DXRDXR ASOC EXAM PRACTICE PORTAL · VU3DXR.IN
OPEN LEARNING LIBRARY

ASOC Question Bank

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

155 matching questions

Question #595Amateur Radio Regulations and Licensing

What information is contained a station log?

  1. Date and time of contact
  2. Band and or frequency of the contact
  3. Call sign of station contacted and the signal report given
  4. all the above ✓ Correct answer

Open this question separately

Question #598Amateur Radio Regulations and Licensing

An amateur station may transmit unidentified signals

  1. when making a brief test not intended for reception by anyone else
  2. when conducted on a clear frequency when no interference will be caused
  3. when the meaning of transmitted information must be obscured to preserve secrecy
  4. never, such transmissions are not permitted. ✓ Correct answer

Open this question separately

Question #599Amateur Radio Regulations and Licensing

When conditions are good and signals are strong operators should

  1. Increase power to the maximum permissible by regulation.
  2. Increase power and use full compressor facility.
  3. Use only sufficient power to make a good contact. ✓ Correct answer
  4. Increase power to the maximum capability of the equipment.

Open this question separately

Question #602Amateur Radio Regulations and Licensing

What will be the speed in wpm. when at message being transmitted contains 60 characters in a minute

  1. 5 wpm
  2. 8 wpm
  3. 10 wpm
  4. 12 wpm ✓ Correct answer

Open this question separately

Question #603Amateur Radio Regulations and Licensing

Who can inspect and examine an Amateur Wireless station?

  1. An officer of State Government
  2. An officer of Local body
  3. A police officer
  4. An officer authorized by the Central Government in that behalf in writing by them ✓ Correct answer

Open this question separately

Question #604Amateur Radio Regulations and Licensing

When are amateur stations permitted to handle third party messages?

  1. Always
  2. Never
  3. In case of failure of normal telecommunication facilities and pertaining to natural calamities ✓ Correct answer
  4. When the band is free

Open this question separately

Question #605Amateur Radio Regulations and Licensing

Which station's call sign will have a suffix 'MS'

  1. Amateur station on board a ship ✓ Correct answer
  2. Amateur station on mobile
  3. All amateur stations have
  4. None of the above

Open this question separately

Question #606Amateur Radio Regulations and Licensing

When may you send indecent or profane words from your amateur station?

  1. Never ✓ Correct answer
  2. Only when they do not cause interference to other communications
  3. Only when they are not retransmitted through a repeater
  4. Any time, but there is an unwritten rule among amateurs that they should not be used on the air

Open this question separately

Question #607Amateur Radio Regulations and Licensing

When may an amateur station in two-way communication transmit a message in a secret code in order to obscure the meaning of the communication?

  1. During a declared communications emergency
  2. During contests
  3. Never ✓ Correct answer
  4. When transmitting above 450 MHz

Open this question separately

Question #608Amateur Radio Regulations and Licensing

Which type of station may transmit one-way communications?

  1. Beacon station ✓ Correct answer
  2. Repeater station
  3. HF station
  4. VHF station

Open this question separately

Question #609Amateur Radio Regulations and Licensing

What identification, if any, is required when two amateur stations begin communications?

  1. No identification is required
  2. Each station must transmit its own callsign
  3. Both stations must transmit both call signs ✓ Correct answer
  4. One of the stations must give both stations' call signs

Open this question separately

Question #610Amateur Radio Regulations and Licensing

Amateur third party communications is

  1. the transmission of commercial or secret messages
  2. a simultaneous communication between three operators
  3. the transmission of non- commercial or personal messages to or on behalf of a third party ✓ Correct answer
  4. none of these answers

Open this question separately

Question #611Amateur Radio Regulations and Licensing

An amateur station using radio telephony must install a device for indicating or preventing

  1. resonance
  2. antenna power
  3. plate voltage
  4. over modulation ✓ Correct answer

Open this question separately

Question #615Amateur Radio Regulations and Licensing

What is the meaning of the procedural signal "K"?

  1. End of message
  2. Any station transmit ✓ Correct answer
  3. Called station only transmit
  4. All received correctly
Explanation: In CW procedure, the prosign K means “go ahead” / any station transmit. AR means end of message.

Open this question separately

Question #616Amateur Radio Regulations and Licensing

What is meant by the term "DX"?

  1. Calling any station
  2. Distant station ✓ Correct answer
  3. Go ahead
  4. Best regards

Open this question separately

Question #619Amateur Radio Regulations and Licensing

What is a "QSL card"?

  1. A notice of violation from WPC
  2. A written proof of communication between two amateurs ✓ Correct answer
  3. A postcard reminding you when your station license will expire
  4. A letter or postcard from an amateur pen pal

Open this question separately

Question #620Amateur Radio Regulations and Licensing

What type of subjects are not prohibited communications while using amateur radio?

  1. Political jokes.
  2. Jokes and stories.
  3. Religious preferences.
  4. All of these answers are correct ✓ Correct answer

Open this question separately

Question #621Amateur Radio Regulations and Licensing

When tuning up a transmitter, and in order to prevent jamming other users on the band, you must tune, initially

  1. On a harmonic outside the band.
  2. Directly into an antenna.
  3. Into a dummy load. ✓ Correct answer
  4. Directly into a dipole.

Open this question separately

Question #623Amateur Radio Regulations and Licensing

QRP means

  1. Close down.
  2. Address is.
  3. High Power.
  4. Low Power. ✓ Correct answer

Open this question separately

Question #624Amateur Radio Regulations and Licensing

The maximum DC input to the final stage of an amateur HF transmitter, when the operator is the holder of Restricted grade license is

  1. 25 watts
  2. 30 watts
  3. 50 watts ✓ Correct answer
  4. 500 watts

Open this question separately