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. - G0A06

What must you do if your station fails to meet the FCC RF exposure exemption criteria?

Select	Answer
A	Perform an RF exposure evaluation in accordance with World Meteorological Organization guidelines
B	Contact the FCC for permission to transmit
C	Perform an RF Exposure Evaluation in accordance with FCC OET Bulletin 65
D	Use an FCC-approved band-pass filter

2. - G0B13

Where should lightning arrestors be located?

Select	Answer
A	In series with each ground lead
B	At the closest power pole ground electrode
C	Where the feed lines enter the building
D	On the antenna, opposite the feed point

3. - G1A10

What portion of the 10-meter band is available for repeater use?

Select	Answer
A	The portion above 29.5 MHz
B	The portion between 28.1 MHz and 28.2 MHz
C	The entire band
D	The portion between 28.3 MHz and 28.5 MHz

4. - G1B04

Which of the following transmissions is permitted for all amateur stations?

Select	Answer
A	Occasional retransmission of weather and propagation forecast information from US government stations
B	Unidentified transmissions of less than 10 seconds duration for test purposes only
C	Automatic retransmission of other amateur signals by any amateur station
D	Encrypted messages, if not intended to facilitate a criminal act

5. - G1C05

What is the limit for transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1500 watts PEP output
B	100 watts PEP output
C	1000 watts PEP output
D	2000 watts PEP output

6. - G1D02

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

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

7. - G1E08

What is the maximum PEP output allowed for spread spectrum transmissions?

Select	Answer
A	10 watts
B	1500 watts
C	100 watts
D	100 milliwatts

8. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Double sideband
B	Single sideband
C	Single phase modulation
D	Frequency modulation

9. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Select	Answer
A	Acknowledge the station in distress and determine what assistance may be needed
B	Immediately cease all transmissions
C	Inform your local emergency coordinator
D	Immediately decrease power to avoid interfering with the station in distress

10. - G2C11

What does the Q signal “QRV” mean?

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

11. - G2D01

What is the Volunteer Monitor Program?

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

12. - G2E07

Which of the following is required when using FT8?

Select	Answer
A	Receiver attenuator set to -12 dB
B	A special hardware modem
C	Computer time accurate to within approximately 1 second
D	A vertically polarized antenna

13. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	Only at the maximum point
B	Only at the minimum point
C	At any point
D	At the summer solstice

14. - G3B08

What does MUF stand for?

Select	Answer
A	The Minimum Usable Frequency for communications between two points
B	The Maximum Usable Frequency during a 24-hour period
C	The Maximum Usable Frequency for communications between two points
D	The Minimum Usable Frequency during a 24-hour period

15. - G3C11

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

Select	Answer
A	The F1 region
B	The E region
C	The F2 region
D	The D region

16. - G4A04

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

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

17. - G4B07

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

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

18. - G4C10

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

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

19. - G4D06

How much change in signal strength is typically represented by one S unit?

Select	Answer
A	18 dB
B	15 dB
C	12 dB
D	6 dB

20. - G4E08

In what configuration are the individual cells in a solar panel connected together?

Select	Answer
A	Full-wave bridge
B	Shunt
C	Bypass
D	Series-parallel

21. - G5A04

Which of the following is opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Reluctance
B	Reactance
C	Admittance
D	Conductance

22. - G5B05

How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?

Select	Answer
A	Approximately 61 milliwatts
B	Approximately 61 watts
C	Approximately 11 milliwatts
D	Approximately 11 watts

23. - G5C13

Which of the following components should be added to a capacitor to increase the capacitance?

Select	Answer
A	A capacitor in series
B	An inductor in series
C	A capacitor in parallel
D	An inductor in parallel

24. - G6A04

Which of the following is characteristic of an electrolytic capacitor?

Select	Answer
A	Inexpensive RF capacitor
B	Tight tolerance
C	High capacitance for a given volume
D	Much less leakage than any other type

25. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	MMIC
B	Analog
C	Programmable Logic
D	Digital

26. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

Select	Answer
A	A series of DC pulses at twice the frequency of the AC input
B	A series of DC pulses at the same frequency as the AC input
C	A steady DC voltage
D	A sine wave at half the frequency of the AC input

27. - G7B11

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

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

28. - G7C06

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

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

29. - G8A12

What is QPSK modulation?

Select	Answer
A	Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits
B	Modulation using quasi-parallel to serial conversion to reduce bandwidth
C	Modulation using quadra-pole sideband keying to generate spread spectrum signals
D	Modulation using Fast Fourier Transforms to generate frequencies at the first, second, third, and fourth harmonics of the carrier frequency to improve noise immunity

30. - G8B03

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

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

31. - G8C15

What does an FT8 signal report of +3 mean?

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

32. - G9A07

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

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

33. - G9B03

Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?

Select	Answer
A	Bi-directional in azimuth
B	Isotropic
C	Hemispherical
D	Omnidirectional in azimuth

34. - G9C10

Which of the following can be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth of a Yagi antenna?

Select	Answer
A	All these choices are correct
B	The spacing of each element along the boom
C	The physical length of the boom
D	The number of elements on the boom

35. - G9D06

Which of the following is an advantage of a log-periodic antenna?

Select	Answer
A	Higher gain per element than a Yagi antenna
B	Wide bandwidth
C	Harmonic suppression
D	Polarization diversity