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	By calculation based on computer modeling
D	All these choices are correct

2. - G0B09

Which of the following is true of an emergency generator installation?

Select	Answer
A	Fuel should be stored near the generator for rapid refueling in case of an emergency
B	The generator must be insulated from ground
C	All these choices are correct
D	The generator should be operated in a well-ventilated area

3. - G1A08

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

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

4. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Automatic identification of repeaters
B	All these choices are correct
C	Transmission of bulletins of general interest to amateur radio licensees
D	Observation of propagation and reception

5. - G1C06

What is the limit for transmitter power on the 1.8 MHz band?

Select	Answer
A	1500 watts PEP output
B	1000 watts PEP output
C	200 watts PEP output
D	1200 watts PEP output

6. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	The Universal Licensing System
B	The Wireless Telecommunications Bureau
C	A Volunteer Examiner Coordinator
D	The Federal Communications Commission

7. - G1E12

When may third-party messages be transmitted via remote control?

Select	Answer
A	Under any circumstances in which third party messages are permitted by FCC rules
B	Only when the message is intended for third parties in areas where licensing is controlled by the FCC
C	Under no circumstances except for emergencies
D	Only when the message is intended for licensed radio amateurs

8. - G2A12

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

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

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	All these choices are correct
C	Transmit the full net roster at the beginning of every session
D	Always use multiple sets of phonetics during check-in

10. - G2C11

What does the Q signal “QRV” mean?

Select	Answer
A	I am quitting for the day
B	I am ready to receive
C	There is interference on the frequency
D	You are sending too fast

11. - G2D10

What is QRP operation?

Select	Answer
A	Low-power transmit operation
B	Transmission using Quick Response Protocol
C	Remote piloted model control
D	Traffic relay procedure net operation

12. - G2E11

What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?

Select	Answer
A	To provide high-speed data services during an emergency or community event
B	To provide real time propagation data by monitoring amateur radio transmissions worldwide
C	To provide DX spotting reports to aid contesters and DXers
D	To provide FM repeater coverage in remote areas

13. - G3A01

How does a higher sunspot number affect HF propagation?

Select	Answer
A	A zero sunspot number indicates undisturbed conditions
B	Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
C	A zero sunspot number indicates that radio propagation is not possible on any band
D	Lower sunspot numbers generally indicate greater probability of sporadic E propagation

14. - G3B01

What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?

Select	Answer
A	The signal might be cancelled causing severe attenuation
B	Signal strength increased by 3 dB
C	Periodic fading approximately every 10 seconds
D	A slightly delayed echo might be heard

15. - G3C11

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

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

16. - G4A05

Why is automatic level control (ALC) used with an RF power amplifier?

Select	Answer
A	To increase overall efficiency
B	To prevent excessive drive
C	To reduce harmonic radiation
D	To balance the transmitter audio frequency response

17. - G4B06

What is an advantage of a digital multimeter as compared to an analog multimeter?

Select	Answer
A	Less prone to overload
B	Better for measuring computer circuits
C	Faster response
D	Higher precision

18. - G4C12

Why must all metal enclosures of station equipment be grounded?

Select	Answer
A	It ensures that hazardous voltages cannot appear on the chassis
B	It ensures that the neutral wire is grounded
C	It prevents a blown fuse in the event of an internal short circuit
D	It prevents signal overload

19. - G4D10

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

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

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. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ohm
B	Siemens
C	Ampere
D	Farad

22. - G5B09

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

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

23. - G5C09

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

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

24. - G6A05

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

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

25. - G6B04

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

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

26. - G7A04

What is characteristic of a half-wave rectifier in a power supply?

Select	Answer
A	The output voltage is two times the peak input voltage
B	Only one diode is required
C	The ripple frequency is twice that of a full-wave rectifier
D	More current can be drawn from the half-wave rectifier

27. - G7B01

What is the purpose of neutralizing an amplifier?

Select	Answer
A	To cut off the final amplifier during standby periods
B	To limit the modulation index
C	To keep the carrier on frequency
D	To eliminate self-oscillations

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. - G8A03

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

Select	Answer
A	Frequency transformation
B	Frequency convolution
C	Frequency modulation
D	Frequency conversion

30. - G8B09

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Select	Answer
A	It results in the best signal-to-noise ratio
B	It improves impedance matching of the antenna
C	It is required by FCC rules
D	It minimizes power consumption in the receiver

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 are sent with more power
C	Upper case letters use longer Varicode bit sequences and thus slow down transmission
D	Higher power is needed as compared to RTTY for similar error rates

32. - G9A01

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

Select	Answer
A	The distance between the centers of the conductors and the radius of the conductors
B	The frequency of the signal and the length of the line
C	The radius of the conductors and the frequency of the signal
D	The distance between the centers of the conductors and the length of the line

33. - G9B03

Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?

Select	Answer
A	Hemispherical
B	Omnidirectional in azimuth
C	Bi-directional in azimuth
D	Isotropic

34. - G9C09

In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?

Select	Answer
A	Approximately 1.5 dB higher
B	Approximately 9 dB higher
C	Approximately 6 dB higher
D	Approximately 3 dB higher

35. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They must be fed with open wire line
B	They must be used with an antenna tuner
C	They have poor harmonic rejection
D	They present low impedance on all design frequencies