Practice Exam

T3A03

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

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

T0A04

2. What is the purpose of a fuse in an electrical circuit?

• A. To limit current to prevent shocks
• B. To prevent power supply ripple from damaging a component
• C. To remove power in case of overload
• D. All these choices are correct

T1F01

3. When must the station and its records be available for FCC inspection?

• A. At any time after written notification by the FCC of such inspection
• B. Only when presented with a valid warrant by an FCC official or government agent
• C. At any time upon request by an FCC representative
• D. At any time ten days after notification by the FCC of such an inspection

T8D07

4. Which of the following describes DMR?

• A. An automatic computer logging technique for hands-off logging when communicating while operating a vehicle
• B. A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel
• C. A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction
• D. An automatic position tracking mode for FM mobiles communicating through repeaters

T1A11

5. When is willful interference to other amateur radio stations permitted?

• A. At any time, stations in the Amateur Radio Service are not protected from willful interference
• B. When making short test transmissions
• C. At no time
• D. To stop another amateur station that is breaking the FCC rules

T3C04

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

T7B02

7. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The deviation of an FM transmitter is set too low
• B. The audio amplifier of the transmitter is overloaded
• C. The microphone gain of the transmitter is turned up too high
• D. The receiver is unable to reject strong signals outside the AM or FM band

T5B09

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

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

T2B02

9. What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

• A. CTCSS
• B. Tone burst
• C. DTMF
• D. Carrier squelch

T0C08

10. Which of the following actions can reduce exposure to RF radiation?

• A. Relocate antennas
• B. All these choices are correct
• C. Relocate the transmitter
• D. Increase the duty cycle

T8A09

11. What is the approximate bandwidth of a VHF repeater FM voice signal?

• A. About 150 kHz
• B. Between 50 and 125 kHz
• C. Less than 500 Hz
• D. Between 10 and 15 kHz

T8B08

12. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite operates using ultraviolet frequencies
• B. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• C. The satellite frequencies are usually variable
• D. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band

T3B04

13. What is the velocity of a radio wave traveling through free space?

• A. Speed inversely proportional to its wavelength
• B. Speed of sound
• C. Speed of light
• D. Speed that increases as the frequency increases

T1D01

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

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

T9A12

15. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It eliminates distortion caused by reflected signals
• B. It radiates at a very high angle
• C. It has 10 times the power gain of a 1/4 wavelength whip
• D. It has more gain than a 1/4-wavelength antenna

T5D09

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

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

T4B12

17. What is the result of tuning an FM receiver above or below a signal's frequency?

• A. Change in audio pitch
• B. Distortion of the signal's audio
• C. Sideband inversion
• D. Generation of a heterodyne tone

T9B11

18. Which of the following types of feed line has the lowest loss at VHF and UHF?

• A. 50-ohm flexible coax
• B. Air-insulated hardline
• C. 75-ohm flexible coax
• D. Multi-conductor unbalanced cable

T1E02

19. Who may be the control operator of a station communicating through an amateur satellite or space station?

• A. A General class or higher licensee with a satellite operator certification
• B. Only an Amateur Extra Class operator
• C. Any amateur allowed to transmit on the satellite uplink frequency
• D. Only an Amateur Extra Class operator who is also an AMSAT member

T6D05

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

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

T6B10

21. Which of the following can provide power gain?

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

T5C04

22. What is the unit of inductance?

• A. The coulomb
• B. The henry
• C. The ohm
• D. The farad

T2A05

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

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

T7A01

24. Which term describes the ability of a receiver to detect the presence of a signal?

• A. Sensitivity
• B. Total Harmonic Distortion
• C. Linearity
• D. Selectivity

T4A03

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

• A. To minimize voltage drop when transmitting
• B. All these choices are correct
• C. To avoid RF interference
• D. To provide a good counterpoise for the antenna

T8C04

26. Which of the following is good procedure when contacting another station in a contest?

• A. Send only the minimum information needed for proper identification and the contest exchange
• B. Sign only the last two letters of your call if there are many other stations calling
• C. Contact the station twice to be sure that you are in his log
• D. All these choices are correct

T1B05

27. How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

• A. Spread spectrum only
• B. Fixed digital message forwarding systems only
• C. Emergency traffic only
• D. Fast-scan television only

T2C06

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

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

T6A04

29. What electrical component stores energy in an electric field?

• A. Capacitor
• B. Varistor
• C. Inductor
• D. Diode

T5A08

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

• A. Glass
• B. Aluminum
• C. Copper
• D. Mercury

T7C11

31. What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

• A. It has more loss per foot
• B. It cannot be used for VHF or UHF antennas
• C. It requires special techniques to prevent moisture in the cable
• D. It cannot be used at below freezing temperatures

T6C07

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

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

T1C02

33. Who may select a desired call sign under the vanity call sign rules?

• A. Only a licensed amateur with a General or Amateur Extra Class license
• B. Only a licensed amateur with an Amateur Extra Class license
• C. Any licensed amateur
• D. Only a licensed amateur who has been licensed continuously for more than 10 years

T0B02

34. What is required when climbing an antenna tower?

• A. Have sufficient training on safe tower climbing techniques
• B. Always wear an approved climbing harness
• C. All these choices are correct
• D. Use appropriate tie-off to the tower at all times

T7D11

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

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