Practice Exam

T2C10

1. What information is contained in the preamble of a formal traffic message?

• A. The address of the intended recipient
• B. The telephone number of the addressee
• C. Information needed to track the message
• D. The email address of the originating station

T3B09

2. What frequency range is referred to as UHF?

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

T5A10

3. Which term describes the rate at which electrical energy is used?

• A. Voltage
• B. Current
• C. Resistance
• D. Power

T6A01

4. What electrical component opposes the flow of current in a DC circuit?

• A. Inverter
• B. Transformer
• C. Inductor
• D. Resistor

T4B05

5. What does the scanning function of an FM transceiver do?

• A. Prevents interference to nearby repeaters
• B. Tunes through a range of frequencies to check for activity
• C. Checks for messages left on a digital bulletin board
• D. Checks incoming signal deviation

T7B06

6. Which of the following actions should you take if a neighbor tells you that your station's transmissions are interfering with their radio or TV reception?

• A. All these choices are correct
• B. Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated
• C. Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
• D. Immediately turn off your transmitter and contact the nearest FCC office for assistance

T2B06

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

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

T3C02

8. 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. Long-distance ionospheric propagation is far more common on HF
• D. HF antennas are generally smaller

T7D11

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

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

T1C01

10. For which license classes are new licenses currently available from the FCC?

• A. Technician, Technician Plus, General, Amateur Extra
• B. Novice, Technician, General, Amateur Extra
• C. Novice, Technician Plus, General, Advanced
• D. Technician, General, Amateur Extra

T1E07

11. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. Only the station licensee
• B. The control operator and the station licensee
• C. Only the control operator
• D. All licensed amateurs who are present at the operation

T6B03

12. Which of these components can be used as an electronic switch?

• A. Transistor
• B. Potentiometer
• C. Varistor
• D. Thermistor

T8B07

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

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

T9A06

14. Which of the following types of antenna offers the greatest gain?

• A. Isotropic
• B. J pole
• C. 5/8 wave vertical
• D. Yagi

T7A08

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

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

T0B03

16. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. When no mechanical work is being performed
• B. When the work being done is not more than 20 feet above the ground
• C. When no electrical work is being performed
• D. Never

T2A07

17. What is meant by "repeater offset"?

• A. The repeater station identification is done on a separate frequency
• B. The repeater has a time delay to prevent interference
• C. The difference between a repeater's transmit and receive frequencies
• D. The number of simultaneous transmit frequencies used by a repeater

T5C13

18. What is the abbreviation for kilohertz?

• A. khZ
• B. khz
• C. kHz
• D. KHZ

T4A09

19. How can you determine the length of time that equipment can be powered from a battery?

• A. Divide the battery ampere-hour rating by the average current draw of the equipment
• B. Multiply the square of the current rating of the battery by the input resistance of the equipment
• C. Divide the watt-hour rating of the battery by the peak power consumption of the equipment
• D. Multiply the watts per hour consumed by the equipment by the battery power rating

T1F08

20. What is the definition of third party communications?

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

T8D01

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

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

T8C05

22. What is a grid locator?

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

T0A03

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

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

T1D03

24. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only during contests
• B. Never
• C. Only when transmitting control commands to space stations or radio control craft
• D. Only when transmitting certain approved digital codes

T0C12

25. How does RF radiation differ from ionizing radiation (radioactivity)?

• A. RF radiation is perfectly safe
• B. RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
• C. RF radiation is limited in range to a few feet
• D. RF radiation can only be detected with an RF dosimeter

T6C04

26. What is component 3 in figure T-1?

• A. Transistor
• B. Ground symbol
• C. Resistor
• D. Lamp

T1B07

27. Which of the following VHF/UHF band segments are limited to CW only?

• A. 902.0 MHz to 902.1 MHz
• B. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• C. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
• D. All these choices are correct

T9B10

28. What is the electrical difference between RG-58 and RG-213 coaxial cable?

• A. RG-58 cable has two shields
• B. There is no significant difference between the two types
• C. RG-213 cable has less loss at a given frequency
• D. RG-58 cable can handle higher power levels

T8A07

29. What is a characteristic of single sideband (SSB) compared to FM?

• A. All these choices are correct
• B. SSB signals have narrower bandwidth
• C. SSB signals are easier to tune in correctly
• D. SSB signals are less susceptible to interference

T3A12

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

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

T6D11

31. Which of the following is a resonant or tuned circuit?

• A. A circuit designed to provide high-fidelity audio
• B. An inductor and a capacitor in series or parallel
• C. A linear voltage regulator
• D. A resistor circuit used for reducing standing wave ratio

T5B08

32. Which is equal to 1,000,000 picofarads?

• A. 0.001 microfarads
• B. 1 microfarad
• C. 1,000,000,000 microfarads
• D. 1000 microfarads

T7C11

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

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

T5D14

34. In which type of circuit is voltage the same across all components?

• A. Parallel
• B. Resonant
• C. Series
• D. Branch

T1A09

35. 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