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

2. - G0B07

Which of these choices should be observed when climbing a tower using a safety harness?

Select	Answer
A	Ensure that all heavy tools are securely fastened to the harness
B	All these choices are correct
C	Always hold on to the tower with one hand
D	Confirm that the harness is rated for the weight of the climber and that it is within its allowable service life

3. - G1A08

Which HF bands have segments exclusively allocated to Amateur Extra licensees?

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

4. - G1B05

Which of the following one-way transmissions are permitted?

Select	Answer
A	Unidentified test transmissions of less than 10 seconds in duration
B	Regular transmissions offering equipment for sale, if intended for amateur radio use
C	Transmissions to assist with learning the International Morse code
D	All these choices are correct

5. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

6. - G1D01

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

Select	Answer
A	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
B	Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago
C	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
D	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license

7. - G1E06

The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?

Select	Answer
A	Region 3
B	Region 4
C	Region 2
D	Region 1

8. - G2A12

What control is typically adjusted for proper ALC setting on a single sideband transceiver?

Select	Answer
A	RF clipping level
B	Transmit audio or microphone gain
C	Antenna inductance or capacitance
D	Attenuator level

9. - G2B06

How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Listen for 2 minutes before calling CQ
B	Send “QRL?” on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
C	Send the letter “V” in Morse code several times and listen for a response, or say “test” several times and listen for a response
D	Send “QSY” on CW or if using phone, announce “the frequency is in use,” then give your call sign and listen for a response

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows true bearings and distances from a specific location
B	A map that shows accurate land masses
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 the angle at which an amateur satellite crosses the equator

12. - G2E05

What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?

Select	Answer
A	LSB
B	SSB
C	DSB
D	USB

13. - G3A04

Which of the following are the least reliable bands for long-distance communications during periods of low solar activity?

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

14. - G3B04

Which of the following is a way to determine current propagation on a desired band from your station?

Select	Answer
A	All these choices are correct
B	Send a series of dots and listen for echoes
C	Use a network of automated receiving stations on the internet to see where your transmissions are being received
D	Check the A-index

15. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Propagation is via ground waves, which absorb most of the signal energy
B	Only a small part of the signal energy is scattered into the skip zone
C	Signals are scattered from the magnetosphere, which is not a good reflector
D	Propagation is via ducts in the F region, which absorb most of the energy

16. - G4A03

How does a noise blanker work?

Select	Answer
A	By redirecting noise pulses into a filter capacitor
B	By temporarily increasing received bandwidth
C	By clipping noise peaks
D	By reducing receiver gain during a noise pulse

17. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	Standing wave ratio
B	Antenna front-to-back ratio
C	RF interference
D	Radio wave propagation

18. - G4C02

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

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

19. - G4D11

How close to the upper edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide USB?

Select	Answer
A	At least 3 kHz above the edge of the band
B	At least 1 kHz above the edge of the segment
C	At least 1 kHz below the edge of the segment
D	At least 3 kHz below the edge of the band

20. - G4E06

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

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

21. - G5A05

How does an inductor react to AC?

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

22. - G5B06

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

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

23. - G5C09

What is the capacitance of three 100-microfarad capacitors connected in series?

Select	Answer
A	3.0 microfarads
B	0.33 microfarads
C	300 microfarads
D	33.3 microfarads

24. - G6A10

Which element of a vacuum tube regulates the flow of electrons between cathode and plate?

Select	Answer
A	Control grid
B	Screen grid
C	Suppressor grid
D	Trigger electrode

25. - G6B04

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

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

26. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 11
B	Symbol 7
C	Symbol 6
D	Symbol 1

27. - G7B05

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

Select	Answer
A	8
B	3
C	16
D	6

28. - G7C10

What is an advantage of using I-Q modulation with software-defined radios (SDRs)?

Select	Answer
A	The need for high resolution analog-to-digital converters is eliminated
B	Minimum detectible signal level is reduced
C	Automatic conversion of the signal from digital to analog
D	All types of modulation can be created with appropriate processing

29. - G8A14

What is link margin?

Select	Answer
A	Receiver sensitivity plus 3 dB
B	The difference between received power level and minimum required signal level at the input to the receiver
C	The opposite of fade margin
D	Transmit power minus receiver sensitivity

30. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	101.75 Hz
B	60 kHz
C	5 kHz
D	416.7 Hz

31. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Error correction is used to ensure accurate message reception
B	Upper case letters use longer Varicode bit sequences and thus slow down transmission
C	Higher power is needed as compared to RTTY for similar error rates
D	Upper case letters are sent with more power

32. - G9A05

How does the attenuation of coaxial cable change with increasing frequency?

Select	Answer
A	Attenuation increases
B	Attenuation decreases
C	Attenuation follows Marconi’s Law of Attenuation
D	Attenuation is independent of frequency

33. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	Parallel to the antenna element
B	On the surface or buried a few inches below the ground
C	As high as possible above the ground
D	At the center of the antenna

34. - G9C04

How does antenna gain in dBi compare to gain stated in dBd for the same antenna?

Select	Answer
A	Gain in dBi is 2.15 dB higher
B	Gain in dBi is 2.15 dB lower
C	Gain in dBd is 1.25 dBd lower
D	Gain in dBd is 1.25 dBd higher

35. - G9D04

What is the primary function of antenna traps?

Select	Answer
A	To notch spurious frequencies
B	To enable multiband operation
C	To provide balanced feed point impedance
D	To prevent out-of-band operation

Figure G7-1