Practice Exam

T1B10

1. Where may SSB phone be used in amateur bands above 50 MHz?

• A. Only in sub-bands allocated to General class or higher licensees
• B. On any band if the power is limited to 25 watts
• C. Only on repeaters
• D. In at least some segment of all these bands

T1D01

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

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

T1F07

3. Which of the following restrictions apply when a non-licensed person is allowed to speak to a foreign station using a station under the control of a licensed amateur operator?

• A. The licensed control operator must do the station identification
• B. The person must be a U.S. citizen
• C. All these choices are correct
• D. The foreign station must be in a country with which the U.S. has a third party agreement

T5B11

4. Which decibel value represents a power increase from 20 watts to 200 watts?

• A. 12 dB
• B. 28 dB
• C. 18 dB
• D. 10 dB

T5A01

5. Electrical current is measured in which of the following units?

• A. Ohms
• B. Volts
• C. Watts
• D. Amperes

T5C08

6. What is the formula used to calculate electrical power (P) in a DC circuit?

• A. P = E * I
• B. P = E + I
• C. P = E / I
• D. P = E - I

T3C03

7. What is a characteristic of VHF signals received via auroral backscatter?

• A. They occur only during winter nighttime hours
• B. They are generally strongest when your antenna is aimed west
• C. They are often received from 10,000 miles or more
• D. They are distorted and signal strength varies considerably

T7A10

8. What device increases the transmitted output power from a transceiver?

• A. All these choices are correct
• B. A voltage divider
• C. An RF power amplifier
• D. An impedance network

T0C01

9. What type of radiation are radio signals?

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

T5D06

10. What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

• A. 8 ohms
• B. 48 ohms
• C. 3 ohms
• D. 16 ohms

T1E04

11. What determines the transmitting frequency privileges of an amateur station?

• A. The frequencies printed on the license grant
• B. The frequency authorized by the frequency coordinator
• C. The highest class of operator license held by anyone on the premises
• D. The class of operator license held by the control operator

T6C08

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

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

T4B10

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

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

T8A08

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

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

T2A05

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

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

T8B07

16. What is Doppler shift in reference to satellite communications?

• A. A special digital communications mode for some satellites
• B. A change in the satellite orbit
• C. A mode where the satellite receives signals on one band and transmits on another
• D. An observed change in signal frequency caused by relative motion between the satellite and Earth station

T3B10

17. What frequency range is referred to as HF?

• A. 300 to 3000 kHz
• B. 3 to 30 MHz
• C. 30 to 300 MHz
• D. 300 to 3000 MHz

T1C02

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

T2C05

19. What does the term "traffic" refer to in net operation?

• A. Operation by mobile or portable stations
• B. Requests to activate the net by a served agency
• C. The number of stations checking in and out of a net
• D. Messages exchanged by net stations

T7B09

20. What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

• A. Be sure all TV feed line coaxial connectors are installed properly
• B. Add a preamplifier to the TV antenna input
• C. Add a low-pass filter to the TV antenna input
• D. Add a high-pass filter to the TV antenna input

T3A12

21. What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

• A. Absorption
• B. Range increase
• C. Deflection
• D. There is little effect

T7C06

22. What does an SWR reading of 4:1 indicate?

• A. Loss of -4 dB
• B. Gain of +4 dB
• C. Impedance mismatch
• D. Good impedance match

T0A10

23. What hazard is caused by charging or discharging a battery too quickly?

• A. Inverse memory effect
• B. Half-wave rectification
• C. Overheating or out-gassing
• D. Excess output ripple

T8C01

24. Which of the following methods is used to locate sources of noise interference or jamming?

• A. Doppler radar
• B. Echolocation
• C. Phase locking
• D. Radio direction finding

T7D01

25. Which instrument would you use to measure electric potential?

• A. A voltmeter
• B. An ammeter
• C. A wavemeter
• D. An ohmmeter

T0B09

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

• A. The 60 Hz radiations from the feed line may increase the SWR
• B. The antenna will not work properly because of induced voltages
• C. All these choices are correct
• D. The antenna could contact high-voltage power lines

T8D09

27. What is CW?

• A. Another name for a Morse code transmission
• B. A technique for coil winding
• C. A type of electromagnetic propagation
• D. A digital mode used primarily on 2 meter FM

T2B06

28. What type of signaling uses pairs of audio tones?

• A. CTCSS
• B. DTMF
• C. D-STAR
• D. GPRS

T9B02

29. What is the most common impedance of coaxial cables used in amateur radio?

• A. 50 ohms
• B. 8 ohms
• C. 600 ohms
• D. 12 ohms

T6A06

30. What type of electrical component stores energy in a magnetic field?

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

T4A12

31. 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 for switching antennas from transmit to receive
• D. A device that assists in manual sending of Morse code

T6B09

32. What are the names for the electrodes of a diode?

• A. Plus and minus
• B. Gate and base
• C. Source and drain
• D. Anode and cathode

T9A12

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

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

T1A06

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

• A. A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
• 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 bulletin sent by the FCC to announce a national emergency

T6D02

35. What is a relay?

• A. A pass transistor
• B. An inverting amplifier
• C. A current controlled amplifier
• D. An electrically-controlled switch