Practice Exam

T3A11

1. Which region of the atmosphere can reflect HF radio waves?

• A. The stratosphere
• B. The ionosphere
• C. The electrosphere
• D. The troposphere

T2B11

2. Which Q signal indicates that you are changing frequency?

• A. QSL
• B. QRZ
• C. QSY
• D. QRU

T3B02

3. What property of a radio wave defines its polarization?

• A. The orientation of the electric field
• B. The orientation of the magnetic field
• C. The ratio of the velocity to the wavelength
• D. The ratio of the energy in the magnetic field to the energy in the electric field

T6A01

4. What electrical component opposes the flow of current in a DC circuit?

• A. Inverter
• B. Inductor
• C. Transformer
• D. Resistor

T7B05

5. Which of the following might reduce interference by an amateur station to a non-amateur over-the-air radio receiver?

• A. Switch the transmitter to a narrow-band mode
• B. Switch the transmitter from FM to SSB
• C. Block the amateur signal with a filter at the antenna input of the affected receiver
• D. Block the interfering signal with a filter on the amateur transmitter

T7C03

6. What does a typical RF dummy load consist of?

• A. A low-voltage power supply and an AC relay
• B. A low-voltage power supply and a DC relay
• C. A 50-ohm non-inductive resistor mounted on a heat sink
• D. A 50-ohm inductive reactance mounted in a shielded enclosure

T2A07

7. What does the term "repeater offset" mean?

• A. The fee charged by the repeater owner or club to provide for maintenance
• B. The approximately half-second delay to allow for the "squelch tail" to be removed
• C. The repeater has a time delay to prevent interference
• D. The difference between a repeater's transmit and receive frequencies

T5C11

8. How much current is required to deliver 120 watts at a voltage of 12 volts DC?

• A. 12 amperes
• B. 132 amperes
• C. 10 amperes
• D. 0.1 amperes

T8D02

9. What is FT8?

• A. A digital mode capable of low signal-to-noise operation
• B. A digital slow-scan TV mode with forward error correction and automatic color compensation
• C. A wideband FM voice mode
• D. An eight-channel multiplex mode for FM repeaters

T0C01

10. What type of radiation are radio signals?

• A. Ionizing radiation
• B. Non-ionizing radiation
• C. Gamma radiation
• D. Alpha radiation

T7A11

11. What is the function of the Variable Frequency Oscillator (VFO) circuit in a transceiver?

• A. Inject a variable frequency to allow CW reception
• B. Set the receive and transmit frequency
• C. Provide automatic frequency control
• D. Generate and demodulate single sideband signals

T5A08

12. Which of the following is a good electrical insulator?

• A. Stainless steel
• B. Sea water
• C. Glass
• D. Graphite

T6B11

13. What does the term gain mean in amplifiers?

• A. The output signal voltage relative to the input signal voltage
• B. The output signal power relative to the input signal power
• C. The output signal current relative to the input signal current
• D. All these choices are correct

T8C08

14. What is the Internet Radio Linking Project (IRLP)?

• A. A technique to connect amateur radio systems, such as repeaters, via the internet
• B. A system for informing amateurs in real time of the frequency of active DX stations
• C. A technique for measuring signal strength of an amateur transmitter via the internet
• D. A system for providing access to websites via amateur radio

T4A03

15. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. To provide a close match to the power supply output impedance
• B. To avoid RF interference
• C. To minimize radiative losses in the power cable
• D. To minimize voltage drop when transmitting

T1D06

16. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. The International Telecommunications Union (ITU) maintains a list of words that are not permitted to be used on amateur frequencies
• B. The FCC maintains a list of words that are not permitted to be used on amateur frequencies
• C. There is no such prohibition
• D. Any such language is prohibited

T9B07

17. Which of the following is true of PL-259 type coax connectors?

• A. They are preferred for microwave operation
• B. They are commonly used at HF and VHF frequencies
• C. They are watertight
• D. They are a bayonet-type connector

T8A10

18. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. About 6 MHz
• B. More than 10 MHz
• C. About 3 MHz
• D. About 1 MHz

T4B03

19. How is squelch adjusted so that a weak FM signal can be heard?

• A. Enable squelch enhancement
• B. Turn up the audio level until it overcomes the squelch threshold
• C. Set the squelch threshold so that receiver output audio is on all the time
• D. Turn on the anti-squelch function

T0B09

20. Why should you avoid attaching an antenna to a utility pole?

• A. All these choices are correct
• B. The antenna may unbalance the power transformer, causing power fluctuations
• C. The antenna will not work properly because of induced voltages
• D. The antenna could contact high-voltage power lines

T1A09

21. Who selects a Frequency Coordinator?

• A. The local chapter of the Office of National Council of Independent Frequency Coordinators
• B. Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
• C. The FCC Regional Field Office
• D. The FCC Office of Spectrum Management and Coordination Policy

T1C01

22. For which classes of amateur radio licenses does the FCC currently issue new licenses?

• A. Technician, Technician Plus, General, Amateur Extra
• B. Novice, Technician, General, Amateur Extra
• C. Technician, General, Amateur Extra
• D. Novice, Technician Plus, General, Advanced

T5B13

23. Which is equal to 2425 MHz?

• A. 242.5 GHz
• B. 24.25 GHz
• C. 0.002425 GHz
• D. 2.425 GHz

T1B06

24. On which HF bands does a Technician class operator have phone privileges?

• A. None
• B. 10-meter band only
• C. 80-meter, 40-meter, 15-meter, and 10-meter bands
• D. 30-meter band only

T6C07

25. What is component 8 in figure T-2?

• A. Resistor
• B. Light emitting diode
• C. Regulator IC
• D. Inductor

T9A11

26. What is antenna gain?

• A. The increase in impedance on receive or transmit compared to a reference antenna
• B. The additional power that is added to the transmitter power
• C. The increase in signal strength in a specified direction compared to a reference antenna
• D. The additional power that is required in the antenna when transmitting on a higher frequency

T1F08

27. What is the definition of third-party communications?

• A. Operation when the transmitting equipment is licensed to a person other than the control operator
• B. Amateur radio communications where three stations are in communications with one another
• C. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• D. A message from a control operator to another amateur station control operator on behalf of another person

T1E06

28. When, other than during an emergency, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. At no time
• B. When designated as the control operator by an Amateur Extra Class licensee
• C. When using a club station whose trustee holds an Amateur Extra Class license
• D. As part of a multi-operator contest team

T6D05

29. What type of circuit controls the amount of voltage from a power supply?

• A. Oscillator
• B. Filter
• C. Regulator
• D. Phase inverter

T5D05

30. What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

• A. 18 ohms
• B. 13.5 ohms
• C. 0.125 ohms
• D. 8 ohms

T3C10

31. Which of the following bands may provide long-distance communications via the ionosphere's F region during the peak of the sunspot cycle?

• A. 70 centimeters and 1.25 meters
• B. All these choices are correct
• C. 6 and 10 meters
• D. 23 centimeters

T7D11

32. Which of the following precautions should be taken when measuring in-circuit resistance with an ohmmeter?

• A. Ensure that the applied voltages are correct
• B. Ensure that the circuit is operating at the correct frequency
• C. Ensure that the circuit is grounded
• D. Ensure that the circuit is not powered

T0A08

33. Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

• A. In parallel with the hot conductor only
• B. In parallel with the hot and neutral conductors
• C. In series with the hot conductor only
• D. In series with the hot and neutral conductors

T8B09

34. What causes spin fading of satellite signals?

• A. Circular polarized noise interference radiated from the sun
• B. Doppler shift of the received signal
• C. Rotation of the satellite and its antennas
• D. Interfering signals within the satellite uplink band

T2C06

35. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• B. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
• C. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
• D. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service