum
  2. To coordinate as many repeaters as possible in a small area ✓ Correct answer
  3. To coordinate all possible frequencies available for repeater use
  4. To promote and encourage use of simplex frequencies
Question #127Amateur Radio Regulations and Licensing

Which of these statements is true about legal power levels on the amateur bands?

  1. Always use the maximum power allowed to ensure that you complete the contact
  2. An amateur may use no more than 200 Watts PEP to make an amateur contact
  3. An amateur may use up to 1500 Watts PEP on any amateur frequency
  4. An amateur must use the minimum transmitter power necessary to carry out the desired communication ✓ Correct answer
Question #128Amateur Radio Regulations and Licensing

What is the proper way to break into a conversation between two stations that are using the frequency?

  1. Say your call sign between their transmissions
  2. Wait for them to finish and then call CQ
  3. Say "Break-break" between their transmissions ✓ Correct answer
  4. Call one of the operators on the telephone to interrupt the conversation
Question #129Amateur Radio Regulations and Licensing

Amateurs are forbidden to transmit about

  1. Equipments
  2. weather
  3. Antennas
  4. Third party messages ✓ Correct answer
Question #130Amateur Radio Regulations and Licensing

Standard time and frequency is transmitted on

  1. 7050 KHz
  2. 14050 KHz
  3. 21050 KHz
  4. 10000 Khz ✓ Correct answer
Question #131Amateur Radio Regulations and Licensing

What is considered to be proper repeater operating practice?

  1. Monitor before transmitting and keep transmissions short ✓ Correct answer
  2. Identify legally
  3. Use the minimum amount of transmitter power necessary
  4. All of these answers are correct
Question #132Amateur Radio Regulations and Licensing

What rule applies if two amateur stations want to use the same frequency?

  1. The station operator with a Restricted Grade license must yield the frequency to an General Grade licensee
  2. The station operator with a lower power output must yield the frequency to the station with a higher power output
  3. No frequency will be assigned for the exclusive use of any station and neither has priority ✓ Correct answer
  4. Station operators in ITU Regions 1 and 3 must yield the frequency to stations in ITU Region 2
Question #133Amateur Radio Regulations and Licensing

What should you do if you hear a newly licensed operator that is having trouble with their station?

  1. Tell them to get off the air until they learn how operate properly
  2. Report them to the WPC HO.
  3. Contact them and offer to help with the problem ✓ Correct answer
  4. Move to another frequency
Question #134Amateur Radio Regulations and Licensing

A3E indicates

  1. SSB
  2. AM-DSB voice ✓ Correct answer
  3. FM Voice
  4. FSK
Question #136Amateur Radio Regulations and Licensing

The wavelength of 300 MHz is in Meters is

  1. 1 ✓ Correct answer
  2. .1
  3. 1.1
  4. 0.01
Question #137Amateur Radio Regulations and Licensing

Squelch control is used to eliminate

  1. static interference
  2. electrical disturbance
  3. receiver noise ✓ Correct answer
  4. unwanted carrier
Question #138Amateur Radio Regulations and Licensing

4th harmonic of 2.5 MHz is

  1. 10 MHz ✓ Correct answer
  2. 15 MHz
  3. 8 MHz
  4. 7.5 MHz
Question #139Amateur Radio Regulations and Licensing

Indian amateurs can communicate with other amateurs in

  1. All countries ✓ Correct answer
  2. Countries permitted by ITU
  3. Countries permitted by Indian Government
  4. Countries permitted by Indian Amateur society
Question #140Amateur Radio Regulations and Licensing

Restricted grade amateurs can communicate on 7 MHz in

  1. A1
  2. A3
  3. F3
  4. A3E ✓ Correct answer