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. - G0A11

What precaution should be taken if you install an indoor transmitting antenna?

Select	Answer
A	Locate the antenna close to your operating position to minimize feed-line radiation
B	Make sure the antenna is properly shielded
C	Position the antenna along the edge of a wall to reduce parasitic radiation
D	Make sure that MPE limits are not exceeded in occupied areas

2. - G0B04

Where should the station’s lightning protection ground system be located?

Select	Answer
A	As close to the station equipment as possible
B	Parallel to the water supply line
C	Next to the closest power pole
D	Outside the building

3. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

Select	Answer
A	80 meters, 20 meters, 15 meters, and 10 meters
B	80 meters, 40 meters, 20 meters, and 15 meters
C	160 meters, 60 meters, 15 meters, and 12 meters
D	60 meters, 30 meters, 17 meters, and 12 meters

4. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the amateur service?

Select	Answer
A	Only “Q” signals are permitted
B	They are limited to those expressly listed in Part 97 of the FCC rules
C	They are not permitted
D	They may be used if they do not obscure the meaning of a message

5. - G1C08

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

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

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

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B	The third party’s amateur license has been revoked and not reinstated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

8. - G2A06

Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Ease of tuning on receive and immunity to impulse noise
B	Less subject to interference from atmospheric static crashes
C	Very high-fidelity voice modulation
D	Less bandwidth used and greater power efficiency

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

10. - G2C08

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

Select	Answer
A	KN
B	AR
C	SK
D	BK

11. - G2D02

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

Select	Answer
A	To coordinate repeaters for efficient and orderly spectrum usage
B	To provide emergency and public safety communications
C	To conduct efficient and orderly amateur licensing examinations
D	To encourage amateur radio operators to self-regulate and comply with the rules

12. - G2E15

Which of the following is a common location for FT8?

Select	Answer
A	Anywhere in the CW portion of the band
B	Approximately 14.074 MHz to 14.077 MHz
C	Anywhere in the voice portion of the band
D	Approximately 14.110 MHz to 14.113 MHz

13. - G3A10

What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?

Select	Answer
A	Rotation of the Sun’s surface layers around its axis
B	Cyclic variation in Earth’s radiation belts
C	The position of the Moon in its orbit
D	Long term oscillations in the upper atmosphere

14. - G3B03

Which frequency will have the least attenuation for long-distance skip propagation?

Select	Answer
A	Just above the LUF
B	Just above the critical frequency
C	Just below the critical frequency
D	Just below the MUF

15. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	The ionospheric region involved is unstable
B	The E region is not present
C	Energy is scattered into the skip zone through several different paths
D	Ground waves are absorbing much of the signal

16. - G4A13

What is the purpose of using a receive attenuator?

Select	Answer
A	To prevent receiver overload from strong incoming signals
B	To reduce excessive audio level on strong signals
C	To reduce the transmitter power when driving a linear amplifier
D	To reduce power consumption when operating from batteries

17. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	An oscilloscope uses less power
B	Complex impedances can be easily measured
C	Greater precision
D	Complex waveforms can be measured

18. - G4C10

What could be a symptom caused by a ground loop in your station’s audio connections?

Select	Answer
A	You receive reports of harmonic interference from your station
B	The SWR reading for one or more antennas is suddenly very high
C	An item of station equipment starts to draw excessive amounts of current
D	You receive reports of “hum” on your station’s transmitted 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	14.344 MHz to 14.347 MHz
B	14.347 MHz to 14.350 MHz
C	14.347 MHz to 14.647 MHz
D	14.3455 MHz to 14.3485 MHz

20. - G4E02

What is the purpose of a corona ball on an HF mobile antenna?

Select	Answer
A	To increase the “Q” of the antenna
B	To narrow the operating bandwidth of the antenna
C	To reduce the chance of damage if the antenna should strike an object
D	To reduce RF voltage discharge from the tip of the antenna while transmitting

21. - G5A05

How does an inductor react to AC?

Select	Answer
A	As the frequency of the applied AC increases, the reactance increases
B	As the frequency of the applied AC increases, the reactance decreases
C	As the amplitude of the applied AC increases, the reactance decreases
D	As the amplitude of the applied AC increases, the reactance increases

22. - G5B01

What dB change represents a factor of two increase or decrease in power?

Select	Answer
A	Approximately 9 dB
B	Approximately 2 dB
C	Approximately 3 dB
D	Approximately 6 dB

23. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

Select	Answer
A	A capacitor in parallel
B	A capacitor in series
C	An inductor in series
D	An inductor in parallel

24. - G6A05

What is the approximate forward threshold voltage of a silicon junction diode?

Select	Answer
A	0.1 volt
B	0.7 volts
C	1.0 volts
D	0.3 volts

25. - G6B04

What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors?

Select	Answer
A	50 MHz
B	40 GHz
C	4 GHz
D	500 MHz

26. - G7A06

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

Select	Answer
A	270 degrees
B	180 degrees
C	90 degrees
D	360 degrees

27. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	AM
B	All these choices are correct
C	FM
D	SSB

28. - G7C05

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

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

29. - G8A06

Which of the following is characteristic of QPSK31?

Select	Answer
A	It is sideband sensitive
B	Its encoding provides error correction
C	Its bandwidth is approximately the same as BPSK31
D	All these choices are correct

30. - G8B13

Which of the following is an odd-order intermodulation product of frequencies F1 and F2?

Select	Answer
A	2F1-F2
B	All these choices are correct
C	3F1-F2
D	5F1-3F2

31. - G8C16

Which of the following provide digital voice modes?

Select	Answer
A	DMR, D-STAR, and SystemFusion
B	WSPR, MFSK16, and EasyPAL
C	Winlink, PACTOR II, and PACTOR III
D	FT8, FT4, and FST4

32. - G9A07

What must be done to prevent standing waves on a feed line connected to an antenna?

Select	Answer
A	The antenna feed point impedance must be matched to the characteristic impedance of the feed line
B	The feed line must be an even number of physical half wavelengths long
C	The feed line must be an odd number of electrical quarter wavelengths long
D	The antenna feed point must be at DC ground potential

33. - G9B12

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

Select	Answer
A	8 feet
B	21 feet
C	11 feet
D	16 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	The spacing of each element along the boom
B	The physical length of the boom
C	All these choices are correct
D	The number of elements on the boom

35. - G9D05

What is an advantage of vertically stacking horizontally polarized Yagi antennas?

Select	Answer
A	It narrows the main lobe in azimuth
B	It allows simultaneous vertical and horizontal polarization
C	It narrows the main lobe in elevation
D	It allows quick selection of vertical or horizontal polarization