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

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1. - G0A04

What does “time averaging” mean when evaluating RF radiation exposure?

SelectAnswer
AThe average amount of power developed by the transmitter over a specific 24-hour period
BThe average time it takes RF radiation to have any long-term effect on the body
CThe total time of the exposure
DThe total RF exposure averaged over a certain period

2. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

SelectAnswer
A15 amperes
B25 amperes
C30 amperes
D20 amperes

3. - G1A01

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

SelectAnswer
A160 meters, 60 meters, 15 meters, and 12 meters
B60 meters, 30 meters, 17 meters, and 12 meters
C80 meters, 20 meters, 15 meters, and 10 meters
D80 meters, 40 meters, 20 meters, and 15 meters

4. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the amateur service?

SelectAnswer
AThey may be used if they do not obscure the meaning of a message
BThey are not permitted
COnly “Q” signals are permitted
DThey are limited to those expressly listed in Part 97 of the FCC rules

5. - G1C03

What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

SelectAnswer
A1.8 kHz
B5.6 kHz
C3 kHz
D2.8 kHz

6. - G1D11

What action is required to obtain a new General class license after a previously held license has expired and the two-year grace period has passed?

SelectAnswer
AThe applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
BThere are no requirements other than being able to show a copy of the expired license
CThey must have a letter from the FCC showing they once held an amateur or commercial license
DContact the FCC to have the license reinstated

7. - G1E09

Under what circumstances are messages that are sent via digital modes exempt from Part 97 third-party rules that apply to other modes of communication?

SelectAnswer
AWhen under automatic control
BUnder no circumstances
CWhen messages are not encrypted
DWhen messages are encrypted

8. - G2A08

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

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

9. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

SelectAnswer
AImmediately cease all transmissions
BAcknowledge the station in distress and determine what assistance may be needed
CInform your local emergency coordinator
DImmediately decrease power to avoid interfering with the station in distress

10. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

SelectAnswer
ASK
BAR
CKN
DBK

11. - G2D01

What is the Volunteer Monitor Program?

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

12. - G2E01

Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?

SelectAnswer
ACW
BLSB
CUSB
DDSB

13. - G3A02

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

SelectAnswer
AIt disrupts communications via satellite more than direct communications
BIt disrupts signals on lower frequencies more than those on higher frequencies
CIt enhances propagation on all HF frequencies
DNone, because only areas on the night side of the Earth are affected

14. - G3B08

What does MUF stand for?

SelectAnswer
AThe Maximum Usable Frequency during a 24-hour period
BThe Maximum Usable Frequency for communications between two points
CThe Minimum Usable Frequency for communications between two points
DThe Minimum Usable Frequency during a 24-hour period

15. - G3C09

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

SelectAnswer
AFaraday rotation
BScatter
CShort-path
DChordal hop

16. - G4A03

How does a noise blanker work?

SelectAnswer
ABy redirecting noise pulses into a filter capacitor
BBy clipping noise peaks
CBy reducing receiver gain during a noise pulse
DBy temporarily increasing received bandwidth

17. - G4B02

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

SelectAnswer
AAn oscilloscope uses less power
BComplex waveforms can be measured
CComplex impedances can be easily measured
DGreater precision

18. - G4C03

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

SelectAnswer
AA steady hum whenever the transmitter is on the air
BDistorted speech
COn-and-off humming or clicking
DClearly audible speech

19. - G4D04

What does an S meter measure?

SelectAnswer
AImpedance
BReceived signal strength
CCarrier suppression
DTransmitter power output

20. - G4E07

Which of the following may cause receive interference to an HF transceiver installed in a vehicle?

SelectAnswer
AThe battery charging system
BAll these choices are correct
CThe fuel delivery system
DThe control computers

21. - G5A05

How does an inductor react to AC?

SelectAnswer
AAs the frequency of the applied AC increases, the reactance increases
BAs the amplitude of the applied AC increases, the reactance increases
CAs the frequency of the applied AC increases, the reactance decreases
DAs the amplitude of the applied AC increases, the reactance decreases

22. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

SelectAnswer
A34 volts
B24 volts
C12 volts
D8.5 volts

23. - G5C13

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

SelectAnswer
AAn inductor in parallel
BAn inductor in series
CA capacitor in series
DA capacitor in parallel

24. - G6A08

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

SelectAnswer
ATight tolerance
BHigh capacitance for given volume
CHigh stability
DComparatively low cost

25. - G6B06

What kind of device is an integrated circuit operational amplifier?

SelectAnswer
AProgrammable Logic
BMMIC
CAnalog
DDigital

26. - G7A12

Which symbol in Figure G7-1 represents a solid core transformer?

SelectAnswer
ASymbol 1
BSymbol 7
CSymbol 6
DSymbol 4

27. - G7B07

Which of the following are basic components of a sine wave oscillator?

SelectAnswer
AA filter and an amplifier operating in a feedback loop
BA circulator and a filter operating in a feed-forward loop
CA frequency multiplier and a mixer
DAn amplifier and a divider

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?

SelectAnswer
A180 degrees
BZero
C45 degrees
D90 degrees

29. - G8A02

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

SelectAnswer
APhase inversion
BPhase transformation
CPhase modulation
DPhase convolution

30. - G8B01

Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?

SelectAnswer
ABeat frequency oscillator
BImage frequency
CLocal oscillator
DRF input

31. - G8C16

Which of the following provide digital voice modes?

SelectAnswer
AWinlink, PACTOR II, and PACTOR III
BWSPR, MFSK16, and EasyPAL
CDMR, D-STAR, and SystemFusion
DFT8, FT4, and FST4

32. - G9A10

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

SelectAnswer
A5:1
B1:5
C1:2
D2:1

33. - G9B11

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

SelectAnswer
A84 feet
B42 feet
C263 feet
D132 feet

34. - G9C04

How does antenna gain in dBi compare to gain stated in dBd for the same antenna?

SelectAnswer
AGain in dBi is 2.15 dB lower
BGain in dBi is 2.15 dB higher
CGain in dBd is 1.25 dBd lower
DGain in dBd is 1.25 dBd higher

35. - G9D10

In which direction or directions does an electrically small loop (less than 1/10 wavelength in circumference) have nulls in its radiation pattern?

SelectAnswer
ABroadside to the loop
BElectrically small loops are omnidirectional
CBroadside and in the plane of the loop
DIn the plane of the loop

Figure G7-1