Practice Exam

T5C06

1. What is the abbreviation for kilohertz?

• A. KHz
• B. khz
• C. KHZ
• D. kHz

T3C04

2. Which of the following types of propagation is most commonly associated with occasional strong signals on the 10-, 6-, and 2-meter bands from beyond the radio horizon?

• A. Sporadic E
• B. Gray-line propagation
• C. Backscatter
• D. D region absorption

T8D02

3. What is FT8?

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

T1A08

4. Who recommends transmit/receive channels for repeater and auxiliary stations?

• A. An FCC Regional Field Office
• B. The International Telecommunication Union
• C. A Frequency Spectrum Manager appointed by the FCC
• D. A Volunteer Frequency Coordinator recognized by local amateurs

T1F02

5. How often must you identify with your FCC-assigned call sign when using tactical call signs such as "Race Headquarters"?

• A. At least every 10 minutes during and at the end of a communication
• B. Once every hour
• C. Never, the tactical call is sufficient
• D. At the end of every transmission

T6A02

6. What type of component is often used as an adjustable volume control?

• A. Fixed resistor
• B. Power resistor
• C. Potentiometer
• D. Transformer

T1B09

7. Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

• A. So that modulation sidebands do not extend beyond the band edge
• B. All these choices are correct
• C. To allow for calibration error in the transmitter frequency display
• D. To allow for transmitter frequency drift

T7A08

8. Which of the following describes combining speech with an RF carrier signal?

• A. Modulation
• B. Low-pass filtering
• C. Oscillation
• D. Impedance matching

T9B05

9. What happens as the frequency of a signal in coaxial cable is increased?

• A. The loss decreases
• B. The characteristic impedance increases
• C. The loss increases
• D. The characteristic impedance decreases

T1E07

10. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. Only the control operator
• B. The control operator and the station licensee
• C. Only the station licensee
• D. All licensed amateurs who are present at the operation

T3A03

11. What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

• A. Horizontal
• B. Right-hand circular
• C. Vertical
• D. Left-hand circular

T7D06

12. Which of the following can damage a multimeter?

• A. Failing to connect one of the probes to ground
• B. Attempting to measure resistance using the voltage setting
• C. Not allowing it to warm up properly
• D. Attempting to measure voltage when using the resistance setting

T4B06

13. Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

• A. The tone squelch
• B. The AGC or limiter
• C. The RIT or Clarifier
• D. The bandwidth selection

T7C01

14. What is the primary purpose of a dummy load?

• A. To prevent over-modulation of a transmitter
• B. To prevent transmitting signals over the air when making tests
• C. To improve the efficiency of an antenna
• D. To improve the signal-to-noise ratio of a receiver

T5A04

15. What term describes the number of times per second that an alternating current makes a complete cycle?

• A. Pulse rate
• B. Wavelength
• C. Wave number
• D. Frequency

T5B06

16. Which is equal to 3000 milliamperes?

• A. 0.3 amperes
• B. 3 amperes
• C. 3,000,000 amperes
• D. 0.003 amperes

T7B06

17. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• B. Immediately turn off your transmitter and contact the nearest FCC office for assistance
• C. All these choices are correct
• D. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel

T3B05

18. What is the relationship between wavelength and frequency?

• A. Wavelength is constant at all frequencies
• B. Wavelength gets longer as frequency increases
• C. Wavelength gets shorter as frequency increases
• D. Wavelength and frequency increase as path length increases

T8B03

19. Which of the following are provided by satellite tracking programs?

• A. The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
• B. All these choices are correct
• C. The apparent frequency of the satellite transmission, including effects of Doppler shift
• D. Maps showing the real-time position of the satellite track over Earth

T2C09

20. Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

• A. Yes, but only when part of a RACES emergency plan
• B. Yes, but only when part of a FEMA emergency plan
• C. No
• D. Yes, but only in situations involving the immediate safety of human life or protection of property

T6B10

21. Which of the following can provide power gain?

• A. Transformer
• B. Reactor
• C. Transistor
• D. Resistor

T0A05

22. Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

• A. Voltage drop in the higher current fuse could result in excessively low voltage to the device
• B. Excessive current could cause a fire
• C. The power supply ripple would greatly increase
• D. The larger fuse would be likely to blow because it is rated for higher current

T0B01

23. Which of the following is good practice when installing ground wires on a tower for lightning protection?

• A. Make sure all ground wire bends are right angles
• B. Put a drip loop in the ground connection to prevent water damage to the ground system
• C. Ensure that connections are short and direct
• D. All these choices are correct

T9A08

24. Why is a 19-inch-long vertical antenna often used on 2 meters?

• A. It is a resonant quarter-wave
• B. It is a resonant half-wave
• C. It has high gain
• D. It has low RF radiation exposure

T0C05

25. Why do exposure limits vary with frequency?

• A. Higher frequency RF fields are transient in nature
• B. Lower frequency RF fields do not penetrate the human body
• C. Lower frequency RF fields have more energy than higher frequency fields
• D. The human body absorbs more RF energy at some frequencies than at others

T2A02

26. What is the national calling frequency for FM simplex operations in the 2-meter band?

• A. 145.000 MHz
• B. 446.000 MHz
• C. 432.100 MHz
• D. 146.520 MHz

T1C03

27. What types of international communications are FCC-licensed amateur radio stations permitted to make?

• A. Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
• B. Communications incidental to conducting business or remarks of a personal nature
• C. Only communications incidental to contest exchanges; all other communications are prohibited
• D. Any communications that would be permitted by an international broadcast station

T1D04

28. Under what conditions is an amateur station authorized to transmit music using a phone emission?

• A. When incidental to an authorized retransmission of manned spacecraft communications
• B. When the music is transmitted above 1280 MHz
• C. When transmissions are limited to less than three minutes per hour
• D. When the music produces no spurious emissions

T5D14

29. In which type of circuit is the voltage always the same across all components?

• A. Branch
• B. Resonant
• C. Parallel
• D. Series

T8C03

30. What operating activity involves contacting as many stations as possible during a specified period?

• A. Hidden transmitter hunts
• B. Net operations
• C. Contesting
• D. Simulated emergency exercises

T4A08

31. Which of the following conductors is preferred for bonding at RF?

• A. Copper braid removed from coaxial cable
• B. Twisted-pair cable
• C. Copper-clad steel wire
• D. Flat copper strap

T6C12

32. Which of the following is accurately represented in electrical schematics?

• A. Component connections
• B. Physical appearance of components
• C. Wire lengths
• D. All these choices are correct

T6D07

33. Which of the following is commonly used as a visual indicator?

• A. LED
• B. FET
• C. All these choices are correct
• D. Zener diode

T2B10

34. Which Q signal indicates that you are receiving interference from other stations?

• A. QRN
• B. QTH
• C. QRM
• D. QSB

T8A08

35. What is the approximate bandwidth of a typical single sideband (SSB) voice signal?

• A. 3 kHz
• B. 6 kHz
• C. 1 kHz
• D. 15 kHz