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	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. - G0B09

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

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

3. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

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

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	200 feet
B	100 feet
C	250 feet
D	50 feet

5. - G1C01

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

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

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	A license from the foreign country and a special remote station permit from the FCC
B	Only a license from the foreign country, as long as the call sign includes identification of portable operation in the US
C	A US operator/primary station license
D	Only an appropriate US operator/primary license 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 be for other licensed amateurs
B	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
C	They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
D	They must relate to emergencies or disaster relief

8. - G2A01

Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?

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

9. - G2B04

When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	1 kHz to 3 kHz
B	150 Hz to 500 Hz
C	3 kHz to 6 kHz
D	5 Hz to 50 Hz

10. - G2C07

When sending CW, what does a “C” mean when added to the RST report?

Select	Answer
A	100 percent copy
B	Key clicks
C	Chirpy or unstable signal
D	Report was read from an S meter rather than estimated

11. - G2D01

What is the Volunteer Monitor Program?

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

12. - G2E08

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

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

13. - G3A02

What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?

Select	Answer
A	It enhances propagation on all HF frequencies
B	It disrupts signals on lower frequencies more than those on higher frequencies
C	It disrupts communications via satellite more than direct communications
D	None, because only areas on the night side of the Earth are affected

14. - G3B02

What factors affect the MUF?

Select	Answer
A	Path distance and location
B	Time of day and season
C	All these choices are correct
D	Solar radiation and ionospheric disturbances

15. - G3C09

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

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

16. - G4A01

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

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

17. - G4B09

When is an analog multimeter preferred to a digital multimeter?

Select	Answer
A	When testing logic circuits
B	When adjusting circuits for maximum or minimum values
C	When high precision is desired
D	When measuring the frequency of an oscillator

18. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency circuits?

Select	Answer
A	Bypass inductor
B	Bypass capacitor
C	Reverse-biased diode
D	Forward-biased diode

19. - G4D07

How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Select	Answer
A	Approximately 1.5 times
B	Approximately 8 times
C	Approximately 4 times
D	Approximately 2 times

20. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

Select	Answer
A	Operating bandwidth may be very limited
B	Q of the antenna will be very low
C	Harmonic radiation may increase
D	Short antennas are more likely to cause distortion of transmitted signals

21. - G5A03

Which of the following is opposition to the flow of alternating current in an inductor?

Select	Answer
A	Reluctance
B	Admittance
C	Conductance
D	Reactance

22. - G5B01

What dB change represents a factor of two increase or decrease in power?

Select	Answer
A	Approximately 6 dB
B	Approximately 3 dB
C	Approximately 2 dB
D	Approximately 9 dB

23. - G5C14

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

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

24. - G6A03

What is the approximate forward threshold voltage of a germanium 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	4 GHz
C	500 MHz
D	50 MHz

26. - G7A10

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

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

27. - G7B09

What determines the frequency of an LC oscillator?

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

28. - G7C05

Which of the following is characteristic of a direct digital synthesizer (DDS)?

Select	Answer
A	Variable output frequency with the stability of a crystal oscillator
B	Extremely narrow tuning range
C	Relatively high-power output
D	Pure sine wave output

29. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Vestigial sideband
B	Phase modulation
C	Single sideband
D	Frequency modulation

30. - G8B05

Which intermodulation products are closest to the original signal frequencies?

Select	Answer
A	Odd-order
B	Intercept point
C	Even-order
D	Second harmonics

31. - G8C09

Which is true of mesh network microwave nodes?

Select	Answer
A	More nodes reduce overall microwave out of band interference
B	Links between two nodes in a network may have different frequencies and bandwidths
C	Having more nodes increases signal strengths
D	If one node fails, a packet may still reach its target station via an alternate node

32. - G9A04

What causes reflected power at an antenna’s feed point?

Select	Answer
A	Using more transmitter power than the antenna can handle
B	Feeding the antenna with unbalanced feed line
C	Operating an antenna at its resonant frequency
D	A difference between feed line impedance and antenna feed point impedance

33. - G9B11

What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?

Select	Answer
A	132 feet
B	42 feet
C	263 feet
D	84 feet

34. - G9C12

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

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

35. - G9D06

Which of the following is an advantage of a log-periodic antenna?

Select	Answer
A	Harmonic suppression
B	Polarization diversity
C	Higher gain per element than a Yagi antenna
D	Wide bandwidth

Figure G7-1