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

2. - G0B02

According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?

Select	Answer
A	AWG number 16
B	AWG number 12
C	AWG number 8
D	AWG number 20

3. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

Select	Answer
A	80 meters, 40 meters, 20 meters, and 15 meters
B	80 meters, 20 meters, 15 meters, and 10 meters
C	160 meters, 60 meters, 15 meters, and 12 meters
D	60 meters, 30 meters, 17 meters, and 12 meters

4. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Automatic identification of repeaters
B	Observation of propagation and reception
C	All these choices are correct
D	Transmission of bulletins of general interest to amateur radio licensees

5. - G1C01

What is the maximum transmitter power an amateur station may use on 10.140 MHz?

Select	Answer
A	1500 watts PEP output
B	2000 watts PEP output
C	200 watts PEP output
D	1000 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	None of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
B	The person must hold an FCC granted amateur radio license of General class or above
C	The person must be a resident of the US for a minimum of 5 years
D	The person’s home citizenship must be in ITU region 2

7. - G1E03

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

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

8. - G2A06

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

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

9. - G2B01

Which of the following is true concerning access to frequencies?

Select	Answer
A	Nets have priority
B	QSOs in progress have priority
C	Contest operations should yield to non-contest use of frequencies
D	Except during emergencies, no amateur station has priority access to any frequency

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D01

What is the Volunteer Monitor Program?

Select	Answer
A	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
B	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
C	Amateur volunteers who conduct amateur licensing examinations
D	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency

12. - G2E11

What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?

Select	Answer
A	To provide FM repeater coverage in remote areas
B	To provide real time propagation data by monitoring amateur radio transmissions worldwide
C	To provide DX spotting reports to aid contesters and DXers
D	To provide high-speed data services during an emergency or community event

13. - G3A14

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

Select	Answer
A	VHF/UHF ducting is improved
B	HF communication is improved
C	VHF/UHF ducting is disturbed
D	HF communication is disturbed

14. - G3B09

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

Select	Answer
A	12,000 miles
B	1,200 miles
C	180 miles
D	2,500 miles

15. - G3C10

What is near vertical incidence skywave (NVIS) propagation?

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

16. - G4A01

What is the purpose of the notch filter found on many HF transceivers?

Select	Answer
A	To restrict the transmitter voice bandwidth
B	To reduce interference from carriers in the receiver passband
C	To eliminate receiver interference from impulse noise sources
D	To remove interfering splatter generated by signals on adjacent frequencies

17. - G4B08

What transmitter performance parameter does a two-tone test analyze?

Select	Answer
A	Percentage of carrier phase shift
B	Linearity
C	Percentage of frequency modulation
D	Percentage of suppression of the carrier and undesired sideband for SSB

18. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency circuits?

Select	Answer
A	Reverse-biased diode
B	Bypass inductor
C	Forward-biased diode
D	Bypass capacitor

19. - G4D04

What does an S meter measure?

Select	Answer
A	Transmitter power output
B	Received signal strength
C	Carrier suppression
D	Impedance

20. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

Select	Answer
A	Q of the antenna will be very low
B	Operating bandwidth may be very limited
C	Harmonic radiation may increase
D	Short antennas are more likely to cause distortion of transmitted signals

21. - G5A07

What is the term for the inverse of impedance?

Select	Answer
A	Reluctance
B	Admittance
C	Susceptance
D	Conductance

22. - G5B11

What is the ratio of PEP to average power for an unmodulated carrier?

Select	Answer
A	0.707
B	2.00
C	1.00
D	1.414

23. - G5C10

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

Select	Answer
A	3.3 millihenries
B	30 millihenries
C	0.30 henries
D	3.3 henries

24. - G6A09

Which of the following describes MOSFET construction?

Select	Answer
A	The source is separated from the drain by a thin insulating layer
B	The gate is separated from the channel 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

25. - G6B04

What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors?

Select	Answer
A	40 GHz
B	4 GHz
C	50 MHz
D	500 MHz

26. - G7A10

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

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

27. - G7B07

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

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

28. - G7C09

What is the phase difference between the I and Q RF signals that software-defined radio (SDR) equipment uses for modulation and demodulation?

Select	Answer
A	180 degrees
B	Zero
C	45 degrees
D	90 degrees

29. - G8A14

What is link margin?

Select	Answer
A	Receiver sensitivity plus 3 dB
B	Transmit power minus receiver sensitivity
C	The opposite of fade margin
D	The difference between received power level and minimum required signal level at the input to the receiver

30. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Frequency inversion
B	Heterodyning
C	Phase inversion
D	Synthesizing

31. - G8C13

What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?

Select	Answer
A	Overmodulation
B	Backscatter propagation
C	Long path propagation
D	Insufficient modulation

32. - G9A03

What is the nominal characteristic impedance of “window line” transmission line?

Select	Answer
A	75 ohms
B	100 ohms
C	450 ohms
D	50 ohms

33. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	8 feet
B	33 feet
C	16 feet
D	24 feet

34. - G9C05

What is the primary effect of increasing boom length and adding directors to a Yagi antenna?

Select	Answer
A	Front-to-back ratio decreases
B	Beamwidth increases
C	Gain increases
D	Resonant frequency is lower

35. - G9D08

How does a “screwdriver” mobile antenna adjust its feed point impedance?

Select	Answer
A	By deploying a capacitance hat
B	By extending and retracting the whip
C	By varying the base loading inductance
D	By varying its body capacitance

Figure G7-1