Practice Exam

T7C03

1. What does a dummy load consist of?

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

T8B01

2. What telemetry information is typically transmitted by satellite beacons?

• A. All these choices are correct
• B. The signal strength of received signals
• C. Health and status of the satellite
• D. Time of day accurate to plus or minus 1/10 second

T9B02

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

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

T7A10

4. 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

T6B08

5. What does the abbreviation FET stand for?

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

T3C05

6. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Knife-edge diffraction
• B. Doppler shift
• C. Faraday rotation
• D. Quantum tunneling

T3A04

7. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

• A. Received signal strength is reduced
• B. The modulation sidebands might become inverted
• C. Nothing significant will happen
• D. Signals have an echo effect

T2A02

8. What is the national calling frequency for FM simplex operations in the 2 meter band?

• A. 145.000 MHz
• B. 146.520 MHz
• C. 432.100 MHz
• D. 446.000 MHz

T2C11

9. What is meant by "check" in a radiogram header?

• A. A box on the message form that indicates that the message was received and/or relayed
• B. The number of words or word equivalents in the text portion of the message
• C. A list of stations that have relayed the message
• D. The call sign of the originating station

T1D05

10. When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

• A. When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives
• B. When no profit is made on the sale
• C. Never
• D. When selling amateur radio equipment and not on a regular basis

T5C11

11. How much current is required to deliver 120 watts at a voltage of 12 volts DC?

• A. 132 amperes
• B. 0.1 amperes
• C. 12 amperes
• D. 10 amperes

T6A12

12. What type of switch is represented by component 3 in figure T-2?

• A. Single-pole single-throw
• B. Single-pole double-throw
• C. Double-pole double-throw
• D. Double-pole single-throw

T6C09

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

• A. Double-pole switch
• B. Potentiometer
• C. Transformer
• D. Variable inductor

T4A05

14. Where should an RF power meter be installed?

• A. In the feed line, between the transmitter and antenna
• B. In parallel with the push-to-talk line and the antenna
• C. In the power supply cable, as close as possible to the radio
• D. At the power supply output

T5A06

15. What is the unit of frequency?

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

T9A04

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

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

T1C04

17. What may happen if the FCC is unable to reach you by email?

• A. Fine and suspension of operator license
• B. Revocation of access to the license record in the FCC system
• C. Nothing; there is no such requirement
• D. Revocation of the station license or suspension of the operator license

T8C11

18. What is an amateur radio station that connects other amateur stations to the internet?

• A. A gateway
• B. A beacon
• C. A repeater
• D. A digipeater

T7D11

19. 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 grounded
• C. Ensure that the applied voltages are correct
• D. Ensure that the circuit is operating at the correct frequency

T1B03

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

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

T8A06

21. Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

• A. Lower sideband
• B. Suppressed sideband
• C. Inverted sideband
• D. Upper sideband

T0B06

22. What is the minimum safe distance from a power line to allow when installing an antenna?

• A. 1/2 wavelength at the operating frequency
• B. Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
• C. Add the height of the antenna to the height of the power line and multiply by a factor of 1.5
• D. The height of the power line above ground

T5B13

23. Which is equal to 2425 MHz?

• A. 2425 GHz
• B. 0.002425 GHz
• C. 24.25 GHz
• D. 2.425 GHz

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

T2B12

25. What is the purpose of the color code used on DMR repeater systems?

• A. Must match the repeater color code for access
• B. Identifies the codec used
• C. Defines the minimum signal level required for access
• D. Defines the frequency pair to use

T8D10

26. Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

• A. Weak signal propagation beacons
• B. All these choices are correct
• C. Meteor scatter
• D. Earth-Moon-Earth

T6D08

27. Which of the following is combined with an inductor to make a resonant circuit?

• A. Resistor
• B. Zener diode
• C. Capacitor
• D. Potentiometer

T1E02

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

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

T1A05

29. What proves that the FCC has issued an operator/primary license grant?

• A. An email notification from the NCVEC granting the license
• B. A printed copy of the certificate of successful completion of examination
• C. All these choices are correct
• D. The license appears in the FCC ULS database

T0C08

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

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

T1F04

31. What language may you use for identification when operating in a phone sub-band?

• A. Any language recognized by the United Nations
• B. Any language recognized by the ITU
• C. English, French, or Spanish
• D. English

T5D05

32. 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. 0.125 ohms
• D. 18 ohms

T3B01

33. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They revolve in opposite directions
• B. They travel at different speeds
• C. They are at right angles
• D. They are in parallel

T0A07

34. Where should a lightning arrester be installed in a coaxial feed line?

• A. On a grounded panel near where feed lines enter the building
• B. At the output connector of a transceiver
• C. At the antenna feed point
• D. At the ac power service panel

T7B03

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

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