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	By measurement of field strength using calibrated equipment
C	All these choices are correct
D	By calculation based on FCC OET Bulletin 65

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	Only the neutral wire
D	All wires

3. - G1A03

On which of the following bands is image transmission prohibited?

Select	Answer
A	30 meters
B	160 meters
C	20 meters
D	12 meters

4. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	The frequency must be posted on the internet or published in a national periodical
B	The frequency must be coordinated with the National Beacon Organization
C	All these choices are correct
D	No more than one beacon station may transmit in the same band from the same station location

5. - G1C09

What is the maximum power limit on the 60-meter band?

Select	Answer
A	ERP of 100 watts PEP with respect to an isotropic antenna
B	ERP of 100 watts PEP with respect to a dipole
C	1500 watts PEP
D	10 watts RMS

6. - G1D01

Who may receive partial credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
B	Any person who can demonstrate that they once held an FCC-issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
C	Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago
D	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license

7. - G1E04

Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	When operating within one mile of an FCC Monitoring Station
B	When using a band where the Amateur Service is secondary
C	All these choices are correct
D	When a station is transmitting spread spectrum emissions

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. - 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	1 kHz to 3 kHz
B	3 kHz to 6 kHz
C	5 Hz to 50 Hz
D	150 Hz to 500 Hz

10. - G2C07

When sending CW, what does a “C” mean when added to the RST report?

Select	Answer
A	Key clicks
B	Report was read from an S meter rather than estimated
C	Chirpy or unstable signal
D	100 percent copy

11. - G2D05

Which of the following indicates that you are looking for an HF contact with any station?

Select	Answer
A	Repeat “CQ” a few times, followed by “this is,” then your call sign a few times, then pause to listen, repeat as necessary
B	Sign your call sign once, followed by the words “listening for a call” -- if no answer, change frequency and repeat
C	Transmit an unmodulated carried for approximately 10 seconds, followed by “this is” and your call sign, and pause to listen -- repeat as necessary
D	Say “QTC” followed by “this is” and your call sign -- if no answer, change frequency and repeat

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 high-speed data services during an emergency or community event
C	To provide real time propagation data by monitoring amateur radio transmissions worldwide
D	To provide DX spotting reports to aid contesters and DXers

13. - G3A09

How can high geomagnetic activity benefit radio communications?

Select	Answer
A	Reduce long delayed echoes
B	Increases signal strength for HF signals passing through the polar regions
C	Creates auroras that can reflect VHF signals
D	Improve HF long path 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	2,500 miles
B	12,000 miles
C	1,200 miles
D	180 miles

15. - G3C10

What is near vertical incidence skywave (NVIS) propagation?

Select	Answer
A	Propagation near the MUF
B	Short distance MF or HF propagation at high elevation angles
C	Double hop propagation near the LUF
D	Long path HF propagation at sunrise and sunset

16. - G4A06

What is the purpose of an antenna tuner?

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

17. - G4B03

Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?

Select	Answer
A	A wavemeter
B	A sidetone monitor
C	An oscilloscope
D	A field strength meter

18. - G4C03

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

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

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

Select	Answer
A	All these choices are correct
B	Excessive background noise
C	Distorted speech
D	Excess intermodulation products

20. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

Select	Answer
A	Q of the antenna will be very low
B	Harmonic radiation may increase
C	Short antennas are more likely to cause distortion of transmitted signals
D	Operating bandwidth may be very limited

21. - G5A04

Which of the following is opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Reluctance
B	Reactance
C	Admittance
D	Conductance

22. - G5B02

How does the total current relate to the individual currents in a circuit of parallel resistors?

Select	Answer
A	It decreases as more parallel branches are added to the circuit
B	It is the sum of the reciprocal of each individual voltage drop
C	It equals the average of the branch currents
D	It equals the sum of the currents through each branch

23. - G5C02

What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

Select	Answer
A	The input voltage is multiplied by 4
B	Additional resistance must be added in series with the primary to prevent overload
C	The input voltage is divided by 4
D	Additional resistance must be added in parallel with the secondary to prevent overload

24. - G6A04

Which of the following is characteristic of an electrolytic capacitor?

Select	Answer
A	Much less leakage than any other type
B	High capacitance for a given volume
C	Tight tolerance
D	Inexpensive RF capacitor

25. - G6B01

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

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

26. - G7A03

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

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

27. - G7B01

What is the purpose of neutralizing an amplifier?

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

28. - G7C07

What term specifies a filter’s attenuation inside its passband?

Select	Answer
A	Insertion loss
B	Return loss
C	Ultimate rejection
D	Q

29. - G8A04

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

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

30. - G8B11

What combination of a mixer’s Local Oscillator (LO) and RF input frequencies is found in the output?

Select	Answer
A	The average
B	The ratio
C	The sum and difference
D	The arithmetic product

31. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	Dot and dash
B	Mark and space
C	High and low
D	On and off

32. - G9A11

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

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

33. - G9B03

Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?

Select	Answer
A	Bi-directional in azimuth
B	Isotropic
C	Hemispherical
D	Omnidirectional in azimuth

34. - G9C09

In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?

Select	Answer
A	Approximately 1.5 dB higher
B	Approximately 3 dB higher
C	Approximately 6 dB higher
D	Approximately 9 dB higher

35. - G9D07

Which of the following describes a log-periodic antenna?

Select	Answer
A	Impedance varies periodically as a function of frequency
B	SWR varies periodically as a function of boom length
C	Gain varies logarithmically as a function of frequency
D	Element length and spacing vary logarithmically along the boom