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

2. - G0B02

According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?

Select	Answer
A	AWG number 16
B	AWG number 8
C	AWG number 12
D	AWG number 20

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	12 meters
C	60 meters
D	11 meters

4. - G1B08

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

Select	Answer
A	Only 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
B	Only 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
C	Only when the foreign country has a formal third-party agreement filed with the FCC
D	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications

5. - G1C06

What is the limit for transmitter power on the 1.8 MHz band?

Select	Answer
A	1200 watts PEP output
B	1500 watts PEP output
C	200 watts PEP output
D	1000 watts PEP output

6. - G1D04

Who must observe the administration of a Technician class license examination?

Select	Answer
A	At least three Volunteer Examiners of Technician class
B	At least three Volunteer Examiners of General class or higher
C	At least two Volunteer Examiners of General class or higher
D	At least two Volunteer Examiners of Technician class or higher

7. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?

Select	Answer
A	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
B	Only during an FCC-declared general state of communications emergency
C	Under no circumstances
D	Only if the 10-meter repeater control operator holds at least a General class license

8. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Single phase modulation
B	Frequency modulation
C	Double sideband
D	Single sideband

9. - G2B05

When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	150 Hz to 500 Hz
B	Approximately 6 kHz
C	5 Hz to 50 Hz
D	2 kHz to 3 kHz

10. - G2C04

What does the Q signal “QRL?” mean?

Select	Answer
A	“Are you busy?” or “Is this frequency in use?”
B	“Will you keep the frequency clear?”
C	“Are you listening only for a specific station?”
D	“Are you operating full break-in?” or “Can you operate full break-in?”

11. - G2D07

Which of the following are examples of the NATO Phonetic Alphabet?

Select	Answer
A	Able, Baker, Charlie, Dog
B	America, Boston, Canada, Denmark
C	Adam, Boy, Charles, David
D	Alpha, Bravo, Charlie, Delta

12. - G2E02

What is VARA?

Select	Answer
A	A radio direction finding system used on VHF and UHF
B	A low signal-to-noise digital mode used for EME (moonbounce)
C	A DX spotting system using a network of software defined radios
D	A digital protocol used with Winlink

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. - G3B12

Which of the following is typical of the lower HF frequencies during the summer?

Select	Answer
A	World-wide propagation during daylight hours
B	High levels of atmospheric noise or static
C	Heavy distortion on signals due to photon absorption
D	Poor propagation at any time of day

15. - G3C11

Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

Select	Answer
A	The F2 region
B	The E region
C	The D region
D	The F1 region

16. - G4A04

What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier’s TUNE control?

Select	Answer
A	No change will be observed
B	A pronounced peak
C	A pronounced dip
D	A slow, rhythmic oscillation

17. - G4B05

Why do voltmeters have high input impedance?

Select	Answer
A	It decreases the loading on circuits being measured
B	It improves the frequency response
C	It allows for higher voltages to be safely measured
D	It improves the resolution of the readings

18. - G4C05

What is a possible cause of high voltages that produce RF burns?

Select	Answer
A	Flat braid rather than round wire has been used for the ground wire
B	The ground rod is resonant
C	Insulated wire has been used for the ground wire
D	The ground wire has high impedance on that frequency

19. - G4D07

How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

Select	Answer
A	Approximately 1.5 times
B	Approximately 4 times
C	Approximately 2 times
D	Approximately 8 times

20. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To lower the radiation angle
B	To reduce radiation resistance
C	To increase the power handling capacity of a whip antenna
D	To electrically lengthen a physically short antenna

21. - G5A04

Which of the following is opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Conductance
B	Admittance
C	Reactance
D	Reluctance

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 11 milliwatts
B	Approximately 61 watts
C	Approximately 61 milliwatts
D	Approximately 11 watts

23. - G5C06

What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?

Select	Answer
A	40 volts
B	360 volts
C	120 volts
D	25.5 volts

24. - G6A03

What is the approximate forward threshold voltage of a germanium diode?

Select	Answer
A	0.7 volts
B	0.1 volt
C	0.3 volts
D	1.0 volts

25. - G6B07

Which of the following describes a type N connector?

Select	Answer
A	A low noise figure VHF connector
B	A small bayonet connector used for data circuits
C	A moisture-resistant RF connector useful to 10 GHz
D	A nickel plated version of the PL-259

26. - G7A06

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

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

27. - G7B11

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

Select	Answer
A	SSB
B	FM
C	AM
D	All these choices are correct

28. - G7C04

How is a product detector used?

Select	Answer
A	Used in test gear to detect spurious mixing products
B	Used in transmitter to perform frequency multiplication
C	Used in a single sideband receiver to extract the modulated signal
D	Used in an FM receiver to filter out unwanted sidebands

29. - G8A10

What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?

Select	Answer
A	The transmitter’s carrier is properly suppressed
B	Signal distortion caused by excessive drive or speech levels
C	The transmitter’s automatic level control (ALC) is properly adjusted
D	Signal distortion caused by insufficient collector current

30. - G8B05

Which intermodulation products are closest to the original signal frequencies?

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

31. - G8C05

In an ARQ mode, what is meant by a NAK response to a transmitted packet?

Select	Answer
A	Receiving station connected and ready for transmissions
B	Entire file received correctly
C	Packet was received without error
D	Request retransmission of the packet

32. - G9A05

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

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

33. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	As high as possible above the ground
B	On the surface or buried a few inches below the ground
C	At the center of the antenna
D	Parallel to the antenna element

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?

Select	Answer
A	Approximately 6 dB higher
B	Approximately 3 dB higher
C	Approximately 1.5 dB higher
D	Approximately 9 dB higher

35. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They have poor harmonic rejection
B	They must be used with an antenna tuner
C	They present low impedance on all design frequencies
D	They must be fed with open wire line