Practice Exam

T1F08

1. What is the definition of third party communications?

• A. A message from a control operator to another amateur station control operator on behalf of another person
• B. Operation when the transmitting equipment is licensed to a person other than the control operator
• C. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments
• D. Amateur radio communications where three stations are in communications with one another

T6C11

2. What is component 4 in figure T-3?

• A. Antenna
• B. Transmitter
• C. Ground
• D. Dummy load

T5D05

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

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

T0B10

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

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

T5B01

5. How many milliamperes is 1.5 amperes?

• A. 150 milliamperes
• B. 1500 milliamperes
• C. 15,000 milliamperes
• D. 15 milliamperes

T2C07

6. 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

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

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

T7C05

8. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. To protect the output amplifier transistors
• B. To lower the SWR on the transmission line
• C. To comply with FCC rules on spectral purity
• D. Because power supplies cannot supply enough current at high SWR

T6D01

9. Which of the following devices or circuits changes an alternating current into a varying direct current signal?

• A. Rectifier
• B. Transformer
• C. Amplifier
• D. Reflector

T5A05

10. What is the electrical term for the force that causes electron flow?

• A. Ampere-hours
• B. Inductance
• C. Capacitance
• D. Voltage

T5C09

11. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 23.8 watts
• B. 138 watts
• C. 3.8 watts
• D. 0.7 watts

T3C02

12. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. HF accommodates wider bandwidth signals
• B. There is less atmospheric interference (static) on HF
• C. HF antennas are generally smaller
• D. Long-distance ionospheric propagation is far more common on HF

T2B07

13. How can you join a digital repeater's "talkgroup"?

• A. Program your radio with the group's ID or code
• B. Register your radio with the local FCC office
• C. Sign your call after the courtesy tone
• D. Join the repeater owner's club

T7B08

14. What should you do if something in a neighbor's home is causing harmful interference to your amateur station?

• A. Make sure your station meets the standards of good amateur practice
• B. Work with your neighbor to identify the offending device
• C. Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
• D. All these choices are correct

T8C09

15. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. IRLP
• B. EchoLink
• C. DMR
• D. D-STAR

T1D10

16. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Any transmission made by the licensed station
• B. Two-way transmissions by amateur stations
• C. Transmission of messages directed only to amateur operators
• D. Transmissions intended for reception by the general public

T0C03

17. How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

• A. It decreases by 50 percent
• B. It increases by a factor of 3
• C. It increases by a factor of 2
• D. There is no adjustment allowed for lower duty cycle

T9A01

18. What is a beam antenna?

• A. An antenna that concentrates signals in one direction
• B. An antenna that reverses the phase of received signals
• C. An omnidirectional antenna invented by Clarence Beam
• D. An antenna built from aluminum I-beams

T0A03

19. In the United States, what circuit does black wire insulation indicate in a three-wire 120 V cable?

• A. Neutral
• B. Black insulation is never used
• C. Equipment ground
• D. Hot

T3A02

20. What is the effect of vegetation on UHF and microwave signals?

• A. Knife-edge diffraction
• B. Absorption
• C. Polarization rotation
• D. Amplification

T8B05

21. What is a satellite beacon?

• A. A reflective surface on the satellite
• B. An indicator light that shows where to point your antenna
• C. A transmission from a satellite that contains status information
• D. The primary transmit antenna on the satellite

T6A03

22. What electrical parameter is controlled by a potentiometer?

• A. Capacitance
• B. Resistance
• C. Field strength
• D. Inductance

T7D04

23. Which instrument is used to measure electric current?

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

T4B06

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

T1C02

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

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

T4A06

26. What signals are used in a computer-radio interface for digital mode operation?

• A. Antenna and RF power
• B. Receive audio, transmit audio, and transmitter keying
• C. NMEA GPS location and DC power
• D. Receive and transmit mode, status, and location

T6B08

27. What does the abbreviation FET stand for?

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

T8D01

28. Which of the following is a digital communications mode?

• A. IEEE 802.11
• B. All these choices are correct
• C. FT8
• D. Packet radio

T3B04

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

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

T9B09

30. What can cause erratic changes in SWR?

• A. Local thunderstorm
• B. Over-modulation
• C. Overload from a strong local station
• D. Loose connection in the antenna or feed line

T1E09

31. Which of the following are required for remote control operation?

• A. A control operator is required at all times
• B. The control operator must indirectly manipulate the controls
• C. All these choices are correct
• D. The control operator must be at the control point

T1B12

32. Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

• A. 100 watts
• B. 1500 watts
• C. 50 watts
• D. 500 watts

T2A03

33. What is a common repeater frequency offset in the 70 cm band?

• A. Plus or minus 500 kHz
• B. Plus or minus 5 MHz
• C. Plus or minus 1 MHz
• D. Plus or minus 600 kHz

T1A11

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

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

T8A03

35. Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands?

• A. PM
• B. SSB
• C. FM
• D. DRM