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. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

Select	Answer
A	All these choices are correct
B	Post a copy of FCC Part 97.13 in the station
C	Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
D	Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas

2. - G0B11

Which of the following is required for lightning protection ground rods?

Select	Answer
A	They must be bonded to all buried water and gas lines
B	Lightning grounds must be connected to all ungrounded wiring
C	They must be bonded together with all other grounds
D	Bends in ground wires must be made as close as possible to a right angle

3. - G1A11

When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is available to them?

Select	Answer
A	The lower frequency portion on frequencies below 7.3 MHz, and the upper portion on frequencies above 14.150 MHz
B	The upper frequency portion
C	The upper frequency portion on frequencies below 7.3 MHz, and the lower portion on frequencies above 14.150 MHz
D	The lower frequency portion

4. - G1B11

Who or what determines “good engineering and good amateur practice,” as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The control operator
B	The FCC
C	The ITU
D	The IEEE

5. - G1C03

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

Select	Answer
A	1.8 kHz
B	5.6 kHz
C	2.8 kHz
D	3 kHz

6. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	The Federal Communications Commission
B	The Wireless Telecommunications Bureau
C	The Universal Licensing System
D	A Volunteer Examiner Coordinator

7. - G1E06

The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?

Select	Answer
A	Region 1
B	Region 4
C	Region 2
D	Region 3

8. - G2A09

Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?

Select	Answer
A	Because it is fully compatible with an AM detector
B	Lower sideband is more efficient than upper sideband at these frequencies
C	Lower sideband is the only sideband legal on these frequency bands
D	It is commonly accepted amateur practice

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?

Select	Answer
A	150 Hz to 500 Hz
B	5 Hz to 50 Hz
C	1 kHz to 3 kHz
D	3 kHz to 6 kHz

10. - G2C03

What does it mean when a CW operator sends “KN” at the end of a transmission?

Select	Answer
A	No US stations should call
B	Operating full break-in
C	Closing station now
D	Listening only for a specific station or stations

11. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows true bearings and distances from a specific location
B	A map that shows accurate land masses
C	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
D	A map that shows the angle at which an amateur satellite crosses the equator

12. - G2E04

Which of the following is good practice when choosing a transmitting frequency to answer a station calling CQ using FT8?

Select	Answer
A	Find a clear frequency during the alternate time slot to the calling station
B	Always call on the station’s frequency
C	Find a clear frequency during the same time slot as the calling station
D	Call on any frequency in the waterfall except the station’s frequency

13. - G3A01

How does a higher sunspot number affect HF propagation?

Select	Answer
A	Lower sunspot numbers generally indicate greater probability of sporadic E propagation
B	A zero sunspot number indicates undisturbed conditions
C	A zero sunspot number indicates that radio propagation is not possible on any band
D	Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies

14. - G3B11

What happens to HF propagation when the LUF exceeds the MUF?

Select	Answer
A	HF communications over the path are enhanced
B	Double-hop propagation along the path is more common
C	Propagation over the path on all HF frequencies is enhanced
D	Propagation via ordinary skywave communications is not possible over that path

15. - G3C05

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

Select	Answer
A	The D region absorbs signals at these frequencies during daylight hours
B	The F region absorbs signals at these frequencies during daylight hours
C	The F region is unstable during daylight hours
D	The E region is unstable during daylight hours

16. - G4A02

What is the benefit of using the opposite or “reverse” sideband when receiving CW?

Select	Answer
A	Accidental out-of-band operation can be prevented
B	More stations can be accommodated within a given signal passband
C	It may be possible to reduce or eliminate interference from other signals
D	Interference from impulse noise will be eliminated

17. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	Antenna front-to-back ratio
B	Standing wave ratio
C	RF interference
D	Radio wave propagation

18. - G4C06

What is a possible effect of a resonant ground connection?

Select	Answer
A	A ground loop
B	Overheating of ground straps
C	High RF voltages on the enclosures of station equipment
D	Corrosion of the ground rod

19. - G4D05

How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

Select	Answer
A	It is 20 times less powerful
B	It is 20 times more powerful
C	It is 100 times more powerful
D	It is 10 times less powerful

20. - G4E07

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

Select	Answer
A	The control computers
B	All these choices are correct
C	The battery charging system
D	The fuel delivery system

21. - G5A04

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

Select	Answer
A	Reluctance
B	Admittance
C	Conductance
D	Reactance

22. - G5B09

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

Select	Answer
A	24 volts
B	34 volts
C	12 volts
D	8.5 volts

23. - G5C08

What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

Select	Answer
A	3,583 picofarads
B	576.9 nanofarads
C	1,733 picofarads
D	10.750 nanofarads

24. - G6A06

Why should wire-wound resistors not be used in RF circuits?

Select	Answer
A	The resistor’s tolerance value would not be adequate
B	The resistor’s internal capacitance would detune the circuit
C	The resistor could overheat
D	The resistor’s inductance could make circuit performance unpredictable

25. - G6B08

How is an LED biased when emitting light?

Select	Answer
A	Forward biased
B	Reverse biased
C	In the tunnel-effect region
D	At the Zener voltage

26. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 2
B	Symbol 11
C	Symbol 7
D	Symbol 1

27. - G7B07

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

Select	Answer
A	A circulator and a filter operating in a feed-forward loop
B	A filter and an amplifier operating in a feedback loop
C	An amplifier and a divider
D	A frequency multiplier and a mixer

28. - G7C12

What is the frequency above which a low-pass filter’s output power is less than half the input power?

Select	Answer
A	Neper frequency
B	Rolloff frequency
C	Notch frequency
D	Cutoff frequency

29. - G8A13

What is a link budget?

Select	Answer
A	The difference between transmit power and receiver sensitivity
B	The sum of antenna gains minus system losses
C	The financial costs associated with operating a radio link
D	The sum of transmit power and antenna gains minus system losses as seen at the receiver

30. - G8B11

What combination of a mixer’s Local Oscillator (LO) and RF input frequencies is found in the output?

Select	Answer
A	The arithmetic product
B	The sum and difference
C	The ratio
D	The average

31. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?

Select	Answer
A	Encoding reverts to the default character set
B	The connection is dropped
C	Packets will be routed incorrectly
D	The checksum overflows

32. - G9A05

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

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

33. - G9B05

How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?

Select	Answer
A	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
B	If the antenna is too high, the pattern becomes unpredictable
C	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
D	Antenna height has no effect on the pattern

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 3 dB higher
B	Approximately 9 dB higher
C	Approximately 1.5 dB higher
D	Approximately 6 dB higher

35. - G9D09

What is the primary use of a Beverage antenna?

Select	Answer
A	Portable direction finding at lower HF frequencies
B	Portable direction finding at higher HF frequencies
C	Directional receiving for MF and low HF bands
D	Directional transmitting for low HF bands

Figure G7-1