Practice Exam

T0A08

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

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

T5B10

2. Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

• A. -1 dB
• B. -9 dB
• C. -3 dB
• D. -6 dB

T7A04

3. Which term describes the ability of a receiver to discriminate between multiple signals?

• A. Selectivity
• B. Sensitivity
• C. Discrimination ratio
• D. Harmonic distortion

T6A01

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

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

T8B05

5. What is a satellite beacon?

• A. An indicator light that shows where to point your antenna
• B. The primary transmit antenna on the satellite
• C. A transmission from a satellite that contains status information
• D. A reflective surface on the satellite

T7B07

6. Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

• A. Installing bypass capacitors on the microphone cable
• B. Using double-shielded coaxial cable
• C. Installing an RF preamplifier
• D. Installing a band-reject filter

T6B11

7. What is the term that describes a device's ability to amplify a signal?

• A. On resistance
• B. Gain
• C. Forward resistance
• D. Forward voltage drop

T7D02

8. How is a voltmeter connected to a component to measure applied voltage?

• A. In quadrature
• B. In series
• C. In phase
• D. In parallel

T2C11

9. What is meant by "check" in a radiogram header?

• A. The call sign of the originating station
• B. A box on the message form that indicates that the message was received and/or relayed
• C. The number of words or word equivalents in the text portion of the message
• D. A list of stations that have relayed the message

T1F05

10. What method of call sign identification is required for a station transmitting phone signals?

• A. Send the call sign using only a phone emission
• B. Send the call sign followed by the indicator RPT
• C. Send the call sign using a CW or phone emission
• D. Send the call sign followed by the indicator R

T1E09

11. Which of the following are required for remote control operation?

• A. The control operator must be at the control point
• B. A control operator is required at all times
• C. The control operator must indirectly manipulate the controls
• D. All these choices are correct

T4B04

12. What is a way to enable quick access to a favorite frequency or channel on your transceiver?

• A. Enable the VOX
• B. Use the scan mode to select the desired frequency
• C. Store it in a memory channel
• D. Enable the frequency offset

T0C13

13. Who is responsible for ensuring that no person is exposed to RF energy above the FCC exposure limits?

• A. Anyone who is near an antenna
• B. The station licensee
• C. The FCC
• D. The local zoning board

T5C11

14. 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

T5A11

15. What type of current flow is opposed by resistance?

• A. Alternating current
• B. RF current
• C. All these choices are correct
• D. Direct current

T6D04

16. Which of the following displays an electrical quantity as a numeric value?

• A. Relay
• B. Potentiometer
• C. Transistor
• D. Meter

T6C08

17. What is component 9 in figure T-2?

• A. Variable capacitor
• B. Variable resistor
• C. Variable transformer
• D. Variable inductor

T3A04

18. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

• A. Signals have an echo effect
• B. The modulation sidebands might become inverted
• C. Received signal strength is reduced
• D. Nothing significant will happen

T2A12

19. What should you do before calling CQ?

• A. Ask if the frequency is in use
• B. Listen first to be sure that no one else is using the frequency
• C. All these choices are correct
• D. Make sure you are authorized to use that frequency

T1D01

20. With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

• A. Any country banned from such communications by the International Amateur Radio Union (IARU)
• B. Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
• C. Any country banned from making such communications by the American Radio Relay League (ARRL)
• D. Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

T0B04

21. Which of the following is an important safety precaution to observe when putting up an antenna tower?

• A. All these choices are correct
• B. Look for and stay clear of any overhead electrical wires
• C. Insulate the base of the tower to avoid lightning strikes
• D. Wear a ground strap connected to your wrist at all times

T9A09

22. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 50
• B. 112
• C. 236
• D. 6

T8C08

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

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

T3B08

24. What frequency range is referred to as VHF?

• A. 30 kHz to 300 kHz
• B. 30 MHz to 300 MHz
• C. 300 MHz to 3000 MHz
• D. 300 kHz to 3000 kHz

T8A05

25. Which of the following types of signal has the narrowest bandwidth?

• A. SSB voice
• B. Slow-scan TV
• C. FM voice
• D. CW

T3C05

26. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Doppler shift
• B. Knife-edge diffraction
• C. Faraday rotation
• D. Quantum tunneling

T1C06

27. From which of the following locations may an FCC-licensed amateur station transmit?

• A. From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
• B. From within any country that belongs to the International Telecommunication Union
• C. From within any country that is a member of the United Nations
• D. From any vessel or craft located in international waters and documented or registered in the United States

T4A01

28. Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

• A. 24.0 volts at 12 amperes
• B. 24.0 volts at 4 amperes
• C. 13.8 volts at 4 amperes
• D. 13.8 volts at 12 amperes

T5D05

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

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

T9B08

30. Which of the following is a source of loss in coaxial feed line?

• A. Water intrusion into coaxial connectors
• B. High SWR
• C. Multiple connectors in the line
• D. All these choices are correct

T2B12

31. What is the purpose of the color code used on DMR repeater systems?

• A. Defines the frequency pair to use
• B. Identifies the codec used
• C. Must match the repeater color code for access
• D. Defines the minimum signal level required for access

T8D04

32. What type of transmission is indicated by the term "NTSC?"

• A. A special mode for satellite uplink
• B. A Normal Transmission mode in Static Circuit
• C. An analog fast-scan color TV signal
• D. A frame compression scheme for TV signals

T1A06

33. What is the FCC Part 97 definition of a beacon?

• A. A bulletin sent by the FCC to announce a national emergency
• B. An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
• C. A government transmitter marking the amateur radio band edges
• D. A continuous transmission of weather information authorized in the amateur bands by the National Weather Service

T7C03

34. What does a dummy load consist of?

• A. A 50-ohm reactance used to terminate a transmission line
• B. A low-voltage power supply and a DC relay
• C. A non-inductive resistor mounted on a heat sink
• D. A high-gain amplifier and a TR switch

T1B07

35. Which of the following VHF/UHF band segments are limited to CW only?

• A. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
• B. All these choices are correct
• C. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• D. 902.0 MHz to 902.1 MHz