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

Anonymous User

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

2. - G0B06

Which of the following is covered by the National Electrical Code?

Select	Answer
A	RF exposure limits of the human body
B	Acceptable modulation limits
C	Electrical safety of the station
D	Acceptable bandwidth limits

3. - G1A08

Which HF bands have segments exclusively allocated to Amateur Extra licensees?

Select	Answer
A	All HF bands except 160 meters and 10 meters
B	All HF bands
C	60 meters, 30 meters, 17 meters, and 12 meters
D	80 meters, 40 meters, 20 meters, and 15 meters

4. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	All these choices are correct
B	The frequency must be posted on the internet or published in a national periodical
C	The frequency must be coordinated with the National Beacon Organization
D	No more than one beacon station may transmit in the same band from the same station location

5. - G1C09

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

Select	Answer
A	10 watts RMS
B	1500 watts PEP
C	ERP of 100 watts PEP with respect to a dipole
D	ERP of 100 watts PEP with respect to an isotropic 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 the Technician band segments until your upgrade is posted in the FCC database
B	Only on the Technician band segments until you have a receipt for the FCC application fee payment
C	On any General or Technician class band segment except 30 meters and 60 meters
D	On any General or Technician class band segment

7. - G1E05

What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?

Select	Answer
A	They must relate to emergencies or disaster relief
B	They must be for other licensed amateurs
C	They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
D	The message must be limited to no longer than 1 minute in duration and the name of the third party must be recorded in the station log

8. - G2A10

Which of the following statements is true of VOX operation versus PTT operation?

Select	Answer
A	The received signal is more natural sounding
B	It occupies less bandwidth
C	It allows “hands free” operation
D	It provides more power output

9. - G2B06

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

Select	Answer
A	Send “QRL?” on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
B	Send “QSY” on CW or if using phone, announce “the frequency is in use,” then give your call sign and listen for a response
C	Send the letter “V” in Morse code several times and listen for a response, or say “test” several times and listen for a response
D	Listen for 2 minutes before calling CQ

10. - G2C07

When sending CW, what does a “C” mean when added to the RST report?

Select	Answer
A	100 percent copy
B	Key clicks
C	Report was read from an S meter rather than estimated
D	Chirpy or unstable signal

11. - G2D11

Why are signal reports typically exchanged at the beginning of an HF contact?

Select	Answer
A	To follow standard radiogram structure
B	To be sure the contact will count for award programs
C	To allow each station to operate according to conditions
D	To allow each station to calibrate their frequency display

12. - G2E07

Which of the following is required when using FT8?

Select	Answer
A	A special hardware modem
B	A vertically polarized antenna
C	Computer time accurate to within approximately 1 second
D	Receiver attenuator set to -12 dB

13. - G3A06

What is a geomagnetic storm?

Select	Answer
A	A temporary disturbance in Earth’s geomagnetic field
B	A thunderstorm that affects radio propagation
C	Ripples in the geomagnetic force
D	A sudden drop in the solar flux index

14. - G3B04

Which of the following is a way to determine current propagation on a desired band from your station?

Select	Answer
A	Use a network of automated receiving stations on the internet to see where your transmissions are being received
B	All these choices are correct
C	Check the A-index
D	Send a series of dots and listen for echoes

15. - G3C02

What is meant by the term “critical frequency” at a given incidence angle?

Select	Answer
A	The highest frequency which is refracted back to Earth
B	The frequency at which the signal-to-noise ratio is 6 dB
C	The lowest frequency which is refracted back to Earth
D	The frequency at which the signal-to-noise ratio approaches unity

16. - G4A01

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

Select	Answer
A	To eliminate receiver interference from impulse noise sources
B	To restrict the transmitter voice bandwidth
C	To remove interfering splatter generated by signals on adjacent frequencies
D	To reduce interference from carriers in the receiver passband

17. - G4B08

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

Select	Answer
A	Percentage of suppression of the carrier and undesired sideband for SSB
B	Linearity
C	Percentage of carrier phase shift
D	Percentage of frequency modulation

18. - G4C09

How can the effects of ground loops be minimized?

Select	Answer
A	Bond equipment enclosures together
B	Connect the AC neutral conductor to the ground wire
C	Connect all ground conductors in series
D	Avoid using lock washers and star washers when making ground connections

19. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.3455 MHz to 14.3485 MHz
B	14.347 MHz to 14.350 MHz
C	14.344 MHz to 14.347 MHz
D	14.347 MHz to 14.647 MHz

20. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	0.5 VDC
B	0.2 VDC
C	0.02 VDC
D	1.38 VDC

21. - G5A11

What letter is used to represent reactance?

Select	Answer
A	Y
B	Z
C	B
D	X

22. - G5B13

What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

Select	Answer
A	530 watts
B	2120 watts
C	1060 watts
D	1500 watts

23. - G5C02

What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

Select	Answer
A	Additional resistance must be added in parallel with the secondary to prevent overload
B	The input voltage is divided by 4
C	Additional resistance must be added in series with the primary to prevent overload
D	The input voltage is multiplied by 4

24. - G6A12

What is the primary purpose of a screen grid in a vacuum tube?

Select	Answer
A	To increase the control grid resistance
B	To reduce grid-to-plate capacitance
C	To decrease plate resistance
D	To increase efficiency

25. - G6B05

What is an advantage of using a ferrite core toroidal inductor?

Select	Answer
A	Most of the magnetic field is contained in the core
B	All these choices are correct
C	Large values of inductance may be obtained
D	The magnetic properties of the core may be optimized for a specific range of frequencies

26. - G7A03

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

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

27. - G7B01

What is the purpose of neutralizing an amplifier?

Select	Answer
A	To eliminate self-oscillations
B	To cut off the final amplifier during standby periods
C	To keep the carrier on frequency
D	To limit the modulation index

28. - G7C01

What circuit is used to select one of the sidebands from a balanced modulator?

Select	Answer
A	IF amplifier
B	RF amplifier
C	Filter
D	Carrier oscillator

29. - G8A08

Which of the following is an effect of overmodulation?

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

30. - G8B05

Which intermodulation products are closest to the original signal frequencies?

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

31. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	Dot and dash
B	High and low
C	Mark and space
D	On and off

32. - G9A05

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

Select	Answer
A	Attenuation follows Marconi’s Law of Attenuation
B	Attenuation increases
C	Attenuation decreases
D	Attenuation is independent of frequency

33. - G9B08

How does the feed point impedance of a 1/2 wave dipole change as the feed point is moved from the center toward the ends?

Select	Answer
A	It is unaffected by the location of the feed point
B	It steadily increases
C	It steadily decreases
D	It peaks at about 1/8 wavelength from the end

34. - G9C08

What is meant by the “main lobe” of a directive antenna?

Select	Answer
A	The magnitude of the maximum vertical angle of radiation
B	The maximum voltage standing wave point on a radiating element
C	The direction of maximum radiated field strength from the antenna
D	The point of maximum current in a radiating antenna element

35. - G9D08

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

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