US Amateur Radio - General (Element 3, 2023-2027) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2023-2027) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

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

2. - G0B09

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

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

3. - G1A07

On which amateur frequencies in the 10-meter band may stations with a General class control operator transmit CW emissions?

Select	Answer
A	28.000 MHz to 28.025 MHz only
B	28.025 MHz to 28.300 MHz only
C	28.000 MHz to 28.300 MHz only
D	The entire band

4. - G1B06

Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?

Select	Answer
A	Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure
B	Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity
C	At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC
D	Under no circumstances, FCC rules take priority

5. - G1C04

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the manufacturer of your equipment and the antenna used
B	If you are using an antenna other than a dipole, you must keep a record of the gain of your antenna
C	You must keep a record of the date, time, frequency, power level, and stations worked
D	You must keep a record of all third-party traffic

6. - G1D05

When operating a US station by remote control from outside the country, what license is required of the control operator?

Select	Answer
A	Only a license from the foreign country, as long as the call sign includes identification of portable operation in the US
B	Only an appropriate US operator/primary license and a special remote station permit from the FCC
C	A US operator/primary station license
D	A license from the foreign country and a special remote station permit from the FCC

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 relate to emergencies or disaster relief
B	They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
C	They must be for other licensed amateurs
D	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

8. - G2A06

Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less bandwidth used and greater power efficiency
B	Very high-fidelity voice modulation
C	Less subject to interference from atmospheric static crashes
D	Ease of tuning on receive and immunity to impulse noise

9. - G2B07

Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	All these choices are correct
B	Identify your station by transmitting your call sign at least 3 times
C	Follow the voluntary band plan
D	Listen on the frequency for at least two minutes to be sure it is clear

10. - G2C10

What does the Q signal “QRN” mean?

Select	Answer
A	I am troubled by static
B	Stop sending
C	Zero beat my signal
D	Send more slowly

11. - G2D10

What is QRP operation?

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

12. - G2E10

Which of the following is a way to establish contact with a digital messaging system gateway station?

Select	Answer
A	Send an email to the system control operator
B	Respond when the station broadcasts its SSID
C	Transmit a connect message on the station’s published frequency
D	Send QRL in Morse code

13. - G3A06

What is a geomagnetic storm?

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

14. - G3B11

What happens to HF propagation when the LUF exceeds the MUF?

Select	Answer
A	Double-hop propagation along the path is more common
B	Propagation via ordinary skywave communications is not possible over that path
C	HF communications over the path are enhanced
D	Propagation over the path on all HF frequencies is enhanced

15. - G3C07

What makes HF scatter signals often sound distorted?

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

16. - G4A01

What is the purpose of the notch filter found on many HF transceivers?

Select	Answer
A	To restrict the transmitter voice bandwidth
B	To eliminate receiver interference from impulse noise sources
C	To reduce interference from carriers in the receiver passband
D	To remove interfering splatter generated by signals on adjacent frequencies

17. - G4B11

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

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

18. - G4C03

What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?

Select	Answer
A	Distorted speech
B	A steady hum whenever the transmitter is on the air
C	Clearly audible speech
D	On-and-off humming or clicking

19. - G4D03

What is the effect of an incorrectly adjusted speech processor?

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

20. - G4E04

Why should DC power for a 100-watt HF transceiver not be supplied by a vehicle’s auxiliary power socket?

Select	Answer
A	The socket’s wiring may be inadequate for the current drawn by the transceiver
B	The socket is not wired with an RF-shielded power cable
C	The DC polarity of the socket is reversed from the polarity of modern HF transceivers
D	Drawing more than 50 watts from this socket could cause the engine to overheat

21. - G5A08

What is impedance?

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

22. - G5B13

What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

Select	Answer
A	1500 watts
B	530 watts
C	1060 watts
D	2120 watts

23. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

Select	Answer
A	An inductor in parallel
B	An inductor in series
C	A capacitor in series
D	A capacitor in parallel

24. - G6A08

Which of the following is characteristic of low voltage ceramic capacitors?

Select	Answer
A	Tight tolerance
B	High capacitance for given volume
C	Comparatively low cost
D	High stability

25. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Digital
B	Analog
C	Programmable Logic
D	MMIC

26. - G7A06

What portion of the AC cycle is converted to DC by a full-wave rectifier?

Select	Answer
A	180 degrees
B	270 degrees
C	90 degrees
D	360 degrees

27. - G7B03

Which of the following describes the function of a two-input AND gate?

Select	Answer
A	Output is high only when both inputs are high
B	Output is low only when both inputs are high
C	Output is high when either or both inputs are low
D	Output is low when either or both inputs are high

28. - G7C09

What is the phase difference between the I and Q RF signals that software-defined radio (SDR) equipment uses for modulation and demodulation?

Select	Answer
A	90 degrees
B	Zero
C	180 degrees
D	45 degrees

29. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	Spurious signals that envelop nearby frequencies
B	The bandwidth of the modulated signal
C	The waveform created by connecting the peak values of the modulated signal
D	The carrier frequency that contains the signal

30. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	8 kHz
B	3 kHz
C	5 kHz
D	16 kHz

31. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A 7-bit code with start, stop, and parity bits
B	A 5-bit code with additional start and stop bits
C	A code using error detection and correction
D	A code using SELCAL and LISTEN

32. - G9A10

What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

Select	Answer
A	1:5
B	2:1
C	5:1
D	1:2

33. - G9B01

What is a characteristic of a random-wire HF antenna connected directly to the transmitter?

Select	Answer
A	It produces only vertically polarized radiation
B	Station equipment may carry significant RF current
C	It is more effective on the lower HF bands than on the higher bands
D	It must be longer than 1 wavelength

34. - G9C08

What is meant by the “main lobe” of a directive antenna?

Select	Answer
A	The point of maximum current in a radiating antenna element
B	The maximum voltage standing wave point on a radiating element
C	The magnitude of the maximum vertical angle of radiation
D	The direction of maximum radiated field strength from the antenna

35. - G9D04

What is the primary function of antenna traps?

Select	Answer
A	To enable multiband operation
B	To provide balanced feed point impedance
C	To prevent out-of-band operation
D	To notch spurious frequencies