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

Anonymous User

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

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	By calculation based on computer modeling
B	By calculation based on FCC OET Bulletin 65
C	All these choices are correct
D	By measurement of field strength using calibrated equipment

2. - G0B05

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

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

3. - G1A05

On which of the following frequencies are General class licensees prohibited from operating as control operator?

Select	Answer
A	21.275 MHz to 21.300 MHz
B	7.125 MHz to 7.175 MHz
C	28.000 MHz to 28.025 MHz
D	All these choices are correct

4. - G1B06

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

Select	Answer
A	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
B	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
C	Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure
D	Under no circumstances, FCC rules take priority

5. - G1C03

What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	3 kHz
B	5.6 kHz
C	1.8 kHz
D	2.8 kHz

6. - G1D02

What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?

Select	Answer
A	Technician only
B	General and Technician
C	Amateur Extra, General, and Technician
D	None, only Amateur Extra class licensees may be accredited

7. - G1E07

In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?

Select	Answer
A	No part
B	Channels 1 through 4
C	Channels 42 through 45
D	Anywhere in the band

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

9. - G2B06

How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Listen for 2 minutes before calling CQ
B	Send “QSY” on CW or if using phone, announce “the frequency is in use,” then give your call sign and listen for a response
C	Send “QRL?” on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
D	Send the letter “V” in Morse code several times and listen for a response, or say “test” several times and listen for a response

10. - G2C10

What does the Q signal “QRN” mean?

Select	Answer
A	Zero beat my signal
B	Send more slowly
C	Stop sending
D	I am troubled by static

11. - G2D07

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

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

12. - G2E08

In what segment of the 20-meter band are most digital mode operations commonly found?

Select	Answer
A	At the bottom of the slow-scan TV segment, near 14.230 MHz
B	At the top of the SSB phone segment, near 14.325 MHz
C	In the middle of the CW segment, near 14.100 MHz
D	Between 14.070 MHz and 14.100 MHz

13. - G3A10

What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?

Select	Answer
A	Cyclic variation in Earth’s radiation belts
B	The position of the Moon in its orbit
C	Rotation of the Sun’s surface layers around its axis
D	Long term oscillations in the upper atmosphere

14. - G3B02

What factors affect the MUF?

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

15. - G3C06

What is a characteristic of HF scatter?

Select	Answer
A	Signals have a fluttering sound
B	Scatter propagation occurs only at night
C	Phone signals have high intelligibility
D	There are very large, sudden swings in signal strength

16. - G4A05

Why is automatic level control (ALC) used with an RF power amplifier?

Select	Answer
A	To increase overall efficiency
B	To balance the transmitter audio frequency response
C	To prevent excessive drive
D	To reduce harmonic radiation

17. - G4B08

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

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

18. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Using a balun to feed an unbalanced antenna
B	Arcing at a poor electrical connection
C	Lack of rectification of the transmitter’s signal in power conductors
D	Not using a balun or line isolator to feed balanced antennas

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

20. - G4E05

Which of the following most limits an HF mobile installation?

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

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	24 volts
B	12 volts
C	8.5 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	14.3 microfarads
B	1,000 microfarads
C	70 microfarads
D	0.07 microfarads

24. - G6A11

What happens when an inductor is operated above its self-resonant frequency?

Select	Answer
A	Catastrophic failure is likely
B	Harmonics are generated
C	It becomes capacitive
D	Its reactance increases

25. - G6B07

Which of the following describes a type N connector?

Select	Answer
A	A low noise figure VHF connector
B	A small bayonet connector used for data circuits
C	A nickel plated version of the PL-259
D	A moisture-resistant RF connector useful to 10 GHz

26. - G7A10

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

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

27. - G7B08

How is the efficiency of an RF power amplifier determined?

Select	Answer
A	Multiply the RF input power by the reciprocal of the RF output power
B	Divide the RF output power by the DC input power
C	Add the RF input power to the DC output power
D	Divide the DC input power by the DC output power

28. - G7C08

Which parameter affects receiver sensitivity?

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

29. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	The carrier frequency that contains the signal
B	Spurious signals that envelop nearby frequencies
C	The waveform created by connecting the peak values of the modulated signal
D	The bandwidth of the modulated signal

30. - G8B02

What is the term for interference from a signal at twice the IF frequency from the desired signal?

Select	Answer
A	Intermediate interference
B	Image response
C	Quadrature response
D	Mixer interference

31. - G8C16

Which of the following provide digital voice modes?

Select	Answer
A	FT8, FT4, and FST4
B	WSPR, MFSK16, and EasyPAL
C	DMR, D-STAR, and SystemFusion
D	Winlink, PACTOR II, and PACTOR III

32. - G9A03

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

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

33. - G9B09

Which of the following is an advantage of using a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Lower ground losses
B	Lower feed point impedance
C	Lower radiation resistance
D	Shorter radials

34. - G9C08

What is meant by the “main lobe” of a directive antenna?

Select	Answer
A	The magnitude of the maximum vertical angle of radiation
B	The maximum voltage standing wave point on a radiating element
C	The direction of maximum radiated field strength from the antenna
D	The point of maximum current in a radiating antenna element

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