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. - G0A10

What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	Use an antenna with a higher front-to-back ratio
B	Take precautions to ensure that the antenna cannot be pointed in their direction when they are present
C	Change to a non-polarized antenna with higher gain
D	All these choices are correct

2. - G0B05

Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

Select	Answer
A	Current flowing from one or more of the hot wires to the neutral wire
B	All these choices are correct
C	Overvoltage on the hot wires
D	Current flowing from one or more of the hot wires directly to ground

3. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	17 meters
B	160 meters
C	12 meters
D	30 meters

4. - G1B05

Which of the following one-way transmissions are permitted?

Select	Answer
A	All these choices are correct
B	Regular transmissions offering equipment for sale, if intended for amateur radio use
C	Transmissions to assist with learning the International Morse code
D	Unidentified test transmissions of less than 10 seconds in duration

5. - G1C11

What measurement is specified by FCC rules that regulate maximum power?

Select	Answer
A	RMS input to the antenna
B	RMS output from the transmitter
C	PEP output from the transmitter
D	PEP input to the antenna

6. - G1D03

On which of the following band segments may you operate if you are a Technician class operator and have an unexpired Certificate of Successful Completion of Examination (CSCE) for General class privileges?

Select	Answer
A	Only on the Technician band segments until you have a receipt for the FCC application fee payment
B	On any General or Technician class band segment except 30 meters and 60 meters
C	On any General or Technician class band segment
D	Only the Technician band segments until your upgrade is posted in the FCC database

7. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?

Select	Answer
A	Only during an FCC-declared general state of communications emergency
B	Only if the 10-meter repeater control operator holds at least a General class license
C	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
D	Under no circumstances

8. - G2A07

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

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

9. - G2B03

What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?

Select	Answer
A	Attempt to resolve the interference problem with the other stations in a mutually acceptable manner
B	Switch to the opposite sideband
C	Advise the interfering stations that you are on the frequency and that you have priority
D	Decrease power and continue to transmit

10. - G2C06

What does the term “zero beat” mean in CW operation?

Select	Answer
A	Matching the speed of the transmitting station
B	Operating split to avoid interference on frequency
C	Sending without error
D	Matching the transmit frequency to the frequency of a received signal

11. - G2D10

What is QRP operation?

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

12. - G2E14

What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

Select	Answer
A	The mark and space frequencies may be reversed
B	You may have selected the wrong baud rate
C	All these choices are correct
D	You may be listening on the wrong sideband

13. - G3A12

What does the K-index measure?

Select	Answer
A	The relative position of sunspots on the surface of the Sun
B	The short-term stability of Earth’s geomagnetic field
C	The solar radio flux at Boulder, Colorado
D	The short-term stability of the Sun’s magnetic field

14. - G3B08

What does MUF stand for?

Select	Answer
A	The Minimum Usable Frequency during a 24-hour period
B	The Minimum Usable Frequency for communications between two points
C	The Maximum Usable Frequency during a 24-hour period
D	The Maximum Usable Frequency for communications between two points

15. - G3C10

What is near vertical incidence skywave (NVIS) propagation?

Select	Answer
A	Double hop propagation near the LUF
B	Long path HF propagation at sunrise and sunset
C	Propagation near the MUF
D	Short distance MF or HF propagation at high elevation angles

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	Received signals may become distorted
D	CW signals may become severely attenuated

17. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	Greater precision
B	Complex impedances can be easily measured
C	Complex waveforms can be measured
D	An oscilloscope uses less power

18. - G4C10

What could be a symptom caused by a ground loop in your station’s audio connections?

Select	Answer
A	The SWR reading for one or more antennas is suddenly very high
B	You receive reports of harmonic interference from your station
C	You receive reports of “hum” on your station’s transmitted signal
D	An item of station equipment starts to draw excessive amounts of current

19. - G4D01

What is the purpose of a speech processor in a transceiver?

Select	Answer
A	Increase the apparent loudness of transmitted voice signals
B	Prevent distortion of voice signals
C	Decrease high-frequency voice output to prevent out-of-band operation
D	Increase transmitter bass response for more natural-sounding SSB signals

20. - G4E10

Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	To prevent damage to the battery due to excessive voltage at high illumination levels
B	To limit the current flowing from the panel to a safe value
C	To prevent overload by regulating the charging voltage
D	To prevent discharge of the battery through the panel during times of low or no illumination

21. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ampere
B	Farad
C	Ohm
D	Siemens

22. - G5B10

What percentage of power loss is equivalent to a loss of 1 dB?

Select	Answer
A	20.6 percent
B	12.2 percent
C	10.9 percent
D	25.9 percent

23. - G5C13

Which of the following components should be added to a capacitor to increase the capacitance?

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

24. - G6A04

Which of the following is characteristic of an electrolytic capacitor?

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

25. - G6B11

What is an SMA connector?

Select	Answer
A	A connector designed for serial multiple access signals
B	A type-S to type-M adaptor
C	A small threaded connector suitable for signals up to several GHz
D	A type of push-on connector intended for high-voltage applications

26. - G7A03

Which type of rectifier circuit uses two diodes and a center-tapped transformer?

Select	Answer
A	Full-wave bridge
B	Half-wave
C	Full-wave
D	Synchronous

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 analog mixer
D	An array of operational amplifiers used for tri-state arithmetic operations

28. - G7C13

What term specifies a filter’s maximum ability to reject signals outside its passband?

Select	Answer
A	Rolloff
B	Notch depth
C	Insertion loss
D	Ultimate rejection

29. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Insufficient bandwidth
B	Frequency drift
C	Excessive bandwidth
D	Insufficient audio

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. - G8C01

On what band do amateurs share channels with the unlicensed Wi-Fi service?

Select	Answer
A	902 MHz
B	432 MHz
C	2.4 GHz
D	10.7 GHz

32. - G9A02

What is the relationship between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	High SWR makes it difficult to measure transmission line loss
B	There is no relationship between transmission line loss and SWR
C	High SWR reduces the relative effect of transmission line loss
D	High SWR increases loss in a lossy transmission line

33. - G9B12

What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?

Select	Answer
A	16 feet
B	21 feet
C	11 feet
D	8 feet

34. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Tapered-diameter elements
B	Closer element spacing
C	Larger-diameter elements
D	Loading coils in series with the element

35. - G9D04

What is the primary function of antenna traps?

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