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	Use an FCC-approved band-pass filter
C	Perform an RF Exposure Evaluation in accordance with FCC OET Bulletin 65
D	Contact the FCC for permission to transmit

2. - G0B10

Which of the following is a danger from lead-tin solder?

Select	Answer
A	Lead can contaminate food if hands are not washed carefully after handling the solder
B	Tin in the solder can “cold flow,” causing shorts in the circuit
C	High voltages can cause lead-tin solder to disintegrate suddenly
D	RF energy can convert the lead into a poisonous gas

3. - G1A04

Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?

Select	Answer
A	60 meters
B	11 meters
C	30 meters
D	12 meters

4. - G1B08

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
B	Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country
C	Only when the foreign country has a formal third-party agreement filed with the FCC
D	Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country

5. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

Select	Answer
A	300 baud
B	1200 baud
C	56 kilobaud
D	19.6 kilobaud

6. - G1D11

What action is required to obtain a new General class license after a previously held license has expired and the two-year grace period has passed?

Select	Answer
A	They must have a letter from the FCC showing they once held an amateur or commercial license
B	There are no requirements other than being able to show a copy of the expired license
C	The applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
D	Contact the FCC to have the license reinstated

7. - G1E12

When may third-party messages be transmitted via remote control?

Select	Answer
A	Under any circumstances in which third party messages are permitted by FCC rules
B	Only when the message is intended for licensed radio amateurs
C	Under no circumstances except for emergencies
D	Only when the message is intended for third parties in areas where licensing is controlled by the FCC

8. - G2A11

Generally, who should respond to a station in the contiguous 48 states calling “CQ DX”?

Select	Answer
A	Any caller is welcome to respond
B	Only contest stations
C	Only stations in Germany
D	Any stations outside the lower 48 states

9. - G2B10

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

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

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D10

What is QRP operation?

Select	Answer
A	Remote piloted model control
B	Transmission using Quick Response Protocol
C	Traffic relay procedure net operation
D	Low-power transmit operation

12. - G2E08

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

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

13. - G3A06

What is a geomagnetic storm?

Select	Answer
A	Ripples in the geomagnetic force
B	A sudden drop in the solar flux index
C	A thunderstorm that affects radio propagation
D	A temporary disturbance in Earth’s geomagnetic field

14. - G3B01

What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?

Select	Answer
A	The signal might be cancelled causing severe attenuation
B	Periodic fading approximately every 10 seconds
C	A slightly delayed echo might be heard
D	Signal strength increased by 3 dB

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 D region
C	The F2 region
D	The E region

16. - G4A09

What is the purpose of delaying RF output after activating a transmitter’s keying line to an external amplifier?

Select	Answer
A	To prevent key clicks on CW
B	To prevent transient overmodulation
C	To allow time for the amplifier to switch the antenna between the transceiver and the amplifier output
D	To allow time for the amplifier power supply to reach operating level

17. - G4B08

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

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

18. - G4C02

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

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

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

20. - G4E10

Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	To prevent overload by regulating the charging voltage
B	To limit the current flowing from the panel to a safe value
C	To prevent discharge of the battery through the panel during times of low or no illumination
D	To prevent damage to the battery due to excessive voltage at high illumination levels

21. - G5A03

Which of the following is opposition to the flow of alternating current in an inductor?

Select	Answer
A	Reluctance
B	Reactance
C	Admittance
D	Conductance

22. - G5B04

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	2.4 watts
B	24 watts
C	60 watts
D	6 watts

23. - G5C12

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

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

24. - G6A10

Which element of a vacuum tube regulates the flow of electrons between cathode and plate?

Select	Answer
A	Suppressor grid
B	Trigger electrode
C	Control grid
D	Screen grid

25. - G6B11

What is an SMA connector?

Select	Answer
A	A small threaded connector suitable for signals up to several GHz
B	A type-S to type-M adaptor
C	A type of push-on connector intended for high-voltage applications
D	A connector designed for serial multiple access signals

26. - G7A03

Which type of rectifier circuit uses two diodes and a center-tapped transformer?

Select	Answer
A	Half-wave
B	Full-wave bridge
C	Synchronous
D	Full-wave

27. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	16
B	6
C	3
D	8

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	A wide range of filter bandwidths and shapes can be created
C	Mixing products are greatly reduced
D	The DSP filter is much more effective at VHF frequencies

29. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Phase modulation
B	Single sideband
C	Frequency modulation
D	Vestigial sideband

30. - G8B05

Which intermodulation products are closest to the original signal frequencies?

Select	Answer
A	Second harmonics
B	Intercept point
C	Odd-order
D	Even-order

31. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?

Select	Answer
A	The connection is dropped
B	Packets will be routed incorrectly
C	Encoding reverts to the default character set
D	The checksum overflows

32. - G9A03

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

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

33. - G9B12

What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?

Select	Answer
A	16 feet
B	11 feet
C	21 feet
D	8 feet

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 physical length of the boom
C	The spacing of each element along the boom
D	The number of elements on the boom

35. - G9D04

What is the primary function of antenna traps?

Select	Answer
A	To prevent out-of-band operation
B	To enable multiband operation
C	To notch spurious frequencies
D	To provide balanced feed point impedance