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. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	By calculation based on computer modeling
B	All these choices are correct
C	By calculation based on FCC OET Bulletin 65
D	By measurement of field strength using calibrated equipment

2. - G0B05

Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

Select	Answer
A	Current flowing from one or more of the hot wires directly to ground
B	Current flowing from one or more of the hot wires to the neutral wire
C	Overvoltage on the hot wires
D	All these choices are correct

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?

Select	Answer
A	The upper frequency portion on frequencies below 7.3 MHz, and the lower portion on frequencies above 14.150 MHz
B	The lower frequency portion on frequencies below 7.3 MHz, and the upper portion on frequencies above 14.150 MHz
C	The upper frequency portion
D	The lower frequency portion

4. - G1B09

On what HF frequencies are automatically controlled beacons permitted?

Select	Answer
A	21.08 MHz to 21.09 MHz
B	On any frequency if power is less than 1 watt
C	28.20 MHz to 28.30 MHz
D	On any frequency if transmissions are in Morse code

5. - G1C08

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

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

7. - G1E01

Which of the following would disqualify a third party from participating in sending a message via an amateur station?

Select	Answer
A	The third party is not a US citizen
B	All these choices are correct
C	The third party is speaking in a language other than English
D	The third party’s amateur license has been revoked and not reinstated

8. - G2A03

Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?

Select	Answer
A	Lower sideband
B	Double sideband
C	Suppressed sideband
D	Upper sideband

9. - G2B09

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

Select	Answer
A	Any control operator when normal communication systems are operational
B	A person holding an FCC-issued amateur operator license or an appropriate government official
C	Only a RACES net control operator
D	Only a person holding an FCC-issued amateur operator license

10. - G2C01

Which of the following describes full break-in CW operation (QSK)?

Select	Answer
A	Automatic keyers, instead of hand keys, are used to send Morse code
B	An operator must activate a manual send/receive switch before and after every transmission
C	Breaking stations send the Morse code prosign “BK”
D	Transmitting stations can receive between code characters and elements

11. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows the angle at which an amateur satellite crosses the equator
B	A map that shows true bearings and distances from a specific location
C	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
D	A map that shows accurate land masses

12. - G2E13

What is another name for a Winlink Remote Message Server?

Select	Answer
A	RJ-45
B	Gateway
C	Terminal Node Controller
D	Printer/Server

13. - G3A08

How can a geomagnetic storm affect HF propagation?

Select	Answer
A	Degrade ground wave propagation
B	Degrade high-latitude HF propagation
C	Improve high-latitude HF propagation
D	Improve ground wave propagation

14. - G3B09

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?

Select	Answer
A	12,000 miles
B	2,500 miles
C	1,200 miles
D	180 miles

15. - G3C03

Why is skip propagation via the F2 region longer than that via the other ionospheric regions?

Select	Answer
A	Because it is the densest
B	Because of the Doppler effect
C	Because it is the highest
D	Because of temperature inversions

16. - G4A07

What happens as a receiver’s noise reduction control level is increased?

Select	Answer
A	Received signals may become distorted
B	Received frequency may become unstable
C	CW signals may become severely attenuated
D	Received frequency may shift several kHz

17. - G4B06

What is an advantage of a digital multimeter as compared to an analog multimeter?

Select	Answer
A	Faster response
B	Higher precision
C	Less prone to overload
D	Better for measuring computer circuits

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. - G4D09

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

Select	Answer
A	14.3455 MHz to 14.3485 MHz
B	14.344 MHz to 14.347 MHz
C	14.347 MHz to 14.647 MHz
D	14.347 MHz to 14.350 MHz

20. - G4E04

Why should DC power for a 100-watt HF transceiver not be supplied by a vehicle’s auxiliary power socket?

Select	Answer
A	The socket’s wiring may be inadequate for the current drawn by the transceiver
B	The socket is not wired with an RF-shielded power cable
C	The DC polarity of the socket is reversed from the polarity of modern HF transceivers
D	Drawing more than 50 watts from this socket could cause the engine to overheat

21. - G5A12

What occurs in an LC circuit at resonance?

Select	Answer
A	Inductive reactance and capacitive reactance cancel
B	Resistance is cancelled
C	Current and voltage are equal
D	The circuit radiates all its energy in the form of radio waves

22. - G5B06

What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?

Select	Answer
A	353.5 watts
B	400 watts
C	1.4 watts
D	100 watts

23. - G5C03

What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?

Select	Answer
A	0.17 ohms
B	80 ohms
C	17 ohms
D	5.9 ohms

24. - G6A06

Why should wire-wound resistors not be used in RF circuits?

Select	Answer
A	The resistor’s internal capacitance would detune the circuit
B	The resistor’s inductance could make circuit performance unpredictable
C	The resistor’s tolerance value would not be adequate
D	The resistor could overheat

25. - G6B02

What is meant by the term MMIC?

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

26. - G7A08

Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	Inherently more stable
B	Faster switching time makes higher output voltage possible
C	High-frequency operation allows the use of smaller components
D	Fewer circuit components are required

27. - G7B03

Which of the following describes the function of a two-input AND gate?

Select	Answer
A	Output is high only when both inputs are high
B	Output is low when either or both inputs are high
C	Output is high when either or both inputs are low
D	Output is low only when both inputs are high

28. - G7C05

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

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

29. - G8A04

What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

Select	Answer
A	Pulse modulation
B	Multiplex modulation
C	Phase modulation
D	Amplitude modulation

30. - G8B06

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

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

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?

Select	Answer
A	Insufficient modulation
B	Overmodulation
C	Long path propagation
D	Backscatter propagation

32. - G9A02

What is the relationship between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	There is no relationship between transmission line loss and SWR
B	High SWR reduces the relative effect of transmission line loss
C	High SWR increases loss in a lossy transmission line
D	High SWR makes it difficult to measure transmission line loss

33. - G9B01

What is a characteristic of a random-wire HF antenna connected directly to the transmitter?

Select	Answer
A	It is more effective on the lower HF bands than on the higher bands
B	It must be longer than 1 wavelength
C	Station equipment may carry significant RF current
D	It produces only vertically polarized radiation

34. - G9C01

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

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

35. - G9D03

In which direction is the maximum radiation from a VHF/UHF “halo” antenna?

Select	Answer
A	Opposite the feed point
B	Broadside to the plane of the halo
C	On the same side as the feed point
D	Omnidirectional in the plane of the halo