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

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1. - G0A02

Which of the following is used to determine RF exposure from a transmitted signal?

SelectAnswer
AIts power density
BIts duty cycle
CAll these choices are correct
DIts frequency

2. - G0B11

Which of the following is required for lightning protection ground rods?

SelectAnswer
ALightning grounds must be connected to all ungrounded wiring
BThey must be bonded together with all other grounds
CBends in ground wires must be made as close as possible to a right angle
DThey must be bonded to all buried water and gas lines

3. - G1A11

When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is available to them?

SelectAnswer
AThe lower frequency portion
BThe upper frequency portion on frequencies below 7.3 MHz, and the lower portion on frequencies above 14.150 MHz
CThe lower frequency portion on frequencies below 7.3 MHz, and the upper portion on frequencies above 14.150 MHz
DThe upper frequency portion

4. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

SelectAnswer
AObservation of propagation and reception
BTransmission of bulletins of general interest to amateur radio licensees
CAll these choices are correct
DAutomatic identification of repeaters

5. - G1C03

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

SelectAnswer
A1.8 kHz
B3 kHz
C2.8 kHz
D5.6 kHz

6. - G1D08

Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?

SelectAnswer
AThe person must be a resident of the US for a minimum of 5 years
BThe person’s home citizenship must be in ITU region 2
CNone of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
DThe person must hold an FCC granted amateur radio license of General class or above

7. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

SelectAnswer
AThe interrogating transmission must be made by another automatically controlled station
BNo third-party traffic may be transmitted
CThe station initiating the contact must be under local or remote control
DThe control operator of the interrogating station must hold an Amateur Extra class license

8. - G2A11

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

SelectAnswer
AAny stations outside the lower 48 states
BOnly stations in Germany
CAny caller is welcome to respond
DOnly contest stations

9. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

SelectAnswer
AOnly a person holding an FCC-issued amateur operator license
BOnly a RACES net control operator
CA person holding an FCC-issued amateur operator license or an appropriate government official
DAny control operator when normal communication systems are operational

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D02

Which of the following are objectives of the Volunteer Monitor Program?

SelectAnswer
ATo encourage amateur radio operators to self-regulate and comply with the rules
BTo conduct efficient and orderly amateur licensing examinations
CTo coordinate repeaters for efficient and orderly spectrum usage
DTo provide emergency and public safety communications

12. - G2E11

What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?

SelectAnswer
ATo provide FM repeater coverage in remote areas
BTo provide real time propagation data by monitoring amateur radio transmissions worldwide
CTo provide DX spotting reports to aid contesters and DXers
DTo provide high-speed data services during an emergency or community event

13. - G3A11

How long does it take a coronal mass ejection to affect radio propagation on Earth?

SelectAnswer
A4 to 8 minutes
B15 hours to several days
C14 days
D28 days

14. - G3B05

How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?

SelectAnswer
AThey are amplified by interaction with the ionosphere
BThey are refracted and trapped in the ionosphere to circle Earth
CThey are refracted back to Earth
DThey pass through the ionosphere

15. - G3C09

What type of propagation allows signals to be heard in the transmitting station’s skip zone?

SelectAnswer
AShort-path
BChordal hop
CScatter
DFaraday rotation

16. - G4A02

What is the benefit of using the opposite or “reverse” sideband when receiving CW?

SelectAnswer
AInterference from impulse noise will be eliminated
BMore stations can be accommodated within a given signal passband
CAccidental out-of-band operation can be prevented
DIt may be possible to reduce or eliminate interference from other signals

17. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

SelectAnswer
AReceiver
BAll these choices are correct
CAntenna and feed line
DTransmitter

18. - G4C08

Which of the following would reduce RF interference caused by common-mode current on an audio cable?

SelectAnswer
AGround the center conductor of the audio cable causing the interference
BAdd an additional insulating jacket to the cable
CConnect the center conductor to the shield of all cables to short circuit the RFI signal
DPlace a ferrite choke on the cable

19. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

SelectAnswer
A14.3455 MHz to 14.3485 MHz
B14.344 MHz to 14.347 MHz
C14.347 MHz to 14.647 MHz
D14.347 MHz to 14.350 MHz

20. - G4E05

Which of the following most limits an HF mobile installation?

SelectAnswer
AEfficiency of the electrically short antenna
B“Picket fencing”
CThe wire gauge of the DC power line to the transceiver
DFCC rules limiting mobile output power on the 75-meter band

21. - G5A05

How does an inductor react to AC?

SelectAnswer
AAs the amplitude of the applied AC increases, the reactance increases
BAs the amplitude of the applied AC increases, the reactance decreases
CAs the frequency of the applied AC increases, the reactance decreases
DAs the frequency of the applied AC increases, the reactance increases

22. - G5B10

What percentage of power loss is equivalent to a loss of 1 dB?

SelectAnswer
A25.9 percent
B10.9 percent
C12.2 percent
D20.6 percent

23. - G5C04

What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

SelectAnswer
A300 ohms
B75 ohms
C150 ohms
D67 ohms

24. - G6A11

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

SelectAnswer
AIt becomes capacitive
BCatastrophic failure is likely
CHarmonics are generated
DIts reactance increases

25. - G6B07

Which of the following describes a type N connector?

SelectAnswer
AA nickel plated version of the PL-259
BA small bayonet connector used for data circuits
CA low noise figure VHF connector
DA moisture-resistant RF connector useful to 10 GHz

26. - G7A05

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

SelectAnswer
A180 degrees
B90 degrees
C270 degrees
D360 degrees

27. - G7B07

Which of the following are basic components of a sine wave oscillator?

SelectAnswer
AAn amplifier and a divider
BA circulator and a filter operating in a feed-forward loop
CA filter and an amplifier operating in a feedback loop
DA frequency multiplier and a mixer

28. - G7C12

What is the frequency above which a low-pass filter’s output power is less than half the input power?

SelectAnswer
ANeper frequency
BNotch frequency
CRolloff frequency
DCutoff frequency

29. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

SelectAnswer
AAmplitude modulation
BFrequency modulation
CPower modulation
DPhase modulation

30. - G8B02

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

SelectAnswer
AImage response
BQuadrature response
CMixer interference
DIntermediate interference

31. - G8C13

What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?

SelectAnswer
AInsufficient modulation
BLong path propagation
CBackscatter propagation
DOvermodulation

32. - G9A08

If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?

SelectAnswer
ABetween 1:1 and 5:1 depending on the characteristic impedance of the line
BBetween 1:1 and 5:1 depending on the reflected power at the transmitter
C5:1
D1:1

33. - G9B09

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

SelectAnswer
AShorter radials
BLower radiation resistance
CLower ground losses
DLower feed point impedance

34. - G9C12

Which of the following is a characteristic of using a gamma match with a Yagi antenna?

SelectAnswer
AAll these choices are correct
BIt is useful for matching multiband antennas
CIt does not require any inductors or capacitors
DIt does not require the driven element to be insulated from the boom

35. - G9D10

In which direction or directions does an electrically small loop (less than 1/10 wavelength in circumference) have nulls in its radiation pattern?

SelectAnswer
AElectrically small loops are omnidirectional
BIn the plane of the loop
CBroadside and in the plane of the loop
DBroadside to the loop