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

2. - G0B03

Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

Select	Answer
A	20 amperes
B	15 amperes
C	30 amperes
D	25 amperes

3. - G1A10

What portion of the 10-meter band is available for repeater use?

Select	Answer
A	The portion between 28.3 MHz and 28.5 MHz
B	The portion between 28.1 MHz and 28.2 MHz
C	The portion above 29.5 MHz
D	The entire band

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	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
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	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

5. - G1C04

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the manufacturer of your equipment and the antenna used
B	You must keep a record of the date, time, frequency, power level, and stations worked
C	You must keep a record of all third-party traffic
D	If you are using an antenna other than a dipole, you must keep a record of the gain of your antenna

6. - G1D11

What action is required to obtain a new General class license after a previously held license has expired and the two-year grace period has passed?

Select	Answer
A	There are no requirements other than being able to show a copy of the expired license
B	Contact the FCC to have the license reinstated
C	The applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
D	They must have a letter from the FCC showing they once held an amateur or commercial license

7. - G1E06

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

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

8. - G2A11

Generally, who should respond to a station in the contiguous 48 states calling “CQ DX”?

Select	Answer
A	Any stations outside the lower 48 states
B	Any caller is welcome to respond
C	Only stations in Germany
D	Only contest stations

9. - G2B03

What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?

Select	Answer
A	Decrease power and continue to transmit
B	Attempt to resolve the interference problem with the other stations in a mutually acceptable manner
C	Advise the interfering stations that you are on the frequency and that you have priority
D	Switch to the opposite sideband

10. - G2C09

What does the Q signal “QSL” mean?

Select	Answer
A	I have received and understood
B	We have already confirmed the contact
C	Send slower
D	We have worked before

11. - G2D04

Which of the following describes an azimuthal projection map?

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

12. - G2E01

Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?

Select	Answer
A	CW
B	LSB
C	USB
D	DSB

13. - G3A13

What does the A-index measure?

Select	Answer
A	The long-term stability of Earth’s geomagnetic field
B	The solar radio flux at Boulder, Colorado
C	The relative position of sunspots on the surface of the Sun
D	The amount of polarization of the Sun’s electric field

14. - G3B04

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

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

15. - G3C04

What does the term “critical angle” mean, as applied to radio wave propagation?

Select	Answer
A	The long path azimuth of a distant station
B	The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
C	The short path azimuth of a distant station
D	The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions

16. - G4A10

What is the function of an electronic keyer?

Select	Answer
A	Automatic generation of dots and dashes for CW operation
B	To allow time for switching the antenna from the receiver to the transmitter
C	Computer interface for PSK and RTTY operation
D	Automatic transmit/receive switching

17. - G4B08

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

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

18. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency circuits?

Select	Answer
A	Bypass inductor
B	Reverse-biased diode
C	Forward-biased diode
D	Bypass capacitor

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 8 times
C	Approximately 4 times
D	Approximately 2 times

20. - G4E05

Which of the following most limits an HF mobile installation?

Select	Answer
A	FCC rules limiting mobile output power on the 75-meter band
B	Efficiency of the electrically short antenna
C	The wire gauge of the DC power line to the transceiver
D	“Picket fencing”

21. - G5A02

What is reactance?

Select	Answer
A	Opposition to the flow of alternating current caused by capacitance or inductance
B	Reinforcement of the flow of alternating current caused by capacitance or inductance
C	Reinforcement of the flow of direct current caused by resistance
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	2500 watts
B	5000 watts
C	625 watts
D	8.75 watts

23. - G5C10

What is the inductance of three 10-millihenry inductors connected in parallel?

Select	Answer
A	3.3 millihenries
B	0.30 henries
C	30 millihenries
D	3.3 henries

24. - G6A12

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

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

25. - G6B05

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

Select	Answer
A	All these choices are correct
B	Most of the magnetic field is contained in the core
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. - G7A06

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

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

27. - G7B01

What is the purpose of neutralizing an amplifier?

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

28. - G7C05

Which of the following is characteristic of a direct digital synthesizer (DDS)?

Select	Answer
A	Extremely narrow tuning range
B	Variable output frequency with the stability of a crystal oscillator
C	Relatively high-power output
D	Pure sine wave output

29. - G8A12

What is QPSK modulation?

Select	Answer
A	Modulation using quadra-pole sideband keying to generate spread spectrum signals
B	Modulation using quasi-parallel to serial conversion to reduce bandwidth
C	Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits
D	Modulation using Fast Fourier Transforms to generate frequencies at the first, second, third, and fourth harmonics of the carrier frequency to improve noise immunity

30. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	60 kHz
B	5 kHz
C	101.75 Hz
D	416.7 Hz

31. - G8C09

Which is true of mesh network microwave nodes?

Select	Answer
A	Having more nodes increases signal strengths
B	If one node fails, a packet may still reach its target station via an alternate node
C	Links between two nodes in a network may have different frequencies and bandwidths
D	More nodes reduce overall microwave out of band interference

32. - G9A05

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

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

33. - G9B12

What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?

Select	Answer
A	21 feet
B	8 feet
C	11 feet
D	16 feet

34. - G9C10

Which of the following can be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth of a Yagi antenna?

Select	Answer
A	The physical length of the boom
B	The number of elements on the boom
C	All these choices are correct
D	The spacing of each element along the boom

35. - G9D05

What is an advantage of vertically stacking horizontally polarized Yagi antennas?

Select	Answer
A	It narrows the main lobe in elevation
B	It allows quick selection of vertical or horizontal polarization
C	It allows simultaneous vertical and horizontal polarization
D	It narrows the main lobe in azimuth