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

2. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

Select	Answer
A	20 amperes
B	25 amperes
C	15 amperes
D	30 amperes

3. - G1A03

On which of the following bands is image transmission prohibited?

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

4. - G1B05

Which of the following one-way transmissions are permitted?

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

5. - G1C05

What is the limit for transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	100 watts PEP output
B	1000 watts PEP output
C	2000 watts PEP output
D	1500 watts PEP output

6. - G1D03

On which of the following band segments may you operate if you are a Technician class operator and have an unexpired Certificate of Successful Completion of Examination (CSCE) for General class privileges?

Select	Answer
A	Only the Technician band segments until your upgrade is posted in the FCC database
B	Only on the Technician band segments until you have a receipt for the FCC application fee payment
C	On any General or Technician class band segment
D	On any General or Technician class band segment except 30 meters and 60 meters

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B	The third party’s amateur license has been revoked and not reinstated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. - G2A02

Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?

Select	Answer
A	Lower sideband
B	Upper sideband
C	Double sideband
D	Suppressed sideband

9. - G2B10

Which of the following is good amateur practice for net management?

Select	Answer
A	Have a backup frequency in case of interference or poor conditions
B	Transmit the full net roster at the beginning of every session
C	All these choices are correct
D	Always use multiple sets of phonetics during check-in

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D01

What is the Volunteer Monitor Program?

Select	Answer
A	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
B	Amateur volunteers who conduct amateur licensing examinations
C	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
D	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters

12. - G2E08

In what segment of the 20-meter band are most digital mode operations commonly found?

Select	Answer
A	At the bottom of the slow-scan TV segment, near 14.230 MHz
B	At the top of the SSB phone segment, near 14.325 MHz
C	Between 14.070 MHz and 14.100 MHz
D	In the middle of the CW segment, near 14.100 MHz

13. - G3A09

How can high geomagnetic activity benefit radio communications?

Select	Answer
A	Increases signal strength for HF signals passing through the polar regions
B	Improve HF long path propagation
C	Reduce long delayed echoes
D	Creates auroras that can reflect VHF signals

14. - G3B03

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

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

15. - G3C09

What type of propagation allows signals to be heard in the transmitting station’s skip zone?

Select	Answer
A	Chordal hop
B	Faraday rotation
C	Scatter
D	Short-path

16. - G4A06

What is the purpose of an antenna tuner?

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

17. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	Antenna and feed line
B	Transmitter
C	Receiver
D	All these choices are correct

18. - G4C06

What is a possible effect of a resonant ground connection?

Select	Answer
A	Overheating of ground straps
B	A ground loop
C	Corrosion of the ground rod
D	High RF voltages on the enclosures of station equipment

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	14.344 MHz to 14.347 MHz
C	14.347 MHz to 14.647 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	A series resistor must be in place
B	The solar panel must have a charge controller
C	Ground the solar panel outer metal framework
D	Ensure the battery is placed terminals-up

21. - G5A08

What is impedance?

Select	Answer
A	The ratio of voltage to current
B	The product of current and reactance
C	The product of current and voltage
D	The ratio of current to voltage

22. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	8.5 volts
B	24 volts
C	34 volts
D	12 volts

23. - G5C06

What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?

Select	Answer
A	360 volts
B	25.5 volts
C	40 volts
D	120 volts

24. - G6A05

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

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

25. - G6B03

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

Select	Answer
A	High power handling capability
B	Low power consumption
C	Better suited for power supply regulation
D	Better suited for RF amplification

26. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 5
B	Symbol 1
C	Symbol 4
D	Symbol 11

27. - G7B10

Which of the following describes a linear amplifier?

Select	Answer
A	A Class C high efficiency amplifier
B	An amplifier used as a frequency multiplier
C	Any RF power amplifier used in conjunction with an amateur transceiver
D	An amplifier in which the output preserves the input waveform

28. - G7C01

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

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

29. - G8A14

What is link margin?

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

30. - G8B02

What is the term for interference from a signal at twice the IF frequency from the desired signal?

Select	Answer
A	Quadrature response
B	Image response
C	Mixer interference
D	Intermediate interference

31. - G8C07

Which of the following narrow-band digital modes can receive signals with very low signal-to-noise ratios?

Select	Answer
A	MSK144
B	MFSK32
C	AMTOR
D	FT8

32. - G9A08

If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?

Select	Answer
A	1:1
B	Between 1:1 and 5:1 depending on the characteristic impedance of the line
C	5:1
D	Between 1:1 and 5:1 depending on the reflected power at the transmitter

33. - G9B04

What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

Select	Answer
A	It has a pair of lobes on one side of the antenna and a single lobe on the other side
B	It is a figure-eight off both ends of the antenna
C	It is a circle (equal radiation in all directions)
D	It is a figure-eight at right angles to the antenna

34. - G9C02

What is the approximate length of the driven element of a Yagi antenna?

Select	Answer
A	3/4 wavelength
B	1/4 wavelength
C	1/2 wavelength
D	1 wavelength

35. - G9D02

What is the feed point impedance of an end-fed half-wave antenna?

Select	Answer
A	Approximately 300 ohms
B	Approximately 50 ohms
C	Very high
D	Very low

Figure G7-1