Practice Exam

G9D09

1. What is the primary use of a Beverage antenna?

• A. Portable direction finding at higher HF frequencies
• B. Directional receiving for MF and low HF bands
• C. Directional transmitting for low HF bands
• D. Portable direction finding at lower HF frequencies

G7A06

2. What portion of the AC cycle is converted to DC by a full-wave rectifier?

• A. 90 degrees
• B. 270 degrees
• C. 180 degrees
• D. 360 degrees

G0B04

3. Where should the station's lightning protection ground system be located?

• A. Outside the building
• B. As close to the station equipment as possible
• C. Next to the closest power pole
• D. Parallel to the water supply line

G5A12

4. What occurs in an LC circuit at resonance?

• A. Current and voltage are equal
• B. The circuit radiates all its energy in the form of radio waves
• C. Inductive reactance and capacitive reactance cancel
• D. Resistance is cancelled

G2C04

5. What does the Q signal "QRL?" mean?

• A. "Are you busy?" or "Is this frequency in use?"
• B. "Are you listening only for a specific station?"
• C. "Will you keep the frequency clear?"
• D. "Are you operating full break-in?" or "Can you operate full break-in?"

G2D02

6. Which of the following are objectives of the Volunteer Monitor Program?

• A. To coordinate repeaters for efficient and orderly spectrum usage
• B. To provide emergency and public safety communications
• C. To encourage amateur radio operators to self-regulate and comply with the rules
• D. To conduct efficient and orderly amateur licensing examinations

G9C11

7. What is a beta or hairpin match?

• A. A section of 300-ohm twin-lead transmission line used to match a folded dipole antenna
• B. A series capacitor selected to cancel the inductive reactance of a folded dipole antenna
• C. A shorted transmission line stub placed at the feed point of a Yagi antenna to provide impedance matching
• D. A 1/4 wavelength section of 75-ohm coax in series with the feed point of a Yagi to provide impedance matching

G9B06

8. Where should the radial wires of a ground-mounted vertical antenna system be placed?

• A. On the surface or buried a few inches below the ground
• B. At the center of the antenna
• C. As high as possible above the ground
• D. Parallel to the antenna element

G4D02

9. How does a speech processor affect a single sideband phone signal?

• A. It increases average power
• B. It increases peak power
• C. It reduces harmonic distortion
• D. It reduces intermodulation distortion

G8C15

10. What does an FT8 signal report of +3 mean?

• A. The signal is S3 (weak signals)
• B. The signal-to-noise ratio is equivalent to +3dB in a 2.5 kHz bandwidth
• C. The signal is 3 times the noise level of an equivalent SSB signal
• D. The signal is 3 dB over S9

G3A02

11. What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?

• A. It enhances propagation on all HF frequencies
• B. None, because only areas on the night side of the Earth are affected
• C. It disrupts signals on lower frequencies more than those on higher frequencies
• D. It disrupts communications via satellite more than direct communications

G2E10

12. Which of the following is a way to establish contact with a digital messaging system gateway station?

• A. Respond when the station broadcasts its SSID
• B. Send QRL in Morse code
• C. Send an email to the system control operator
• D. Transmit a connect message on the station's published frequency

G2B04

13. When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

• A. 1 kHz to 3 kHz
• B. 150 Hz to 500 Hz
• C. 3 kHz to 6 kHz
• D. 5 Hz to 50 Hz

G1E03

14. What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

• A. No third-party traffic may be transmitted
• B. The station initiating the contact must be under local or remote control
• C. The control operator of the interrogating station must hold an Amateur Extra class license
• D. The interrogating transmission must be made by another automatically controlled station

G0A08

15. Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

• A. Post a copy of FCC Part 97.13 in the station
• B. All these choices are correct
• C. Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
• D. Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels

G7B07

16. Which of the following are basic components of a sine wave oscillator?

• A. An amplifier and a divider
• B. A frequency multiplier and a mixer
• C. A circulator and a filter operating in a feed-forward loop
• D. A filter and an amplifier operating in a feedback loop

G6B10

17. How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?

• A. It converts common-mode current to differential mode current
• B. By creating an impedance in the current's path
• C. Ferrites expel magnetic fields
• D. By creating an out-of-phase current to cancel the common-mode current

G1B09

18. On what HF frequencies are automatically controlled beacons permitted?

• A. 21.08 MHz to 21.09 MHz
• B. On any frequency if transmissions are in Morse code
• C. On any frequency if power is less than 1 watt
• D. 28.20 MHz to 28.30 MHz

G1D04

19. Who must observe the administration of a Technician class license examination?

• A. At least three Volunteer Examiners of Technician class
• B. At least two Volunteer Examiners of General class or higher
• C. At least three Volunteer Examiners of General class or higher
• D. At least two Volunteer Examiners of Technician class or higher

G3B12

20. Which of the following is typical of the lower HF frequencies during the summer?

• A. Heavy distortion on signals due to photon absorption
• B. Poor propagation at any time of day
• C. High levels of atmospheric noise or static
• D. World-wide propagation during daylight hours

G8B06

21. What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

• A. 8 kHz
• B. 5 kHz
• C. 16 kHz
• D. 3 kHz

G6A09

22. Which of the following describes MOSFET construction?

• A. The gate is separated from the channel by a thin insulating layer
• B. The source is separated from the drain by a thin insulating layer
• C. The gate is formed by a back-biased junction
• D. The source is formed by depositing metal on silicon

G4A04

23. What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier's TUNE control?

• A. A pronounced dip
• B. A slow, rhythmic oscillation
• C. No change will be observed
• D. A pronounced peak

G1C02

24. What is the maximum transmitter power an amateur station may use on the 12-meter band?

• A. An effective radiated power equivalent to 100 watts from a half-wave dipole
• B. 200 watts PEP output
• C. 50 watts PEP output
• D. 1500 watts PEP output

G7C06

25. Which of the following is an advantage of a digital signal processing (DSP) filter compared to an analog filter?

• A. Fewer digital components are required
• B. Mixing products are greatly reduced
• C. The DSP filter is much more effective at VHF frequencies
• D. A wide range of filter bandwidths and shapes can be created

G4E04

26. Why should DC power for a 100-watt HF transceiver not be supplied by a vehicle's auxiliary power socket?

• A. The socket is not wired with an RF-shielded power cable
• B. Drawing more than 50 watts from this socket could cause the engine to overheat
• C. The socket's wiring may be inadequate for the current drawn by the transceiver
• D. The DC polarity of the socket is reversed from the polarity of modern HF transceivers

G8A10

27. What is meant by the term "flat-topping," when referring to an amplitude-modulated phone signal?

• A. The transmitter's automatic level control (ALC) is properly adjusted
• B. Signal distortion caused by insufficient collector current
• C. The transmitter's carrier is properly suppressed
• D. Signal distortion caused by excessive drive or speech levels

G3C09

28. What type of propagation allows signals to be heard in the transmitting station's skip zone?

• A. Scatter
• B. Short-path
• C. Faraday rotation
• D. Chordal hop

G5B09

29. What is the RMS voltage of a sine wave with a value of 17 volts peak?

• A. 24 volts
• B. 34 volts
• C. 12 volts
• D. 8.5 volts

G5C04

30. What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

• A. 75 ohms
• B. 67 ohms
• C. 300 ohms
• D. 150 ohms

G4B07

31. What signals are used to conduct a two-tone test?

• A. Two audio signals of the same frequency shifted 90 degrees
• B. Two audio frequency range square wave signals of equal amplitude
• C. Two non-harmonically related audio signals
• D. Two swept frequency tones

G2A06

32. Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

• A. Ease of tuning on receive and immunity to impulse noise
• B. Less subject to interference from atmospheric static crashes
• C. Less bandwidth used and greater power efficiency
• D. Very high-fidelity voice modulation

G1A07

33. On which amateur frequencies in the 10-meter band may stations with a General class control operator transmit CW emissions?

• A. 28.000 MHz to 28.300 MHz only
• B. 28.000 MHz to 28.025 MHz only
• C. The entire band
• D. 28.025 MHz to 28.300 MHz only

G9A07

34. What must be done to prevent standing waves on a feed line connected to an antenna?

• A. The feed line must be an odd number of electrical quarter wavelengths long
• B. The antenna feed point must be at DC ground potential
• C. The antenna feed point impedance must be matched to the characteristic impedance of the feed line
• D. The feed line must be an even number of physical half wavelengths long

G4C09

35. How can the effects of ground loops be minimized?

• A. Connect the AC neutral conductor to the ground wire
• B. Connect all ground conductors in series
• C. Bond equipment enclosures together
• D. Avoid using lock washers and star washers when making ground connections