Practice Exam

T3C04

1. 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

T1A01

2. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. All these choices are correct
• B. Advancing skills in the technical and communication phases of the radio art
• C. Providing communications for international non-profit organizations
• D. Providing personal radio communications for as many citizens as possible

T8A01

3. Which of the following is a form of amplitude modulation?

• A. Single sideband
• B. Spread spectrum
• C. Phase shift keying (PSK)
• D. Packet radio

T5D05

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

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

T1F09

5. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Message forwarding station
• B. Beacon station
• C. Repeater station
• D. Earth station

T2A12

6. What should you do before calling CQ?

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

T1B03

7. Which frequency is in the 6 meter amateur band?

• A. 222.15 MHz
• B. 49.00 MHz
• C. 28.50 MHz
• D. 52.525 MHz

T1D04

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

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

T3A05

9. When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

• A. Try to find a path that reflects signals to the repeater
• B. Change from vertical to horizontal polarization
• C. Try the long path
• D. Increase the antenna SWR

T7C03

10. What does a dummy load consist of?

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

T0A12

11. Which of the following precautions should be taken when measuring high voltages with a voltmeter?

• A. Ensure that the circuit is grounded through the voltmeter
• B. Ensure that the voltmeter has very low impedance
• C. Ensure that the voltmeter and leads are rated for use at the voltages to be measured
• D. Ensure that the voltmeter is set to the correct frequency

T2C05

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

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

T7D04

13. Which instrument is used to measure electric current?

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

T7A03

14. Which of the following is used to convert a signal from one frequency to another?

• A. Phase splitter
• B. Mixer
• C. Inverter
• D. Amplifier

T4A01

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

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

T5C13

16. What is the abbreviation for kilohertz?

• A. khz
• B. kHz
• C. khZ
• D. KHZ

T6A04

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

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

T6C02

18. What is component 1 in figure T-1?

• A. Transistor
• B. Battery
• C. Connector
• D. Resistor

T6D03

19. Which of the following is a reason to use shielded wire?

• A. To prevent coupling of unwanted signals to or from the wire
• B. To decrease the resistance of DC power connections
• C. To couple the wire to other signals
• D. To increase the current carrying capability of the wire

T3B11

20. What is the approximate velocity of a radio wave in free space?

• A. 300,000,000 miles per hour
• B. 150,000 meters per second
• C. 300,000,000 meters per second
• D. 150,000 miles per hour

T9A04

21. What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

• A. It has low efficiency
• B. It transmits only circularly polarized signals
• C. It is mechanically fragile
• D. All these choices are correct

T6B08

22. What does the abbreviation FET stand for?

• A. Frequency Emission Transmitter
• B. Free Electron Transmitter
• C. Fast Electron Transistor
• D. Field Effect Transistor

T5A06

23. What is the unit of frequency?

• A. Tesla
• B. Hertz
• C. Henry
• D. Farad

T1C06

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

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

T7B03

25. Which of the following can cause radio frequency interference?

• A. All these choices are correct
• B. Spurious emissions
• C. Fundamental overload
• D. Harmonics

T4B03

26. How is squelch adjusted so that a weak FM signal can be heard?

• A. Turn on the anti-squelch function
• B. Enable squelch enhancement
• C. Set the squelch threshold so that receiver output audio is on all the time
• D. Turn up the audio level until it overcomes the squelch threshold

T8B06

27. Which of the following are inputs to a satellite tracking program?

• A. The last observed time of zero Doppler shift
• B. All these choices are correct
• C. The Keplerian elements
• D. The satellite transmitted power

T8D05

28. Which of the following is an application of APRS?

• A. Showing automatically the number of packets transmitted via PACTOR during a specific time interval
• B. Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
• C. Providing information on the number of stations signed into a repeater
• D. Providing voice over internet connection between repeaters

T0C13

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

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

T8C06

30. How is over the air access to IRLP nodes accomplished?

• A. By obtaining a password that is sent via voice to the node
• B. By entering the proper internet password
• C. By using DTMF signals
• D. By using CTCSS tone codes

T1E06

31. When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

• A. When using a club station whose trustee holds an Amateur Extra Class license
• B. At no time
• C. As part of a multi-operator contest team
• D. When designated as the control operator by an Amateur Extra Class licensee

T0B02

32. What is required when climbing an antenna tower?

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

T5B10

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

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

T2B10

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

• A. QRM
• B. QSB
• C. QRN
• D. QTH

T9B03

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

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