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

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1. - G0A12

What stations are subject to the FCC rules on RF exposure?

SelectAnswer
AOnly stations transmitting more than 500 watts PEP
BAll stations with a time-averaged transmission of more than one milliwatt
CAll commercial stations; amateur radio stations are exempt
DOnly stations with antennas lower than one wavelength above the ground

2. - G0B09

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

SelectAnswer
AThe generator must be insulated from ground
BThe generator should be operated in a well-ventilated area
CAll these choices are correct
DFuel should be stored near the generator for rapid refueling in case of an emergency

3. - G1A06

Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?

SelectAnswer
AAmateur stations may use the band only during emergencies
BAmateur stations must not cause harmful interference to primary users and must accept interference from primary users
CAmateur stations may only operate during specific hours of the day, while primary users are permitted 24-hour use of the band
DAmateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station

4. - G1B04

Which of the following transmissions is permitted for all amateur stations?

SelectAnswer
AEncrypted messages, if not intended to facilitate a criminal act
BUnidentified transmissions of less than 10 seconds duration for test purposes only
COccasional retransmission of weather and propagation forecast information from US government stations
DAutomatic retransmission of other amateur signals by any amateur station

5. - G1C09

What is the maximum power limit on the 60-meter band?

SelectAnswer
A1500 watts PEP
BERP of 100 watts PEP with respect to a dipole
CERP of 100 watts PEP with respect to an isotropic antenna
D10 watts RMS

6. - G1D06

Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with “AG” after their call sign?

SelectAnswer
AWhenever they operate using General class frequency privileges
BWhenever they operate on any amateur frequency
CA special identifier is not required if their General class license application has been filed with the FCC
DWhenever they operate using Technician frequency privileges

7. - G1E07

In what part of the 2.4 GHz band may an amateur station communicate with non-licensed Wi-Fi stations?

SelectAnswer
AAnywhere in the band
BChannels 1 through 4
CChannels 42 through 45
DNo part

8. - G2A08

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

SelectAnswer
ASay your call sign once
BSay “Breaker Breaker”
CSay “QRZ” several times, followed by your call sign
DSay “CQ” followed by the call sign of either station

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?

SelectAnswer
A5 Hz to 50 Hz
B150 Hz to 500 Hz
C1 kHz to 3 kHz
D3 kHz to 6 kHz

10. - G2C02

What should you do if a CW station sends “QRS?”

SelectAnswer
AIncrease your power
BRepeat everything twice
CSend slower
DChange frequency

11. - G2D01

What is the Volunteer Monitor Program?

SelectAnswer
AAmateur volunteers who conduct frequency coordination for amateur VHF repeaters
BAmateur volunteers who use their station equipment to help civil defense organizations in times of emergency
CAmateur volunteers who are formally enlisted to monitor the airwaves for rules violations
DAmateur volunteers who conduct amateur licensing examinations

12. - G2E07

Which of the following is required when using FT8?

SelectAnswer
AReceiver attenuator set to -12 dB
BA special hardware modem
CA vertically polarized antenna
DComputer time accurate to within approximately 1 second

13. - G3A12

What does the K-index measure?

SelectAnswer
AThe relative position of sunspots on the surface of the Sun
BThe short-term stability of the Sun’s magnetic field
CThe solar radio flux at Boulder, Colorado
DThe short-term stability of Earth’s geomagnetic field

14. - G3B07

What does LUF stand for?

SelectAnswer
AThe Lowest Usable Frequency during a 24-hour period
BLowest Usable Frequency during the past 60 minutes
CLowest Usable Frequency for communications to any point outside a 100-mile radius
DThe Lowest Usable Frequency for communications between two specific points

15. - G3C05

Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?

SelectAnswer
AThe F region is unstable during daylight hours
BThe F region absorbs signals at these frequencies during daylight hours
CThe D region absorbs signals at these frequencies during daylight hours
DThe E region is unstable during daylight hours

16. - G4A05

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

SelectAnswer
ATo reduce harmonic radiation
BTo prevent excessive drive
CTo balance the transmitter audio frequency response
DTo increase overall efficiency

17. - G4B08

What transmitter performance parameter does a two-tone test analyze?

SelectAnswer
APercentage of carrier phase shift
BLinearity
CPercentage of suppression of the carrier and undesired sideband for SSB
DPercentage of frequency modulation

18. - G4C07

Why should soldered joints not be used in lightning protection ground connections?

SelectAnswer
ASolder has too high a dielectric constant to provide adequate lightning protection
BSolder flux will prevent a low conductivity connection
CA soldered joint will likely be destroyed by the heat of a lightning strike
DAll these choices are correct

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?

SelectAnswer
AAt least 1 kHz above the edge of the segment
BAt least 3 kHz below the edge of the segment
CAt least 3 kHz above the edge of the segment
DAt least 1 kHz below the edge of the segment

20. - G4E05

Which of the following most limits an HF mobile installation?

SelectAnswer
AEfficiency of the electrically short antenna
BFCC rules limiting mobile output power on the 75-meter band
C“Picket fencing”
DThe wire gauge of the DC power line to the transceiver

21. - G5A07

What is the term for the inverse of impedance?

SelectAnswer
ASusceptance
BReluctance
CAdmittance
DConductance

22. - G5B11

What is the ratio of PEP to average power for an unmodulated carrier?

SelectAnswer
A2.00
B0.707
C1.00
D1.414

23. - G5C12

What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?

SelectAnswer
A1,000 microfarads
B0.07 microfarads
C14.3 microfarads
D70 microfarads

24. - G6A08

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

SelectAnswer
AHigh stability
BTight tolerance
CHigh capacitance for given volume
DComparatively low cost

25. - G6B08

How is an LED biased when emitting light?

SelectAnswer
AIn the tunnel-effect region
BReverse biased
CForward biased
DAt the Zener voltage

26. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

SelectAnswer
ASymbol 11
BSymbol 7
CSymbol 6
DSymbol 1

27. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

SelectAnswer
AFM
BAll these choices are correct
CAM
DSSB

28. - G7C07

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

SelectAnswer
AQ
BUltimate rejection
CInsertion loss
DReturn loss

29. - G8A13

What is a link budget?

SelectAnswer
AThe financial costs associated with operating a radio link
BThe difference between transmit power and receiver sensitivity
CThe sum of transmit power and antenna gains minus system losses as seen at the receiver
DThe sum of antenna gains minus system losses

30. - G8B06

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

SelectAnswer
A8 kHz
B16 kHz
C5 kHz
D3 kHz

31. - G8C08

Which of the following statements is true about PSK31?

SelectAnswer
AUpper case letters are sent with more power
BError correction is used to ensure accurate message reception
CHigher power is needed as compared to RTTY for similar error rates
DUpper case letters use longer Varicode bit sequences and thus slow down transmission

32. - G9A09

What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?

SelectAnswer
A4:1
B1:2
C2:1
D1:4

33. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

SelectAnswer
A16 feet
B8 feet
C33 feet
D24 feet

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?

SelectAnswer
AApproximately 9 dB higher
BApproximately 1.5 dB higher
CApproximately 3 dB higher
DApproximately 6 dB higher

35. - G9D12

What is the common name of a dipole with a single central support?

SelectAnswer
AInverted L
BLazy H
CSloper
DInverted V

Figure G7-1