US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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US Amateur Radio - General (Element 3, 2023-2027) Practice Test

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1. - G0A08

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

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

2. - G0B04

Where should the station’s lightning protection ground system be located?

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

3. - G1A11

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?

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

4. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	The frequency must be coordinated with the National Beacon Organization
B	All these choices are correct
C	No more than one beacon station may transmit in the same band from the same station location
D	The frequency must be posted on the internet or published in a national periodical

5. - G1C06

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

Select	Answer
A	1500 watts PEP output
B	200 watts PEP output
C	1000 watts PEP output
D	1200 watts PEP output

6. - G1D08

Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?

Select	Answer
A	The person must be a resident of the US for a minimum of 5 years
B	None of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
C	The person’s home citizenship must be in ITU region 2
D	The person must hold an FCC granted amateur radio license of General class or above

7. - G1E04

Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	All these choices are correct
B	When a station is transmitting spread spectrum emissions
C	When using a band where the Amateur Service is secondary
D	When operating within one mile of an FCC Monitoring Station

8. - G2A04

Which mode is most commonly used for voice communications on the 17- and 12-meter bands?

Select	Answer
A	Double sideband
B	Lower sideband
C	Suppressed sideband
D	Upper sideband

9. - G2B10

Which of the following is good amateur practice for net management?

Select	Answer
A	Always use multiple sets of phonetics during check-in
B	Have a backup frequency in case of interference or poor conditions
C	Transmit the full net roster at the beginning of every session
D	All these choices are correct

10. - G2C06

What does the term “zero beat” mean in CW operation?

Select	Answer
A	Sending without error
B	Matching the speed of the transmitting station
C	Operating split to avoid interference on frequency
D	Matching the transmit frequency to the frequency of a received signal

11. - G2D07

Which of the following are examples of the NATO Phonetic Alphabet?

Select	Answer
A	Able, Baker, Charlie, Dog
B	Adam, Boy, Charles, David
C	America, Boston, Canada, Denmark
D	Alpha, Bravo, Charlie, Delta

12. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Send broadcast packets containing your call sign while in MONITOR mode
B	Joining an existing contact is not possible, PACTOR connections are limited to two stations
C	Send a NAK code
D	Transmit a steady carrier until the PACTOR protocol times out and disconnects

13. - G3A04

Which of the following are the least reliable bands for long-distance communications during periods of low solar activity?

Select	Answer
A	60 meters and 40 meters
B	80 meters and 160 meters
C	15 meters, 12 meters, and 10 meters
D	30 meters and 20 meters

14. - G3B02

What factors affect the MUF?

Select	Answer
A	Time of day and season
B	Solar radiation and ionospheric disturbances
C	All these choices are correct
D	Path distance and location

15. - G3C10

What is near vertical incidence skywave (NVIS) propagation?

Select	Answer
A	Propagation near the MUF
B	Long path HF propagation at sunrise and sunset
C	Double hop propagation near the LUF
D	Short distance MF or HF propagation at high elevation angles

16. - G4A02

What is the benefit of using the opposite or “reverse” sideband when receiving CW?

Select	Answer
A	More stations can be accommodated within a given signal passband
B	Interference from impulse noise will be eliminated
C	It may be possible to reduce or eliminate interference from other signals
D	Accidental out-of-band operation can be prevented

17. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	The local oscillator of the transmitter
B	An external RF oscillator
C	The attenuated RF output of the transmitter
D	The transmitter balanced mixer output

18. - G4C10

What could be a symptom caused by a ground loop in your station’s audio connections?

Select	Answer
A	An item of station equipment starts to draw excessive amounts of current
B	The SWR reading for one or more antennas is suddenly very high
C	You receive reports of “hum” on your station’s transmitted signal
D	You receive reports of harmonic interference from your station

19. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 10 times less powerful
B	It is 100 times more powerful
C	It is 20 times less powerful
D	It is 20 times more powerful

20. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	0.5 VDC
B	0.2 VDC
C	0.02 VDC
D	1.38 VDC

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Reluctance
B	Susceptance
C	Conductance
D	Admittance

22. - G5B09

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

Select	Answer
A	12 volts
B	8.5 volts
C	24 volts
D	34 volts

23. - G5C12

What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?

Select	Answer
A	1,000 microfarads
B	70 microfarads
C	14.3 microfarads
D	0.07 microfarads

24. - G6A05

What is the approximate forward threshold voltage of a silicon junction diode?

Select	Answer
A	0.3 volts
B	1.0 volts
C	0.7 volts
D	0.1 volt

25. - G6B12

Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?

Select	Answer
A	Type N
B	RCA Phono
C	PL-259
D	BNC

26. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 11
B	Symbol 4
C	Symbol 5
D	Symbol 1

27. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	FM
B	AM
C	SSB
D	All these choices are correct

28. - G7C05

Which of the following is characteristic of a direct digital synthesizer (DDS)?

Select	Answer
A	Relatively high-power output
B	Extremely narrow tuning range
C	Variable output frequency with the stability of a crystal oscillator
D	Pure sine wave output

29. - G8A09

What type of modulation is used by FT8?

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

30. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Higher symbol rates require wider bandwidth
B	Lower symbol rates require wider bandwidth
C	Bandwidth is half the symbol rate
D	Symbol rate and bandwidth are not related

31. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	Mark and space
B	Dot and dash
C	High and low
D	On and off

32. - G9A02

What is the relationship between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	High SWR makes it difficult to measure transmission line loss
B	There is no relationship between transmission line loss and SWR
C	High SWR reduces the relative effect of transmission line loss
D	High SWR increases loss in a lossy transmission line

33. - G9B05

How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?

Select	Answer
A	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
B	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
C	If the antenna is too high, the pattern becomes unpredictable
D	Antenna height has no effect on the pattern

34. - G9C09

In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?

Select	Answer
A	Approximately 3 dB higher
B	Approximately 1.5 dB higher
C	Approximately 6 dB higher
D	Approximately 9 dB higher

35. - G9D07

Which of the following describes a log-periodic antenna?

Select	Answer
A	SWR varies periodically as a function of boom length
B	Gain varies logarithmically as a function of frequency
C	Impedance varies periodically as a function of frequency
D	Element length and spacing vary logarithmically along the boom

Figure G7-1