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	Post a copy of FCC Part 97.13 in the station
B	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
C	All these choices are correct
D	Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels

2. - G0B01

Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

Select	Answer
A	Only the ground wire
B	Only the neutral wire
C	All wires
D	Only the hot wires

3. - G1A10

What portion of the 10-meter band is available for repeater use?

Select	Answer
A	The portion between 28.1 MHz and 28.2 MHz
B	The portion between 28.3 MHz and 28.5 MHz
C	The portion above 29.5 MHz
D	The entire band

4. - G1B01

What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

Select	Answer
A	250 feet
B	50 feet
C	100 feet
D	200 feet

5. - G1C01

What is the maximum transmitter power an amateur station may use on 10.140 MHz?

Select	Answer
A	1000 watts PEP output
B	2000 watts PEP output
C	200 watts PEP output
D	1500 watts PEP output

6. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	30 days
B	365 days
C	180 days
D	For as long as your current license is valid

7. - G1E06

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

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

8. - G2A07

Which of the following statements is true of single sideband (SSB)?

Select	Answer
A	Only one sideband and the carrier are transmitted; the other sideband is suppressed
B	SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands
C	SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands
D	Only one sideband is transmitted; the other sideband and carrier are suppressed

9. - G2B01

Which of the following is true concerning access to frequencies?

Select	Answer
A	Except during emergencies, no amateur station has priority access to any frequency
B	Contest operations should yield to non-contest use of frequencies
C	QSOs in progress have priority
D	Nets have priority

10. - G2C04

What does the Q signal “QRL?” mean?

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

11. - G2D06

How is a directional antenna pointed when making a “long-path” contact with another station?

Select	Answer
A	Along the gray line
B	180 degrees from the station’s short-path heading
C	Toward the north
D	Toward the rising sun

12. - G2E12

Which of the following describes Winlink?

Select	Answer
A	An amateur radio wireless network to send and receive email on the internet
B	A form of Packet Radio
C	A wireless network capable of both VHF and HF band operation
D	All of the above

13. - G3A04

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

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

14. - G3B07

What does LUF stand for?

Select	Answer
A	Lowest Usable Frequency during the past 60 minutes
B	The Lowest Usable Frequency during a 24-hour period
C	The Lowest Usable Frequency for communications between two specific points
D	Lowest Usable Frequency for communications to any point outside a 100-mile radius

15. - G3C05

Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?

Select	Answer
A	The F region absorbs signals at these frequencies during daylight hours
B	The D region absorbs signals at these frequencies during daylight hours
C	The F region is unstable during daylight hours
D	The E region is unstable during daylight hours

16. - G4A02

What is the benefit of using the opposite or “reverse” sideband when receiving CW?

Select	Answer
A	More stations can be accommodated within a given signal passband
B	Interference from impulse noise will be eliminated
C	Accidental out-of-band operation can be prevented
D	It may be possible to reduce or eliminate interference from other signals

17. - G4B11

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

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

18. - G4C02

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

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

19. - G4D04

What does an S meter measure?

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

20. - G4E11

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

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

21. - G5A02

What is reactance?

Select	Answer
A	Opposition to the flow of direct current caused by resistance
B	Reinforcement of the flow of alternating current caused by capacitance or inductance
C	Reinforcement of the flow of direct current caused by resistance
D	Opposition to the flow of alternating current caused by capacitance or inductance

22. - G5B12

What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

Select	Answer
A	245 volts
B	173 volts
C	346 volts
D	692 volts

23. - G5C10

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

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

24. - G6A12

What is the primary purpose of a screen grid in a vacuum tube?

Select	Answer
A	To increase efficiency
B	To increase the control grid resistance
C	To decrease plate resistance
D	To reduce grid-to-plate capacitance

25. - G6B04

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

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

26. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 11
B	Symbol 1
C	Symbol 7
D	Symbol 2

27. - G7B06

What is a shift register?

Select	Answer
A	A digital mixer
B	A clocked array of circuits that passes data in steps along the array
C	An array of operational amplifiers used for tri-state arithmetic operations
D	An analog mixer

28. - G7C01

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

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

29. - G8A14

What is link margin?

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

30. - G8B11

What combination of a mixer’s Local Oscillator (LO) and RF input frequencies is found in the output?

Select	Answer
A	The arithmetic product
B	The average
C	The sum and difference
D	The ratio

31. - G8C13

What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?

Select	Answer
A	Backscatter propagation
B	Insufficient modulation
C	Long path propagation
D	Overmodulation

32. - G9A01

Which of the following factors determine the characteristic impedance of a parallel conductor feed line?

Select	Answer
A	The radius of the conductors and the frequency of the signal
B	The distance between the centers of the conductors and the radius of the conductors
C	The frequency of the signal and the length of the line
D	The distance between the centers of the conductors and the length of the 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	Coil the radials
C	Slope the radials upward
D	Lengthen the radials beyond one wavelength

34. - G9C12

Which of the following is a characteristic of using a gamma match with a Yagi antenna?

Select	Answer
A	It is useful for matching multiband antennas
B	All these choices are correct
C	It does not require the driven element to be insulated from the boom
D	It does not require any inductors or capacitors

35. - G9D09

What is the primary use of a Beverage antenna?

Select	Answer
A	Portable direction finding at higher HF frequencies
B	Directional transmitting for low HF bands
C	Portable direction finding at lower HF frequencies
D	Directional receiving for MF and low HF bands

Figure G7-1