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. - G0A06

What must you do if your station fails to meet the FCC RF exposure exemption criteria?

Select	Answer
A	Perform an RF exposure evaluation in accordance with World Meteorological Organization guidelines
B	Use an FCC-approved band-pass filter
C	Perform an RF Exposure Evaluation in accordance with FCC OET Bulletin 65
D	Contact the FCC for permission to transmit

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

3. - G1A04

Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?

Select	Answer
A	30 meters
B	60 meters
C	12 meters
D	11 meters

4. - G1B05

Which of the following one-way transmissions are permitted?

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

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

6. - G1D01

Who may receive partial credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
B	Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago
C	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
D	Any person who can demonstrate that they once held an FCC-issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC

7. - G1E04

Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	All these choices are correct
B	When operating within one mile of an FCC Monitoring Station
C	When a station is transmitting spread spectrum emissions
D	When using a band where the Amateur Service is secondary

8. - G2A08

What is the recommended way to break into a phone contact?

Select	Answer
A	Say “CQ” followed by the call sign of either station
B	Say “QRZ” several times, followed by your call sign
C	Say “Breaker Breaker”
D	Say your call sign once

9. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	Only a person holding an FCC-issued amateur operator license
B	A person holding an FCC-issued amateur operator license or an appropriate government official
C	Only a RACES net control operator
D	Any control operator when normal communication systems are operational

10. - G2C06

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

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

11. - G2D10

What is QRP operation?

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

12. - G2E05

What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?

Select	Answer
A	DSB
B	LSB
C	USB
D	SSB

13. - G3A01

How does a higher sunspot number affect HF propagation?

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

14. - G3B03

Which frequency will have the least attenuation for long-distance skip propagation?

Select	Answer
A	Just above the LUF
B	Just below the critical frequency
C	Just below the MUF
D	Just above the critical frequency

15. - G3C10

What is near vertical incidence skywave (NVIS) propagation?

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

16. - G4A01

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

Select	Answer
A	To reduce interference from carriers in the receiver passband
B	To eliminate receiver interference from impulse noise sources
C	To restrict the transmitter voice bandwidth
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	All these choices are correct
B	Transmitter
C	Antenna and feed line
D	Receiver

18. - G4C01

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

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

19. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.178 MHz to 7.181 MHz
B	7.178 MHz to 7.184 MHz
C	7.1765 MHz to 7.1795 MHz
D	7.175 MHz to 7.178 MHz

20. - G4E05

Which of the following most limits an HF mobile installation?

Select	Answer
A	The wire gauge of the DC power line to the transceiver
B	Efficiency of the electrically short antenna
C	“Picket fencing”
D	FCC rules limiting mobile output power on the 75-meter band

21. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Farad
B	Ohm
C	Ampere
D	Siemens

22. - G5B05

How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?

Select	Answer
A	Approximately 61 watts
B	Approximately 11 milliwatts
C	Approximately 61 milliwatts
D	Approximately 11 watts

23. - G5C13

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

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

24. - G6A09

Which of the following describes MOSFET construction?

Select	Answer
A	The gate is separated from the channel by a thin insulating layer
B	The source is formed by depositing metal on silicon
C	The source is separated from the drain by a thin insulating layer
D	The gate is formed by a back-biased junction

25. - G6B11

What is an SMA connector?

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

26. - G7A05

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

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

27. - G7B08

How is the efficiency of an RF power amplifier determined?

Select	Answer
A	Multiply the RF input power by the reciprocal of the RF output power
B	Divide the DC input power by the DC output power
C	Add the RF input power to the DC output power
D	Divide the RF output power by the DC input power

28. - G7C07

What term specifies a filter’s attenuation inside its passband?

Select	Answer
A	Q
B	Insertion loss
C	Ultimate rejection
D	Return loss

29. - G8A02

What is the name of the process that changes the phase angle of an RF signal to convey information?

Select	Answer
A	Phase convolution
B	Phase modulation
C	Phase inversion
D	Phase transformation

30. - G8B05

Which intermodulation products are closest to the original signal frequencies?

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

31. - G8C16

Which of the following provide digital voice modes?

Select	Answer
A	WSPR, MFSK16, and EasyPAL
B	FT8, FT4, and FST4
C	DMR, D-STAR, and SystemFusion
D	Winlink, PACTOR II, and PACTOR III

32. - G9A07

What must be done to prevent standing waves on a feed line connected to an antenna?

Select	Answer
A	The feed line must be an even number of physical half wavelengths long
B	The feed line must be an odd number of electrical quarter wavelengths long
C	The antenna feed point must be at DC ground potential
D	The antenna feed point impedance must be matched to the characteristic impedance of the feed line

33. - G9B11

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

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

34. - G9C10

Which of the following can be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth of a Yagi antenna?

Select	Answer
A	The number of elements on the boom
B	All these choices are correct
C	The spacing of each element along the boom
D	The physical length of the boom

35. - G9D08

How does a “screwdriver” mobile antenna adjust its feed point impedance?

Select	Answer
A	By varying its body capacitance
B	By extending and retracting the whip
C	By varying the base loading inductance
D	By deploying a capacitance hat