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

2. - G0B09

Which of the following is true of an emergency generator installation?

Select	Answer
A	All these choices are correct
B	Fuel should be stored near the generator for rapid refueling in case of an emergency
C	The generator should be operated in a well-ventilated area
D	The generator must be insulated from ground

3. - G1A09

Which of the following frequencies is within the General class portion of the 15-meter band?

Select	Answer
A	18155 kHz
B	24900 kHz
C	21300 kHz
D	14250 kHz

4. - G1B06

Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?

Select	Answer
A	Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity
B	Under no circumstances, FCC rules take priority
C	At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC
D	Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure

5. - G1C09

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

Select	Answer
A	ERP of 100 watts PEP with respect to an isotropic antenna
B	10 watts RMS
C	ERP of 100 watts PEP with respect to a dipole
D	1500 watts PEP

6. - G1D02

What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?

Select	Answer
A	General and Technician
B	Technician only
C	None, only Amateur Extra class licensees may be accredited
D	Amateur Extra, General, and Technician

7. - G1E03

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

Select	Answer
A	The interrogating transmission must be made by another automatically controlled station
B	The station initiating the contact must be under local or remote control
C	No third-party traffic may be transmitted
D	The control operator of the interrogating station must hold an Amateur Extra class license

8. - G2A12

What control is typically adjusted for proper ALC setting on a single sideband transceiver?

Select	Answer
A	Transmit audio or microphone gain
B	RF clipping level
C	Attenuator level
D	Antenna inductance or capacitance

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. - G2C06

What does the term “zero beat” mean in CW operation?

Select	Answer
A	Operating split to avoid interference on frequency
B	Matching the speed of the transmitting station
C	Sending without error
D	Matching the transmit frequency to the frequency of a received 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 calibrate their frequency display
D	To allow each station to operate according to conditions

12. - G2E11

What is the primary purpose of an Amateur Radio Emergency Data Network (AREDN) mesh network?

Select	Answer
A	To provide DX spotting reports to aid contesters and DXers
B	To provide high-speed data services during an emergency or community event
C	To provide real time propagation data by monitoring amateur radio transmissions worldwide
D	To provide FM repeater coverage in remote areas

13. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	Only at the minimum point
B	At any point
C	At the summer solstice
D	Only at the maximum point

14. - G3B02

What factors affect the MUF?

Select	Answer
A	Time of day and season
B	All these choices are correct
C	Path distance and location
D	Solar radiation and ionospheric disturbances

15. - G3C11

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

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

16. - G4A12

Which of the following is a common use of the dual-VFO feature on a transceiver?

Select	Answer
A	To allow transmitting on two frequencies at once
B	To permit full duplex operation -- that is, transmitting and receiving at the same time
C	To improve frequency accuracy by allowing variable frequency output (VFO) operation
D	To transmit on one frequency and listen on another

17. - G4B06

What is an advantage of a digital multimeter as compared to an analog multimeter?

Select	Answer
A	Better for measuring computer circuits
B	Higher precision
C	Faster response
D	Less prone to overload

18. - G4C06

What is a possible effect of a resonant ground connection?

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

19. - G4D04

What does an S meter measure?

Select	Answer
A	Carrier suppression
B	Transmitter power output
C	Impedance
D	Received signal strength

20. - G4E04

Why should DC power for a 100-watt HF transceiver not be supplied by a vehicle’s auxiliary power socket?

Select	Answer
A	The socket is not wired with an RF-shielded power cable
B	The DC polarity of the socket is reversed from the polarity of modern HF transceivers
C	The socket’s wiring may be inadequate for the current drawn by the transceiver
D	Drawing more than 50 watts from this socket could cause the engine to overheat

21. - G5A02

What is reactance?

Select	Answer
A	Reinforcement of the flow of direct current caused by resistance
B	Opposition to the flow of alternating current caused by capacitance or inductance
C	Reinforcement of the flow of alternating current caused by capacitance or inductance
D	Opposition to the flow of direct current caused by resistance

22. - G5B14

What is the output PEP of 500 volts peak-to-peak across a 50-ohm load?

Select	Answer
A	5000 watts
B	625 watts
C	8.75 watts
D	2500 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	25.5 volts
C	360 volts
D	120 volts

24. - G6A03

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

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

25. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Monolithic Microwave Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Metal Monolayer Integrated Circuit
D	Multi-Mode Integrated Circuit

26. - G7A13

Which symbol in Figure G7-1 represents a tapped inductor?

Select	Answer
A	Symbol 7
B	Symbol 6
C	Symbol 11
D	Symbol 1

27. - G7B04

In a Class A amplifier, what percentage of the time does the amplifying device conduct?

Select	Answer
A	50%
B	More than 50% but less than 100%
C	100%
D	Less than 50%

28. - G7C13

What term specifies a filter’s maximum ability to reject signals outside its passband?

Select	Answer
A	Rolloff
B	Ultimate rejection
C	Insertion loss
D	Notch depth

29. - G8A10

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

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

30. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	3 kHz
B	16 kHz
C	8 kHz
D	5 kHz

31. - G8C16

Which of the following provide digital voice modes?

Select	Answer
A	FT8, FT4, and FST4
B	Winlink, PACTOR II, and PACTOR III
C	WSPR, MFSK16, and EasyPAL
D	DMR, D-STAR, and SystemFusion

32. - G9A01

Which of the following factors determine the characteristic impedance of a parallel conductor feed line?

Select	Answer
A	The distance between the centers of the conductors and the length of the line
B	The frequency of the signal and the length of the line
C	The radius of the conductors and the frequency of the signal
D	The distance between the centers of the conductors and the radius of the conductors

33. - G9B02

Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Slope the radials upward
B	Lengthen the radials beyond one wavelength
C	Slope the radials downward
D	Coil the radials

34. - G9C07

What does “front-to-back ratio” mean in reference to a Yagi antenna?

Select	Answer
A	The power radiated in the major lobe compared to that in the opposite direction
B	The number of directors versus the number of reflectors
C	The ratio of forward gain to dipole gain
D	The relative position of the driven element with respect to the reflectors and directors

35. - G9D07

Which of the following describes a log-periodic antenna?

Select	Answer
A	SWR varies periodically as a function of boom length
B	Impedance varies periodically as a function of frequency
C	Element length and spacing vary logarithmically along the boom
D	Gain varies logarithmically as a function of frequency

Figure G7-1