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

2. - G0B06

Which of the following is covered by the National Electrical Code?

Select	Answer
A	Electrical safety of the station
B	RF exposure limits of the human body
C	Acceptable modulation limits
D	Acceptable bandwidth limits

3. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	30 meters
B	17 meters
C	160 meters
D	12 meters

4. - G1B07

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

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

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	1200 baud
C	19.6 kilobaud
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	They must have a letter from the FCC showing they once held an amateur or commercial license
B	There are no requirements other than being able to show a copy of the expired license
C	The applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
D	Contact the FCC to have the license reinstated

7. - G1E05

What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?

Select	Answer
A	They must be for other licensed amateurs
B	They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
C	The message must be limited to no longer than 1 minute in duration and the name of the third party must be recorded in the station log
D	They must relate to emergencies or disaster relief

8. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

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

10. - G2C02

What should you do if a CW station sends “QRS?”

Select	Answer
A	Change frequency
B	Repeat everything twice
C	Increase your power
D	Send slower

11. - G2D09

Which of the following is required when participating in a contest on HF frequencies?

Select	Answer
A	All these choices are correct
B	Submit a log to the contest sponsor
C	Identify your station according to normal FCC regulations
D	Send a QSL card to the stations worked, or QSL via Logbook of The World

12. - G2E03

What symptoms may result from other signals interfering with a PACTOR or VARA transmission?

Select	Answer
A	Long pauses in message transmission
B	Frequent retries or timeouts
C	All these choices are correct
D	Failure to establish a connection between stations

13. - G3A06

What is a geomagnetic storm?

Select	Answer
A	Ripples in the geomagnetic force
B	A thunderstorm that affects radio propagation
C	A temporary disturbance in Earth’s geomagnetic field
D	A sudden drop in the solar flux index

14. - G3B12

Which of the following is typical of the lower HF frequencies during the summer?

Select	Answer
A	High levels of atmospheric noise or static
B	Heavy distortion on signals due to photon absorption
C	World-wide propagation during daylight hours
D	Poor propagation at any time of day

15. - G3C07

What makes HF scatter signals often sound distorted?

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

16. - G4A03

How does a noise blanker work?

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

17. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	The attenuated RF output of the transmitter
B	The transmitter balanced mixer output
C	An external RF oscillator
D	The local oscillator of the transmitter

18. - G4C09

How can the effects of ground loops be minimized?

Select	Answer
A	Avoid using lock washers and star washers when making ground connections
B	Bond equipment enclosures together
C	Connect all ground conductors in series
D	Connect the AC neutral conductor to the ground wire

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	14.347 MHz to 14.647 MHz
C	14.344 MHz to 14.347 MHz
D	14.347 MHz to 14.350 MHz

20. - G4E11

What precaution should be taken when connecting a solar panel to a lithium iron phosphate battery?

Select	Answer
A	The solar panel must have a charge controller
B	Ensure the battery is placed terminals-up
C	Ground the solar panel outer metal framework
D	A series resistor must be in place

21. - G5A01

What happens when inductive and capacitive reactance are equal in a series LC circuit?

Select	Answer
A	Impedance is equal to the arithmetic mean of the inductance and capacitance
B	Resonance causes impedance to be very high
C	Impedance is equal to the geometric mean of the inductance and capacitance
D	Resonance causes impedance to be very low

22. - G5B04

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	60 watts
B	6 watts
C	2.4 watts
D	24 watts

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

24. - G6A02

What is an advantage of batteries with low internal resistance?

Select	Answer
A	High discharge current
B	Long life
C	High voltage
D	Rapid recharge

25. - G6B08

How is an LED biased when emitting light?

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

26. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 4
B	Symbol 5
C	Symbol 1
D	Symbol 2

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	SSB
D	FM

28. - G7C01

What circuit is used to select one of the sidebands from a balanced modulator?

Select	Answer
A	RF amplifier
B	IF amplifier
C	Filter
D	Carrier oscillator

29. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Frequency modulation
B	Phase modulation
C	Single sideband
D	Vestigial sideband

30. - G8B01

Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?

Select	Answer
A	Image frequency
B	Beat frequency oscillator
C	Local oscillator
D	RF input

31. - G8C15

What does an FT8 signal report of +3 mean?

Select	Answer
A	The signal is S3 (weak signals)
B	The signal is 3 dB over S9
C	The signal-to-noise ratio is equivalent to +3dB in a 2.5 kHz bandwidth
D	The signal is 3 times the noise level of an equivalent SSB signal

32. - G9A09

What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?

Select	Answer
A	2:1
B	4:1
C	1:2
D	1:4

33. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	24 feet
B	8 feet
C	33 feet
D	16 feet

34. - G9C01

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

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

35. - G9D06

Which of the following is an advantage of a log-periodic antenna?

Select	Answer
A	Harmonic suppression
B	Polarization diversity
C	Wide bandwidth
D	Higher gain per element than a Yagi antenna

Figure G7-1