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. - G0A03

How can you determine that your station complies with FCC RF exposure regulations?

Select	Answer
A	By measurement of field strength using calibrated equipment
B	By calculation based on FCC OET Bulletin 65
C	By calculation based on computer modeling
D	All these choices are correct

2. - G0B09

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

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

3. - G1A01

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

Select	Answer
A	80 meters, 20 meters, 15 meters, and 10 meters
B	80 meters, 40 meters, 20 meters, and 15 meters
C	60 meters, 30 meters, 17 meters, and 12 meters
D	160 meters, 60 meters, 15 meters, and 12 meters

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. - G1C11

What measurement is specified by FCC rules that regulate maximum power?

Select	Answer
A	PEP output from the transmitter
B	PEP input to the antenna
C	RMS output from the transmitter
D	RMS input to the antenna

6. - G1D06

Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with “AG” after their call sign?

Select	Answer
A	Whenever they operate using Technician frequency privileges
B	A special identifier is not required if their General class license application has been filed with the FCC
C	Whenever they operate using General class frequency privileges
D	Whenever they operate on any amateur frequency

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	The station initiating the contact must be under local or remote control
D	No third-party traffic may be transmitted

8. - G2A04

Which mode is most commonly used for voice communications on the 17- and 12-meter bands?

Select	Answer
A	Upper sideband
B	Lower sideband
C	Double sideband
D	Suppressed sideband

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	5 Hz to 50 Hz
B	Approximately 6 kHz
C	150 Hz to 500 Hz
D	2 kHz to 3 kHz

10. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	The fastest speed at which you are comfortable copying, but no slower than the CQ
B	At the standard calling speed of 10 wpm
C	At the standard calling speed of 5 wpm
D	The fastest speed at which you are comfortable copying, but no faster than the CQ

11. - G2D01

What is the Volunteer Monitor Program?

Select	Answer
A	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
B	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
C	Amateur volunteers who conduct amateur licensing examinations
D	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters

12. - G2E07

Which of the following is required when using FT8?

Select	Answer
A	A vertically polarized antenna
B	Receiver attenuator set to -12 dB
C	A special hardware modem
D	Computer time accurate to within approximately 1 second

13. - G3A07

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

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

14. - G3B10

What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the E region?

Select	Answer
A	2,500 miles
B	1,200 miles
C	12,000 miles
D	180 miles

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

16. - G4A01

What is the purpose of the notch filter found on many HF transceivers?

Select	Answer
A	To restrict the transmitter voice bandwidth
B	To reduce interference from carriers in the receiver passband
C	To remove interfering splatter generated by signals on adjacent frequencies
D	To eliminate receiver interference from impulse noise sources

17. - G4B05

Why do voltmeters have high input impedance?

Select	Answer
A	It improves the frequency response
B	It decreases the loading on circuits being measured
C	It improves the resolution of the readings
D	It allows for higher voltages to be safely measured

18. - G4C06

What is a possible effect of a resonant ground connection?

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

19. - G4D10

How close to the lower edge of a band’s phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

Select	Answer
A	At least 1 kHz above the edge of the segment
B	At least 1 kHz below the edge of the segment
C	At least 3 kHz below the edge of the segment
D	At least 3 kHz above the edge of the segment

20. - G4E10

Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?

Select	Answer
A	To prevent overload by regulating the charging voltage
B	To prevent discharge of the battery through the panel during times of low or no illumination
C	To prevent damage to the battery due to excessive voltage at high illumination levels
D	To limit the current flowing from the panel to a safe value

21. - G5A03

Which of the following is opposition to the flow of alternating current in an inductor?

Select	Answer
A	Admittance
B	Conductance
C	Reactance
D	Reluctance

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 reciprocal of the RMS value
D	The peak-to-peak value

23. - G5C02

What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

Select	Answer
A	The input voltage is multiplied by 4
B	Additional resistance must be added in series with the primary to prevent overload
C	Additional resistance must be added in parallel with the secondary to prevent overload
D	The input voltage is divided by 4

24. - G6A06

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

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

25. - G6B05

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

Select	Answer
A	The magnetic properties of the core may be optimized for a specific range of frequencies
B	Most of the magnetic field is contained in the core
C	Large values of inductance may be obtained
D	All these choices are correct

26. - G7A08

Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	Faster switching time makes higher output voltage possible
B	Inherently more stable
C	High-frequency operation allows the use of smaller components
D	Fewer circuit components are required

27. - G7B01

What is the purpose of neutralizing an amplifier?

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

28. - G7C07

What term specifies a filter’s attenuation inside its passband?

Select	Answer
A	Return loss
B	Q
C	Insertion loss
D	Ultimate rejection

29. - G8A13

What is a link budget?

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

30. - G8B02

What is the term for interference from a signal at twice the IF frequency from the desired signal?

Select	Answer
A	Quadrature response
B	Mixer interference
C	Intermediate interference
D	Image response

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	More nodes reduce overall microwave out of band interference
D	Links between two nodes in a network may have different frequencies and bandwidths

32. - G9A10

What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

Select	Answer
A	5:1
B	2:1
C	1:5
D	1:2

33. - G9B01

What is a characteristic of a random-wire HF antenna connected directly to the transmitter?

Select	Answer
A	It is more effective on the lower HF bands than on the higher bands
B	Station equipment may carry significant RF current
C	It produces only vertically polarized radiation
D	It must be longer than 1 wavelength

34. - G9C12

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

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

35. - G9D07

Which of the following describes a log-periodic antenna?

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