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	All these choices are correct
C	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
D	Post a copy of FCC Part 97.13 in the station

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 directly to ground
C	Overvoltage on the hot wires
D	Current flowing from one or more of the hot wires to the neutral wire

3. - G1A05

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

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

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	Only when the foreign country has a formal third-party agreement filed with the FCC
B	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
C	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
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. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

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	None, only Amateur Extra class licensees may be accredited
D	Amateur Extra, General, and Technician

7. - G1E05

What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?

Select	Answer
A	They must be for other licensed amateurs
B	They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
C	They must relate to emergencies or disaster relief
D	The message must be limited to no longer than 1 minute in duration and the name of the third party must be recorded in the station log

8. - G2A05

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

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

9. - G2B03

What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?

Select	Answer
A	Decrease power and continue to transmit
B	Switch to the opposite sideband
C	Advise the interfering stations that you are on the frequency and that you have priority
D	Attempt to resolve the interference problem with the other stations in a mutually acceptable manner

10. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

Select	Answer
A	AR
B	SK
C	BK
D	KN

11. - G2D01

What is the Volunteer Monitor Program?

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

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 high-speed data services during an emergency or community event
D	To provide DX spotting reports to aid contesters and DXers

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 disturbed
C	VHF/UHF ducting is disturbed
D	HF communication is improved

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	A slightly delayed echo might be heard
C	Periodic fading approximately every 10 seconds
D	Signal strength increased by 3 dB

15. - G3C01

Which ionospheric region is closest to the surface of Earth?

Select	Answer
A	The F2 region
B	The F1 region
C	The E region
D	The D 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 allow time for the amplifier to switch the antenna between the transceiver and the amplifier output
B	To prevent key clicks on CW
C	To prevent transient overmodulation
D	To allow time for the amplifier power supply to reach operating level

17. - G4B05

Why do voltmeters have high input impedance?

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

18. - G4C03

What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?

Select	Answer
A	Clearly audible speech
B	On-and-off humming or clicking
C	A steady hum whenever the transmitter is on the air
D	Distorted speech

19. - G4D01

What is the purpose of a speech processor in a transceiver?

Select	Answer
A	Increase the apparent loudness of transmitted voice signals
B	Prevent distortion of voice signals
C	Decrease high-frequency voice output to prevent out-of-band operation
D	Increase transmitter bass response for more natural-sounding SSB signals

20. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To increase the power handling capacity of a whip antenna
B	To lower the radiation angle
C	To reduce radiation resistance
D	To electrically lengthen a physically short antenna

21. - G5A03

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

Select	Answer
A	Admittance
B	Reluctance
C	Conductance
D	Reactance

22. - G5B11

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

Select	Answer
A	1.414
B	1.00
C	2.00
D	0.707

23. - G5C07

What transformer turns ratio matches an antenna’s 600-ohm feed point impedance to a 50-ohm coaxial cable?

Select	Answer
A	3.5 to 1
B	24 to 1
C	12 to 1
D	144 to 1

24. - G6A02

What is an advantage of batteries with low internal resistance?

Select	Answer
A	Long life
B	High voltage
C	Rapid recharge
D	High discharge current

25. - G6B01

What determines the performance of a ferrite core at different frequencies?

Select	Answer
A	Its conductivity
B	The ratio of outer diameter to inner diameter
C	The composition, or “mix,” of materials used
D	Its thickness

26. - G7A12

Which symbol in Figure G7-1 represents a solid core transformer?

Select	Answer
A	Symbol 1
B	Symbol 6
C	Symbol 7
D	Symbol 4

27. - G7B01

What is the purpose of neutralizing an amplifier?

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

28. - G7C05

Which of the following is characteristic of a direct digital synthesizer (DDS)?

Select	Answer
A	Pure sine wave output
B	Extremely narrow tuning range
C	Relatively high-power output
D	Variable output frequency with the stability of a crystal oscillator

29. - G8A02

What is the name of the process that changes the phase angle of an RF signal to convey information?

Select	Answer
A	Phase transformation
B	Phase inversion
C	Phase modulation
D	Phase convolution

30. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	To aid in tuning your transmitter
B	Some modes have high duty cycles that could exceed the transmitter’s average power rating
C	To allow time for the other station to break in during a transmission
D	To prevent overmodulation

31. - G8C03

What part of a packet radio frame contains the routing and handling information?

Select	Answer
A	Trailer
B	Header
C	Directory
D	Preamble

32. - G9A11

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	Transmission line loss does not affect the SWR measurement
B	Higher loss increases SWR measured at the input to the line
C	Higher loss increases the accuracy of SWR measured at the input to the line
D	Higher loss reduces SWR measured at the input to the line

33. - G9B02

Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Lengthen the radials beyond one wavelength
B	Slope the radials downward
C	Slope the radials upward
D	Coil the radials

34. - G9C03

How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?

Select	Answer
A	The reflector is longer, and the director is shorter
B	Relative length depends on the frequency of operation
C	They are all the same length
D	The reflector is shorter, and the director is longer

35. - G9D12

What is the common name of a dipole with a single central support?

Select	Answer
A	Lazy H
B	Inverted V
C	Inverted L
D	Sloper

Figure G7-1