Practice Exam

T9B03

1. Why is coaxial cable the most common feed line for amateur radio antenna systems?

• A. It is less expensive than any other type of feed line
• B. It can handle more power than any other type of feed line
• C. It is easy to use and requires few special installation considerations
• D. It has less loss than any other type of feed line

T5A04

2. What are the units of electrical resistance?

• A. Siemens
• B. Mhos
• C. Ohms
• D. Coulombs

T4B10

3. Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

• A. 500 Hz
• B. 5000 Hz
• C. 2400 Hz
• D. 1000 Hz

T1D09

4. When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

• A. Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
• B. When broadcasting communications to or from the space shuttle
• C. When such communications are directly related to the immediate safety of human life or protection of property
• D. Never

T7C01

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

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

T0B10

6. Which of the following is true when installing grounding conductors used for lightning protection?

• A. Sharp bends must be avoided
• B. Common grounds must be avoided
• C. Use only non-insulated wire
• D. Wires must be carefully routed with precise right-angle bends

T2C07

7. Which of the following is standard practice when you participate in a net?

• A. All these choices are correct
• B. Unless you are reporting an emergency, transmit only when directed by the net control station
• C. Record the time of each of your transmissions
• D. When first responding to the net control station, transmit your call sign, name, and address as in the FCC database

T7A08

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

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

T1A09

9. Who selects a Frequency Coordinator?

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

T5D09

10. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 0.1 amperes
• B. 216 amperes
• C. 24,000 amperes
• D. 10 amperes

T2B11

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

• A. QRZ
• B. QSY
• C. QRU
• D. QSL

T6D10

12. What is the function of component 2 in figure T-1?

• A. Supply electrical energy
• B. Give off light when current flows through it
• C. Control the flow of current
• D. Convert electrical energy into radio waves

T9A09

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

• A. 6
• B. 50
• C. 112
• D. 236

T3C07

14. What band is best suited for communicating via meteor scatter?

• A. 33 centimeters
• B. 70 centimeters
• C. 6 meters
• D. 2 meters

T6B10

15. Which of the following can provide power gain?

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

T0A08

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

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

T7D08

17. Which of the following types of solder should not be used for radio and electronic applications?

• A. Acid-core solder
• B. Rosin-core solder
• C. Lead-tin solder
• D. Tin-copper solder

T2A05

18. How should you respond to a station calling CQ?

• A. Transmit the other station's call sign followed by your call sign
• B. Transmit a signal report followed by your call sign
• C. Transmit your call sign followed by the other station's call sign
• D. Transmit "CQ" followed by the other station's call sign

T0C01

19. What type of radiation are radio signals?

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

T5C01

20. What describes the ability to store energy in an electric field?

• A. Resistance
• B. Inductance
• C. Tolerance
• D. Capacitance

T3B05

21. What is the relationship between wavelength and frequency?

• A. Wavelength gets shorter as frequency increases
• B. Wavelength gets longer as frequency increases
• C. Wavelength and frequency increase as path length increases
• D. Wavelength and frequency are unrelated

T8B11

22. Who may receive telemetry from a space station?

• A. A licensed radio amateur with a transmitter equipped for interrogating the satellite
• B. A licensed radio amateur who has been certified by the protocol developer
• C. A licensed radio amateur who has registered for an access code from AMSAT
• D. Anyone

T8A12

23. Which of the following is a disadvantage of FM compared with single sideband?

• A. FM signals are harder to tune
• B. Only one signal can be received at a time
• C. Voice quality is poorer
• D. All these choices are correct

T8D06

24. What does the abbreviation "PSK" mean?

• A. Phased Slide Keying
• B. Phase Shift Keying
• C. Pulse Shift Keying
• D. Packet Short Keying

T5B09

25. Which decibel value most closely represents a power increase from 5 watts to 10 watts?

• A. 3 dB
• B. 10 dB
• C. 2 dB
• D. 5 dB

T4A12

26. What is an electronic keyer?

• A. An interlock to prevent unauthorized use of a radio
• B. A device for voice activated switching from receive to transmit
• C. A device that assists in manual sending of Morse code
• D. A device for switching antennas from transmit to receive

T1F02

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

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

T1C07

28. Which of the following can result in revocation of the station license or suspension of the operator license?

• A. Failure to inform the FCC of any changes in the amateur station following performance of an RF safety environmental evaluation
• B. Failure to obtain FCC type acceptance prior to using a home-built transmitter
• C. Failure to have a copy of your license available at your station
• D. Failure to provide and maintain a correct email address with the FCC

T3A10

29. What effect does multi-path propagation have on data transmissions?

• A. Transmission rates must be decreased by a factor equal to the number of separate paths observed
• B. No significant changes will occur if the signals are transmitted using FM
• C. Transmission rates must be increased by a factor equal to the number of separate paths observed
• D. Error rates are likely to increase

T7B11

30. What is a symptom of RF feedback in a transmitter or transceiver?

• A. Frequent blowing of power supply fuses
• B. The transmitter will not stay on the desired frequency
• C. Excessive SWR at the antenna connection
• D. Reports of garbled, distorted, or unintelligible voice transmissions

T6A12

31. What type of switch is represented by component 3 in figure T-2?

• A. Double-pole single-throw
• B. Single-pole double-throw
• C. Single-pole single-throw
• D. Double-pole double-throw

T8C05

32. What is a grid locator?

• A. An instrument for neutralizing a final amplifier
• B. An instrument for radio direction finding
• C. A letter-number designator assigned to an azimuth and elevation
• D. A letter-number designator assigned to a geographic location

T1B02

33. Which amateurs may contact the International Space Station (ISS) on VHF bands?

• A. Any amateur holding a General class or higher license who has applied for and received approval from NASA
• B. Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
• C. Any amateur holding a General class or higher license
• D. Any amateur holding a Technician class or higher license

T1E10

34. Which of the following is an example of remote control as defined in Part 97?

• A. Controlling a model aircraft, boat, or car by amateur radio
• B. All these choices are correct
• C. Operating the station over the internet
• D. Repeater operation

T6C08

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

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