Practice Exam

G6A01

1. What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?

• A. 12 volts
• B. 10.5 volts
• C. 6 volts
• D. 8.5 volts

G1C06

2. What is the limit for transmitter power on the 1.8 MHz band?

• A. 1000 watts PEP output
• B. 1200 watts PEP output
• C. 1500 watts PEP output
• D. 200 watts PEP output

G1A11

3. When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is available to them?

• A. The upper frequency portion
• B. The upper frequency portion on frequencies below 7.3 MHz, and the lower portion on frequencies above 14.150 MHz
• C. The lower frequency portion on frequencies below 7.3 MHz, and the upper portion on frequencies above 14.150 MHz
• D. The lower frequency portion

G0B05

4. Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

• A. Overvoltage on the hot wires
• B. Current flowing from one or more of the hot wires directly to ground
• C. Current flowing from one or more of the hot wires to the neutral wire
• D. All these choices are correct

G8B09

5. Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

• A. It improves impedance matching of the antenna
• B. It minimizes power consumption in the receiver
• C. It is required by FCC rules
• D. It results in the best signal-to-noise ratio

G0A10

6. What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?

• A. Change to a non-polarized antenna with higher gain
• B. Take precautions to ensure that the antenna cannot be pointed in their direction when they are present
• C. All these choices are correct
• D. Use an antenna with a higher front-to-back ratio

G4C08

7. Which of the following would reduce RF interference caused by common-mode current on an audio cable?

• A. Add an additional insulating jacket to the cable
• B. Connect the center conductor to the shield of all cables to short circuit the RFI signal
• C. Place a ferrite choke on the cable
• D. Ground the center conductor of the audio cable causing the interference

G4E05

8. Which of the following most limits an HF mobile installation?

• A. The wire gauge of the DC power line to the transceiver
• B. "Picket fencing"
• C. Efficiency of the electrically short antenna
• D. FCC rules limiting mobile output power on the 75-meter band

G9B08

9. How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

• A. It steadily increases
• B. It steadily decreases
• C. It is unaffected by the location of the feed point
• D. It peaks at about 1/8 wavelength from the end

G4A10

10. What is the function of an electronic keyer?

• A. To allow time for switching the antenna from the receiver to the transmitter
• B. Automatic generation of dots and dashes for CW operation
• C. Computer interface for PSK and RTTY operation
• D. Automatic transmit/receive switching

G7C08

11. Which parameter affects receiver sensitivity?

• A. Input amplifier gain
• B. Input amplifier noise figure
• C. Demodulator stage bandwidth
• D. All these choices are correct

G9C01

12. Which of the following would increase the bandwidth of a Yagi antenna?

• A. Loading coils in series with the element
• B. Closer element spacing
• C. Larger-diameter elements
• D. Tapered-diameter elements

G8A09

13. What type of modulation is used by FT8?

• A. Vestigial sideband
• B. 8-bit direct sequence spread spectrum
• C. Amplitude compressed AM
• D. 8-tone frequency shift keying

G3C07

14. What makes HF scatter signals often sound distorted?

• A. The E region is not present
• B. Ground waves are absorbing much of the signal
• C. Energy is scattered into the skip zone through several different paths
• D. The ionospheric region involved is unstable

G2A10

15. Which of the following statements is true of VOX operation versus PTT operation?

• A. The received signal is more natural sounding
• B. It provides more power output
• C. It occupies less bandwidth
• D. It allows "hands free" operation

G5C10

16. What is the inductance of three 10-millihenry inductors connected in parallel?

• A. 3.3 millihenries
• B. 30 millihenries
• C. 0.30 henries
• D. 3.3 henries

G2D09

17. Which of the following is required when participating in a contest on HF frequencies?

• A. Identify your station according to normal FCC regulations
• B. All these choices are correct
• C. Submit a log to the contest sponsor
• D. Send a QSL card to the stations worked, or QSL via Logbook of The World

G3B09

18. What is the approximate maximum distance along the Earth's surface normally covered in one hop using the F2 region?

• A. 2,500 miles
• B. 12,000 miles
• C. 1,200 miles
• D. 180 miles

G8C15

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

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

G6B02

20. What is meant by the term MMIC?

• A. Mode Modulated Integrated Circuit
• B. Monolithic Microwave Integrated Circuit
• C. Multi-Mode Integrated Circuit
• D. Metal Monolayer Integrated Circuit

G3A14

21. How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?

• A. VHF/UHF ducting is improved
• B. HF communication is improved
• C. HF communication is disturbed
• D. VHF/UHF ducting is disturbed

G7B03

22. Which of the following describes the function of a two-input AND gate?

• A. Output is low when either or both inputs are high
• B. Output is low only when both inputs are high
• C. Output is high only when both inputs are high
• D. Output is high when either or both inputs are low

G1D05

23. When operating a US station by remote control from outside the country, what license is required of the control operator?

• A. A US operator/primary station license
• B. Only an appropriate US operator/primary license and a special remote station permit from the FCC
• C. Only a license from the foreign country, as long as the call sign includes identification of portable operation in the US
• D. A license from the foreign country and a special remote station permit from the FCC

G9D12

24. What is the common name of a dipole with a single central support?

• A. Sloper
• B. Lazy H
• C. Inverted V
• D. Inverted L

G1E06

25. The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?

• A. Region 2
• B. Region 4
• C. Region 3
• D. Region 1

G2B04

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

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

G5B06

27. What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?

• A. 353.5 watts
• B. 400 watts
• C. 100 watts
• D. 1.4 watts

G2C11

28. What does the Q signal "QRV" mean?

• A. I am ready to receive
• B. There is interference on the frequency
• C. I am quitting for the day
• D. You are sending too fast

G1B06

29. Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?

• A. At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC
• B. Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure
• C. Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity
• D. Under no circumstances, FCC rules take priority

G4B02

30. Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

• A. Complex impedances can be easily measured
• B. Greater precision
• C. Complex waveforms can be measured
• D. An oscilloscope uses less power

G5A07

31. What is the term for the inverse of impedance?

• A. Conductance
• B. Reluctance
• C. Admittance
• D. Susceptance

G7A08

32. Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?

• A. Faster switching time makes higher output voltage possible
• B. High-frequency operation allows the use of smaller components
• C. Fewer circuit components are required
• D. Inherently more stable

G2E04

33. Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?

• A. Find a clear frequency during the alternate time slot to the calling station
• B. Always call on the station's frequency
• C. Find a clear frequency during the same time slot as the calling station
• D. Call on any frequency in the waterfall except the station's frequency

G4D02

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

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

G9A05

35. How does the attenuation of coaxial cable change with increasing frequency?

• A. Attenuation is independent of frequency
• B. Attenuation decreases
• C. Attenuation follows Marconi's Law of Attenuation
• D. Attenuation increases