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. - G0A10

What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Select	Answer
A	All these choices are correct
B	Use an antenna with a higher front-to-back ratio
C	Change to a non-polarized antenna with higher gain
D	Take precautions to ensure that the antenna cannot be pointed in their direction when they are present

2. - G0B01

Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

Select	Answer
A	All wires
B	Only the neutral wire
C	Only the hot wires
D	Only the ground wire

3. - G1A09

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

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

4. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	20 watts PEP output
B	200 watts PEP output
C	10 watts PEP output
D	100 watts PEP output

5. - G1C07

What must be done before using a new digital protocol on the air?

Select	Answer
A	Type-certify equipment to FCC standards
B	Submit a rule-making proposal to the FCC describing the codes and methods of the technique
C	Obtain an experimental license from the FCC
D	Publicly document the technical characteristics of the protocol

6. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	The Universal Licensing System
B	The Federal Communications Commission
C	The Wireless Telecommunications Bureau
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 3
B	Region 2
C	Region 4
D	Region 1

8. - G2A08

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

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

9. - G2B10

Which of the following is good amateur practice for net management?

Select	Answer
A	All these choices are correct
B	Transmit the full net roster at the beginning of every session
C	Have a backup frequency in case of interference or poor conditions
D	Always use multiple sets of phonetics during check-in

10. - G2C10

What does the Q signal “QRN” mean?

Select	Answer
A	Stop sending
B	Zero beat my signal
C	I am troubled by static
D	Send more slowly

11. - G2D07

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

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

12. - G2E13

What is another name for a Winlink Remote Message Server?

Select	Answer
A	RJ-45
B	Printer/Server
C	Gateway
D	Terminal Node Controller

13. - G3A14

How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?

Select	Answer
A	HF communication is disturbed
B	VHF/UHF ducting is improved
C	HF communication is improved
D	VHF/UHF ducting is disturbed

14. - G3B04

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

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

15. - G3C09

What type of propagation allows signals to be heard in the transmitting station’s skip zone?

Select	Answer
A	Scatter
B	Chordal hop
C	Faraday rotation
D	Short-path

16. - G4A06

What is the purpose of an antenna tuner?

Select	Answer
A	Increase power transfer from the transmitter to the feed line
B	Reduce the SWR in the feed line to the antenna
C	All these choices are correct
D	Reduce the power dissipation in the feedline to the antenna

17. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	All these choices are correct
B	Antenna and feed line
C	Transmitter
D	Receiver

18. - G4C12

Why must all metal enclosures of station equipment be grounded?

Select	Answer
A	It ensures that hazardous voltages cannot appear on the chassis
B	It prevents a blown fuse in the event of an internal short circuit
C	It prevents signal overload
D	It ensures that the neutral wire is grounded

19. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.344 MHz to 14.347 MHz
B	14.3455 MHz to 14.3485 MHz
C	14.347 MHz to 14.647 MHz
D	14.347 MHz to 14.350 MHz

20. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	0.2 VDC
B	1.38 VDC
C	0.02 VDC
D	0.5 VDC

21. - G5A01

What happens when inductive and capacitive reactance are equal in a series LC circuit?

Select	Answer
A	Impedance is equal to the arithmetic mean of the inductance and capacitance
B	Impedance is equal to the geometric mean of the inductance and capacitance
C	Resonance causes impedance to be very high
D	Resonance causes impedance to be very low

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 11 watts
C	Approximately 61 milliwatts
D	Approximately 61 watts

23. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

Select	Answer
A	A capacitor in series
B	A capacitor in parallel
C	An inductor in parallel
D	An inductor in series

24. - G6A12

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

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

25. - G6B01

What determines the performance of a ferrite core at different frequencies?

Select	Answer
A	The composition, or “mix,” of materials used
B	The ratio of outer diameter to inner diameter
C	Its conductivity
D	Its thickness

26. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 5
B	Symbol 1
C	Symbol 4
D	Symbol 2

27. - G7B01

What is the purpose of neutralizing an amplifier?

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

28. - G7C14

The bandwidth of a band-pass filter is measured between what two frequencies?

Select	Answer
A	Cutoff and rolloff
B	Pole and zero
C	Upper and lower half-power
D	Image and harmonic

29. - G8A13

What is a link budget?

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

30. - G8B11

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

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

31. - G8C03

What part of a packet radio frame contains the routing and handling information?

Select	Answer
A	Directory
B	Trailer
C	Preamble
D	Header

32. - G9A02

What is the relationship between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	High SWR reduces the relative effect of transmission line loss
B	High SWR makes it difficult to measure transmission line loss
C	There is no relationship between transmission line loss and SWR
D	High SWR increases loss in a lossy transmission line

33. - G9B06

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

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

34. - G9C12

Which of the following is a characteristic of using a gamma match with a Yagi antenna?

Select	Answer
A	All these choices are correct
B	It is useful for matching multiband antennas
C	It does not require any inductors or capacitors
D	It does not require the driven element to be insulated from the boom

35. - G9D09

What is the primary use of a Beverage antenna?

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

Figure G7-1