Anonymous User

Hamboozler

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?

SelectAnswer
APerform a routine RF exposure evaluation and prevent access to any identified high exposure areas
BNotify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
CAll these choices are correct
DPost a copy of FCC Part 97.13 in the station

2. - G0B13

Where should lightning arrestors be located?

SelectAnswer
AIn series with each ground lead
BAt the closest power pole ground electrode
COn the antenna, opposite the feed point
DWhere the feed lines enter the building

3. - G1A03

On which of the following bands is image transmission prohibited?

SelectAnswer
A30 meters
B20 meters
C12 meters
D160 meters

4. - G1B08

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

SelectAnswer
AOnly when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country
BOnly when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country
COnly when the foreign country has a formal third-party agreement filed with the FCC
DWhen the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications

5. - G1C09

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

SelectAnswer
AERP of 100 watts PEP with respect to an isotropic antenna
B1500 watts PEP
C10 watts RMS
DERP of 100 watts PEP with respect to a dipole

6. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

SelectAnswer
A30 days
B365 days
CFor as long as your current license is valid
D180 days

7. - G1E03

What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

SelectAnswer
ANo third-party traffic may be transmitted
BThe interrogating transmission must be made by another automatically controlled station
CThe control operator of the interrogating station must hold an Amateur Extra class license
DThe station initiating the contact must be under local or remote control

8. - G2A06

Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

SelectAnswer
ALess bandwidth used and greater power efficiency
BEase of tuning on receive and immunity to impulse noise
CLess subject to interference from atmospheric static crashes
DVery high-fidelity voice modulation

9. - G2B06

How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

SelectAnswer
ASend “QRL?” on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
BSend the letter “V” in Morse code several times and listen for a response, or say “test” several times and listen for a response
CSend “QSY” on CW or if using phone, announce “the frequency is in use,” then give your call sign and listen for a response
DListen for 2 minutes before calling CQ

10. - G2C08

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

SelectAnswer
ASK
BBK
CKN
DAR

11. - G2D05

Which of the following indicates that you are looking for an HF contact with any station?

SelectAnswer
ATransmit an unmodulated carried for approximately 10 seconds, followed by “this is” and your call sign, and pause to listen -- repeat as necessary
BSign your call sign once, followed by the words “listening for a call” -- if no answer, change frequency and repeat
CSay “QTC” followed by “this is” and your call sign -- if no answer, change frequency and repeat
DRepeat “CQ” a few times, followed by “this is,” then your call sign a few times, then pause to listen, repeat as necessary

12. - G2E13

What is another name for a Winlink Remote Message Server?

SelectAnswer
APrinter/Server
BRJ-45
CGateway
DTerminal Node Controller

13. - G3A14

How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?

SelectAnswer
AVHF/UHF ducting is improved
BVHF/UHF ducting is disturbed
CHF communication is improved
DHF communication is disturbed

14. - G3B02

What factors affect the MUF?

SelectAnswer
ASolar radiation and ionospheric disturbances
BPath distance and location
CAll these choices are correct
DTime of day and season

15. - G3C08

Why are HF scatter signals in the skip zone usually weak?

SelectAnswer
APropagation is via ducts in the F region, which absorb most of the energy
BSignals are scattered from the magnetosphere, which is not a good reflector
CPropagation is via ground waves, which absorb most of the signal energy
DOnly a small part of the signal energy is scattered into the skip zone

16. - G4A01

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

SelectAnswer
ATo reduce interference from carriers in the receiver passband
BTo restrict the transmitter voice bandwidth
CTo remove interfering splatter generated by signals on adjacent frequencies
DTo eliminate receiver interference from impulse noise sources

17. - G4B05

Why do voltmeters have high input impedance?

SelectAnswer
AIt decreases the loading on circuits being measured
BIt allows for higher voltages to be safely measured
CIt improves the resolution of the readings
DIt improves the frequency response

18. - G4C09

How can the effects of ground loops be minimized?

SelectAnswer
ABond equipment enclosures together
BConnect the AC neutral conductor to the ground wire
CAvoid using lock washers and star washers when making ground connections
DConnect all ground conductors in series

19. - G4D06

How much change in signal strength is typically represented by one S unit?

SelectAnswer
A18 dB
B6 dB
C15 dB
D12 dB

20. - G4E08

In what configuration are the individual cells in a solar panel connected together?

SelectAnswer
AShunt
BBypass
CSeries-parallel
DFull-wave bridge

21. - G5A11

What letter is used to represent reactance?

SelectAnswer
AZ
BY
CX
DB

22. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

SelectAnswer
AThe RMS value
BThe reciprocal of the RMS value
CThe peak value
DThe peak-to-peak value

23. - G5C11

What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?

SelectAnswer
A70 millihenries
B14.3 millihenries
C1,000 millihenries
D7 millihenries

24. - G6A09

Which of the following describes MOSFET construction?

SelectAnswer
AThe gate is formed by a back-biased junction
BThe source is separated from the drain by a thin insulating layer
CThe gate is separated from the channel by a thin insulating layer
DThe source is formed by depositing metal on silicon

25. - G6B07

Which of the following describes a type N connector?

SelectAnswer
AA moisture-resistant RF connector useful to 10 GHz
BA low noise figure VHF connector
CA nickel plated version of the PL-259
DA small bayonet connector used for data circuits

26. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

SelectAnswer
AA steady DC voltage
BA sine wave at half the frequency of the AC input
CA series of DC pulses at the same frequency as the AC input
DA series of DC pulses at twice the frequency of the AC input

27. - G7B02

Which of these classes of amplifiers has the highest efficiency?

SelectAnswer
AClass AB
BClass B
CClass C
DClass A

28. - G7C11

Which of these functions is performed by software in a software-defined radio (SDR)?

SelectAnswer
AFiltering
BModulation
CDetection
DAll these choices are correct

29. - G8A01

How is direct binary FSK modulation generated?

SelectAnswer
ABy using a transceiver’s computer data interface protocol to change frequencies
BBy changing an oscillator’s frequency directly with a digital control signal
CBy keying an FM transmitter with a sub-audible tone
DBy reconfiguring the CW keying input to act as a tone generator

30. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

SelectAnswer
ABalanced converter
BMixer
CReactance modulator
DMultiplier

31. - G8C08

Which of the following statements is true about PSK31?

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

32. - G9A05

How does the attenuation of coaxial cable change with increasing frequency?

SelectAnswer
AAttenuation increases
BAttenuation is independent of frequency
CAttenuation decreases
DAttenuation follows Marconi’s Law of Attenuation

33. - G9B03

Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?

SelectAnswer
AOmnidirectional in azimuth
BIsotropic
CHemispherical
DBi-directional in azimuth

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

35. - G9D04

What is the primary function of antenna traps?

SelectAnswer
ATo prevent out-of-band operation
BTo notch spurious frequencies
CTo provide balanced feed point impedance
DTo enable multiband operation