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. - G0A11

What precaution should be taken if you install an indoor transmitting antenna?

Select	Answer
A	Position the antenna along the edge of a wall to reduce parasitic radiation
B	Make sure the antenna is properly shielded
C	Make sure that MPE limits are not exceeded in occupied areas
D	Locate the antenna close to your operating position to minimize feed-line radiation

2. - G0B11

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

Select	Answer
A	Lightning grounds must be connected to all ungrounded wiring
B	They must be bonded to all buried water and gas lines
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. - G1A01

On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

Select	Answer
A	60 meters, 30 meters, 17 meters, and 12 meters
B	80 meters, 20 meters, 15 meters, and 10 meters
C	160 meters, 60 meters, 15 meters, and 12 meters
D	80 meters, 40 meters, 20 meters, and 15 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 foreign country has a formal third-party agreement filed with the FCC
C	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
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	1500 watts PEP output
B	1200 watts PEP output
C	200 watts PEP output
D	1000 watts PEP output

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	The applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
C	Contact the FCC to have the license reinstated
D	They must have a letter from the FCC showing they once held an amateur or commercial license

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 control operator of the interrogating station must hold an Amateur Extra class license
C	No third-party traffic may be transmitted
D	The station initiating the contact must be under local or remote control

8. - G2A08

What is the recommended way to break into a phone contact?

Select	Answer
A	Say “QRZ” several times, followed by your call sign
B	Say “CQ” followed by the call sign of either station
C	Say your call sign once
D	Say “Breaker Breaker”

9. - G2B03

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

Select	Answer
A	Switch to the opposite sideband
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	Decrease power and continue to transmit

10. - G2C03

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

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

11. - G2D05

Which of the following indicates that you are looking for an HF contact with any station?

Select	Answer
A	Repeat “CQ” a few times, followed by “this is,” then your call sign a few times, then pause to listen, repeat as necessary
B	Say “QTC” followed by “this is” and your call sign -- if no answer, change frequency and repeat
C	Sign your call sign once, followed by the words “listening for a call” -- if no answer, change frequency and repeat
D	Transmit an unmodulated carried for approximately 10 seconds, followed by “this is” and your call sign, and pause to listen -- repeat as necessary

12. - G2E02

What is VARA?

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

13. - G3A08

How can a geomagnetic storm affect HF propagation?

Select	Answer
A	Improve high-latitude HF propagation
B	Degrade ground wave propagation
C	Improve ground wave propagation
D	Degrade high-latitude HF propagation

14. - G3B08

What does MUF stand for?

Select	Answer
A	The Minimum Usable Frequency for communications between two points
B	The Maximum Usable Frequency during a 24-hour period
C	The Maximum Usable Frequency for communications between two points
D	The Minimum Usable Frequency during a 24-hour period

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

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

17. - G4B12

What effect can strong signals from nearby transmitters have on an antenna analyzer?

Select	Answer
A	Desensitization which can cause intermodulation products which interfere with impedance readings
B	All these choices are correct
C	Generation of harmonics which interfere with frequency readings
D	Received power that interferes with SWR readings

18. - G4C09

How can the effects of ground loops be minimized?

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

19. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.1765 MHz to 7.1795 MHz
B	7.178 MHz to 7.184 MHz
C	7.178 MHz to 7.181 MHz
D	7.175 MHz to 7.178 MHz

20. - G4E08

In what configuration are the individual cells in a solar panel connected together?

Select	Answer
A	Full-wave bridge
B	Series-parallel
C	Shunt
D	Bypass

21. - G5A10

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A Pi-network
B	A length of transmission line
C	All these choices are correct
D	A transformer

22. - G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

Select	Answer
A	The peak value
B	The RMS value
C	The peak-to-peak value
D	The reciprocal of the RMS value

23. - G5C01

What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

Select	Answer
A	Mutual capacitance
B	Displacement current coupling
C	Capacitive coupling
D	Mutual inductance

24. - G6A11

What happens when an inductor is operated above its self-resonant frequency?

Select	Answer
A	Its reactance increases
B	Catastrophic failure is likely
C	It becomes capacitive
D	Harmonics are generated

25. - G6B11

What is an SMA connector?

Select	Answer
A	A connector designed for serial multiple access signals
B	A small threaded connector suitable for signals up to several GHz
C	A type of push-on connector intended for high-voltage applications
D	A type-S to type-M adaptor

26. - G7A06

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

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

27. - G7B02

Which of these classes of amplifiers has the highest efficiency?

Select	Answer
A	Class B
B	Class C
C	Class A
D	Class AB

28. - G7C01

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

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

29. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

Select	Answer
A	Amplitude modulation
B	Frequency modulation
C	Power modulation
D	Phase modulation

30. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Symbol rate and bandwidth are not related
B	Higher symbol rates require wider bandwidth
C	Lower symbol rates require wider bandwidth
D	Bandwidth is half the symbol rate

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	Request retransmission of the packet
C	Packet was received without error
D	Entire file received correctly

32. - G9A11

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	Higher loss reduces SWR measured at the input to the line
B	Higher loss increases the accuracy of SWR measured at the input to the line
C	Higher loss increases SWR measured at the input to the line
D	Transmission line loss does not affect the SWR measurement

33. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	33 feet
B	16 feet
C	8 feet
D	24 feet

34. - G9C05

What is the primary effect of increasing boom length and adding directors to a Yagi antenna?

Select	Answer
A	Beamwidth increases
B	Gain increases
C	Front-to-back ratio decreases
D	Resonant frequency is lower

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	Gain varies logarithmically as a function of frequency
D	Element length and spacing vary logarithmically along the boom