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. - G0A04

What does “time averaging” mean when evaluating RF radiation exposure?

Select	Answer
A	The average time it takes RF radiation to have any long-term effect on the body
B	The average amount of power developed by the transmitter over a specific 24-hour period
C	The total RF exposure averaged over a certain period
D	The total time of the exposure

2. - G0B01

Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

Select	Answer
A	Only the hot wires
B	Only the ground wire
C	All wires
D	Only the neutral wire

3. - G1A08

Which HF bands have segments exclusively allocated to Amateur Extra licensees?

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

4. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	200 watts PEP output
B	20 watts PEP output
C	100 watts PEP output
D	10 watts PEP output

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	2.8 kHz
B	1.8 kHz
C	5.6 kHz
D	3 kHz

6. - G1D10

What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?

Select	Answer
A	18 years
B	There is no age limit
C	16 years
D	21 years

7. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?

Select	Answer
A	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
B	Under no circumstances
C	Only if the 10-meter repeater control operator holds at least a General class license
D	Only during an FCC-declared general state of communications emergency

8. - G2A07

Which of the following statements is true of single sideband (SSB)?

Select	Answer
A	Only one sideband and the carrier are transmitted; the other sideband is suppressed
B	SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands
C	Only one sideband is transmitted; the other sideband and carrier are suppressed
D	SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands

9. - G2B04

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

Select	Answer
A	3 kHz to 6 kHz
B	150 Hz to 500 Hz
C	5 Hz to 50 Hz
D	1 kHz to 3 kHz

10. - G2C06

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

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

11. - G2D01

What is the Volunteer Monitor Program?

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

12. - G2E15

Which of the following is a common location for FT8?

Select	Answer
A	Anywhere in the CW portion of the band
B	Approximately 14.074 MHz to 14.077 MHz
C	Approximately 14.110 MHz to 14.113 MHz
D	Anywhere in the voice portion of the band

13. - G3A13

What does the A-index measure?

Select	Answer
A	The amount of polarization of the Sun’s electric field
B	The solar radio flux at Boulder, Colorado
C	The relative position of sunspots on the surface of the Sun
D	The long-term stability of Earth’s geomagnetic field

14. - G3B08

What does MUF stand for?

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

15. - G3C04

What does the term “critical angle” mean, as applied to radio wave propagation?

Select	Answer
A	The short path azimuth of a distant station
B	The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
C	The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
D	The long path azimuth of a distant station

16. - G4A06

What is the purpose of an antenna tuner?

Select	Answer
A	Reduce the power dissipation in the feedline to the antenna
B	Reduce the SWR in the feed line to the antenna
C	All these choices are correct
D	Increase power transfer from the transmitter to the feed line

17. - G4B05

Why do voltmeters have high input impedance?

Select	Answer
A	It improves the resolution of the readings
B	It allows for higher voltages to be safely measured
C	It decreases the loading on circuits being measured
D	It improves the frequency response

18. - G4C04

What sound is heard from an audio device experiencing RF interference from a CW transmitter?

Select	Answer
A	A CW signal at a nearly pure audio frequency
B	On-and-off humming or clicking
C	Severely distorted audio
D	A chirpy CW signal

19. - G4D11

How close to the upper edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide USB?

Select	Answer
A	At least 1 kHz above the edge of the segment
B	At least 3 kHz above the edge of the band
C	At least 3 kHz below the edge of the band
D	At least 1 kHz below the edge of the segment

20. - G4E08

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

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

21. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Siemens
B	Ampere
C	Farad
D	Ohm

22. - G5B01

What dB change represents a factor of two increase or decrease in power?

Select	Answer
A	Approximately 6 dB
B	Approximately 3 dB
C	Approximately 9 dB
D	Approximately 2 dB

23. - G5C08

What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

Select	Answer
A	1,733 picofarads
B	10.750 nanofarads
C	576.9 nanofarads
D	3,583 picofarads

24. - G6A08

Which of the following is characteristic of low voltage ceramic capacitors?

Select	Answer
A	Comparatively low cost
B	Tight tolerance
C	High stability
D	High capacitance for given volume

25. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Mode Modulated Integrated Circuit
B	Multi-Mode Integrated Circuit
C	Metal Monolayer Integrated Circuit
D	Monolithic Microwave Integrated Circuit

26. - G7A05

What portion of the AC cycle is converted to DC by a half-wave rectifier?

Select	Answer
A	270 degrees
B	90 degrees
C	180 degrees
D	360 degrees

27. - G7B01

What is the purpose of neutralizing an amplifier?

Select	Answer
A	To limit the modulation index
B	To keep the carrier on frequency
C	To cut off the final amplifier during standby periods
D	To eliminate self-oscillations

28. - G7C02

What output is produced by a balanced modulator?

Select	Answer
A	Audio with equalized frequency response
B	Double-sideband modulated RF
C	Frequency modulated RF
D	Audio extracted from the modulation signal

29. - G8A01

How is direct binary FSK modulation generated?

Select	Answer
A	By keying an FM transmitter with a sub-audible tone
B	By using a transceiver’s computer data interface protocol to change frequencies
C	By changing an oscillator’s frequency directly with a digital control signal
D	By reconfiguring the CW keying input to act as a tone generator

30. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	5 kHz
B	3 kHz
C	8 kHz
D	16 kHz

31. - G8C01

On what band do amateurs share channels with the unlicensed Wi-Fi service?

Select	Answer
A	10.7 GHz
B	2.4 GHz
C	432 MHz
D	902 MHz

32. - G9A03

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

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

33. - G9B04

What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

Select	Answer
A	It is a circle (equal radiation in all directions)
B	It is a figure-eight off both ends of the antenna
C	It is a figure-eight at right angles to the antenna
D	It has a pair of lobes on one side of the antenna and a single lobe on the other side

34. - G9C01

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

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

35. - G9D02

What is the feed point impedance of an end-fed half-wave antenna?

Select	Answer
A	Approximately 50 ohms
B	Very low
C	Approximately 300 ohms
D	Very high