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

2. - G0B04

Where should the station’s lightning protection ground system be located?

Select	Answer
A	Next to the closest power pole
B	As close to the station equipment as possible
C	Parallel to the water supply line
D	Outside the building

3. - G1A05

On which of the following frequencies are General class licensees prohibited from operating as control operator?

Select	Answer
A	28.000 MHz to 28.025 MHz
B	All these choices are correct
C	7.125 MHz to 7.175 MHz
D	21.275 MHz to 21.300 MHz

4. - G1B09

On what HF frequencies are automatically controlled beacons permitted?

Select	Answer
A	21.08 MHz to 21.09 MHz
B	28.20 MHz to 28.30 MHz
C	On any frequency if power is less than 1 watt
D	On any frequency if transmissions are in Morse code

5. - G1C10

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

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

6. - G1D04

Who must observe the administration of a Technician class license examination?

Select	Answer
A	At least two Volunteer Examiners of Technician class or higher
B	At least two Volunteer Examiners of General class or higher
C	At least three Volunteer Examiners of Technician class
D	At least three Volunteer Examiners of General class or higher

7. - G1E08

What is the maximum PEP output allowed for spread spectrum transmissions?

Select	Answer
A	1500 watts
B	100 milliwatts
C	100 watts
D	10 watts

8. - G2A10

Which of the following statements is true of VOX operation versus PTT operation?

Select	Answer
A	It allows “hands free” operation
B	The received signal is more natural sounding
C	It provides more power output
D	It occupies less bandwidth

9. - G2B05

When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	Approximately 6 kHz
B	150 Hz to 500 Hz
C	5 Hz to 50 Hz
D	2 kHz to 3 kHz

10. - G2C01

Which of the following describes full break-in CW operation (QSK)?

Select	Answer
A	Automatic keyers, instead of hand keys, are used to send Morse code
B	Transmitting stations can receive between code characters and elements
C	Breaking stations send the Morse code prosign “BK”
D	An operator must activate a manual send/receive switch before and after every transmission

11. - G2D11

Why are signal reports typically exchanged at the beginning of an HF contact?

Select	Answer
A	To be sure the contact will count for award programs
B	To follow standard radiogram structure
C	To allow each station to calibrate their frequency display
D	To allow each station to operate according to conditions

12. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Transmit a steady carrier until the PACTOR protocol times out and disconnects
B	Send broadcast packets containing your call sign while in MONITOR mode
C	Send a NAK code
D	Joining an existing contact is not possible, PACTOR connections are limited to two stations

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	Reduce long delayed echoes
C	Creates auroras that can reflect VHF signals
D	Improve HF long path propagation

14. - G3B09

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?

Select	Answer
A	12,000 miles
B	180 miles
C	1,200 miles
D	2,500 miles

15. - G3C01

Which ionospheric region is closest to the surface of Earth?

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

16. - G4A07

What happens as a receiver’s noise reduction control level is increased?

Select	Answer
A	Received frequency may become unstable
B	Received frequency may shift several kHz
C	CW signals may become severely attenuated
D	Received signals may become distorted

17. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	An ohmmeter
B	An oscilloscope
C	An ammeter
D	A signal generator

18. - G4C11

What technique helps to minimize RF “hot spots” in an amateur station?

Select	Answer
A	Using surge suppressor power outlets
B	Bonding all equipment enclosures together
C	Building all equipment in a metal enclosure
D	Placing low-pass filters on all feed lines

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

Select	Answer
A	Distorted speech
B	Excessive background noise
C	Excess intermodulation products
D	All these choices are correct

20. - G4E11

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

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

21. - G5A08

What is impedance?

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

22. - G5B12

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

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

23. - G5C04

What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

Select	Answer
A	67 ohms
B	300 ohms
C	75 ohms
D	150 ohms

24. - G6A04

Which of the following is characteristic of an electrolytic capacitor?

Select	Answer
A	Much less leakage than any other type
B	High capacitance for a given volume
C	Inexpensive RF capacitor
D	Tight tolerance

25. - G6B08

How is an LED biased when emitting light?

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

26. - G7A12

Which symbol in Figure G7-1 represents a solid core transformer?

Select	Answer
A	Symbol 1
B	Symbol 7
C	Symbol 6
D	Symbol 4

27. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The number of stages in the counter
B	The number of stages in the divider
C	The inductance and capacitance in the tank circuit
D	The time delay of the lag circuit

28. - G7C10

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

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

29. - G8A06

Which of the following is characteristic of QPSK31?

Select	Answer
A	Its encoding provides error correction
B	All these choices are correct
C	Its bandwidth is approximately the same as BPSK31
D	It is sideband sensitive

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	416.7 Hz
B	60 kHz
C	101.75 Hz
D	5 kHz

31. - G8C03

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

Select	Answer
A	Directory
B	Preamble
C	Trailer
D	Header

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

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	Coil the radials
B	Slope the radials downward
C	Lengthen the radials beyond one wavelength
D	Slope the radials upward

34. - G9C12

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

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

35. - G9D09

What is the primary use of a Beverage antenna?

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

Figure G7-1