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

2. - G0B08

What should be done before climbing a tower that supports electrically powered devices?

Select	Answer
A	Make sure all circuits that supply power to the tower are locked out and tagged
B	Notify the electric company that a person will be working on the tower
C	All these choices are correct
D	Unground the base of the tower

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

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 not permitted
C	They are limited to those expressly listed in Part 97 of the FCC rules
D	They may be used if they do not obscure the meaning of a message

5. - G1C06

What is the limit for transmitter power on the 1.8 MHz band?

Select	Answer
A	1000 watts PEP output
B	1200 watts PEP output
C	1500 watts PEP output
D	200 watts PEP output

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

7. - G1E07

In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?

Select	Answer
A	Channels 42 through 45
B	No part
C	Anywhere in the band
D	Channels 1 through 4

8. - G2A11

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

Select	Answer
A	Only contest stations
B	Any stations outside the lower 48 states
C	Only stations in Germany
D	Any caller is welcome to respond

9. - G2B11

How often may RACES training drills and tests be routinely conducted without special authorization?

Select	Answer
A	No more than 2 hours per month
B	No more than 1 hour per month
C	No more than 2 hours per week
D	No more than 1 hour per week

10. - G2C11

What does the Q signal “QRV” mean?

Select	Answer
A	You are sending too fast
B	There is interference on the frequency
C	I am ready to receive
D	I am quitting for the day

11. - G2D08

Why do many amateurs keep a station log?

Select	Answer
A	To help with a reply if the FCC requests information about your station
B	The log provides evidence of operation needed to renew a license without retest
C	The FCC requires a log of all international contacts
D	The FCC requires a log of all international third-party traffic

12. - G2E06

What is the most common frequency shift for RTTY emissions in the amateur HF bands?

Select	Answer
A	425 Hz
B	170 Hz
C	85 Hz
D	850 Hz

13. - G3A08

How can a geomagnetic storm affect HF propagation?

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

14. - G3B06

What usually happens to radio waves with frequencies below the LUF?

Select	Answer
A	They are refracted and trapped in the ionosphere to circle Earth
B	They pass through the ionosphere
C	They are attenuated before reaching the destination
D	They are refracted back to Earth

15. - G3C11

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

Select	Answer
A	The F1 region
B	The D region
C	The E region
D	The F2 region

16. - G4A05

Why is automatic level control (ALC) used with an RF power amplifier?

Select	Answer
A	To prevent excessive drive
B	To increase overall efficiency
C	To reduce harmonic radiation
D	To balance the transmitter audio frequency response

17. - G4B08

What transmitter performance parameter does a two-tone test analyze?

Select	Answer
A	Percentage of frequency modulation
B	Linearity
C	Percentage of suppression of the carrier and undesired sideband for SSB
D	Percentage of carrier phase shift

18. - G4C02

Which of the following could be a cause of interference covering a wide range of frequencies?

Select	Answer
A	Not using a balun or line isolator to feed balanced antennas
B	Using a balun to feed an unbalanced antenna
C	Arcing at a poor electrical connection
D	Lack of rectification of the transmitter’s signal in power conductors

19. - G4D04

What does an S meter measure?

Select	Answer
A	Received signal strength
B	Carrier suppression
C	Impedance
D	Transmitter power output

20. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	0.02 VDC
B	0.2 VDC
C	1.38 VDC
D	0.5 VDC

21. - G5A04

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

Select	Answer
A	Admittance
B	Reactance
C	Reluctance
D	Conductance

22. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

Select	Answer
A	The reciprocal of the RMS value
B	The peak value
C	The RMS value
D	The peak-to-peak value

23. - G5C10

What is the inductance of three 10-millihenry inductors connected in parallel?

Select	Answer
A	3.3 henries
B	0.30 henries
C	3.3 millihenries
D	30 millihenries

24. - G6A11

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

Select	Answer
A	Harmonics are generated
B	Its reactance increases
C	It becomes capacitive
D	Catastrophic failure is likely

25. - G6B08

How is an LED biased when emitting light?

Select	Answer
A	At the Zener voltage
B	In the tunnel-effect region
C	Forward biased
D	Reverse biased

26. - G7A05

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

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

27. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	16
B	6
C	3
D	8

28. - G7C04

How is a product detector used?

Select	Answer
A	Used in test gear to detect spurious mixing products
B	Used in an FM receiver to filter out unwanted sidebands
C	Used in a single sideband receiver to extract the modulated signal
D	Used in transmitter to perform frequency multiplication

29. - G8A09

What type of modulation is used by FT8?

Select	Answer
A	8-bit direct sequence spread spectrum
B	Vestigial sideband
C	Amplitude compressed AM
D	8-tone frequency shift keying

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 arithmetic product
C	The sum and difference
D	The ratio

31. - G8C03

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

Select	Answer
A	Preamble
B	Trailer
C	Directory
D	Header

32. - G9A02

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

Select	Answer
A	High SWR reduces the relative effect of transmission line loss
B	High SWR makes it difficult to measure transmission line loss
C	There is no relationship between transmission line loss and SWR
D	High SWR increases loss in a lossy transmission 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	Slope the radials downward
B	Lengthen the radials beyond one wavelength
C	Slope the radials upward
D	Coil the radials

34. - G9C08

What is meant by the “main lobe” of a directive antenna?

Select	Answer
A	The point of maximum current in a radiating antenna element
B	The maximum voltage standing wave point on a radiating element
C	The direction of maximum radiated field strength from the antenna
D	The magnitude of the maximum vertical angle of radiation

35. - G9D01

Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?

Select	Answer
A	A horizontal dipole placed at approximately 1/2 wavelength above the ground
B	A vertical antenna placed between 1/4 and 1/2 wavelength above the ground
C	A horizontal dipole placed between 1/10 and 1/4 wavelength above the ground
D	A vertical dipole placed at approximately 1/2 wavelength above the ground