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

2. - G0B05

Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?

Select	Answer
A	Overvoltage on the hot wires
B	All these choices are correct
C	Current flowing from one or more of the hot wires to the neutral wire
D	Current flowing from one or more of the hot wires directly to ground

3. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	12 meters
B	17 meters
C	30 meters
D	160 meters

4. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Automatic identification of repeaters
B	All these choices are correct
C	Observation of propagation and reception
D	Transmission of bulletins of general interest to amateur radio licensees

5. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

Select	Answer
A	1200 baud
B	300 baud
C	19.6 kilobaud
D	56 kilobaud

6. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	30 days
B	For as long as your current license is valid
C	180 days
D	365 days

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

8. - G2A02

Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?

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

9. - G2B03

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

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

10. - G2C07

When sending CW, what does a “C” mean when added to the RST report?

Select	Answer
A	Chirpy or unstable signal
B	100 percent copy
C	Report was read from an S meter rather than estimated
D	Key clicks

11. - G2D11

Why are signal reports typically exchanged at the beginning of an HF contact?

Select	Answer
A	To allow each station to calibrate their frequency display
B	To allow each station to operate according to conditions
C	To follow standard radiogram structure
D	To be sure the contact will count for award programs

12. - G2E02

What is VARA?

Select	Answer
A	A digital protocol used with Winlink
B	A DX spotting system using a network of software defined radios
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 ground wave propagation
B	Improve high-latitude HF propagation
C	Degrade ground wave propagation
D	Degrade high-latitude HF propagation

14. - G3B06

What usually happens to radio waves with frequencies below the LUF?

Select	Answer
A	They pass through the ionosphere
B	They are refracted and trapped in the ionosphere to circle Earth
C	They are refracted back to Earth
D	They are attenuated before reaching the destination

15. - G3C04

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

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

16. - G4A02

What is the benefit of using the opposite or “reverse” sideband when receiving CW?

Select	Answer
A	Interference from impulse noise will be eliminated
B	Accidental out-of-band operation can be prevented
C	It may be possible to reduce or eliminate interference from other signals
D	More stations can be accommodated within a given signal passband

17. - G4B09

When is an analog multimeter preferred to a digital multimeter?

Select	Answer
A	When adjusting circuits for maximum or minimum values
B	When testing logic circuits
C	When high precision is desired
D	When measuring the frequency of an oscillator

18. - G4C06

What is a possible effect of a resonant ground connection?

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

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 2 times
B	Approximately 8 times
C	Approximately 4 times
D	Approximately 1.5 times

20. - G4E08

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

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

21. - G5A02

What is reactance?

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

22. - G5B10

What percentage of power loss is equivalent to a loss of 1 dB?

Select	Answer
A	10.9 percent
B	25.9 percent
C	20.6 percent
D	12.2 percent

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

24. - G6A02

What is an advantage of batteries with low internal resistance?

Select	Answer
A	High discharge current
B	Rapid recharge
C	High voltage
D	Long life

25. - G6B12

Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?

Select	Answer
A	Type N
B	PL-259
C	BNC
D	RCA Phono

26. - G7A12

Which symbol in Figure G7-1 represents a solid core transformer?

Select	Answer
A	Symbol 6
B	Symbol 7
C	Symbol 1
D	Symbol 4

27. - G7B11

For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

Select	Answer
A	AM
B	FM
C	All these choices are correct
D	SSB

28. - G7C06

Which of the following is an advantage of a digital signal processing (DSP) filter compared to an analog filter?

Select	Answer
A	Fewer digital components are required
B	A wide range of filter bandwidths and shapes can be created
C	The DSP filter is much more effective at VHF frequencies
D	Mixing products are greatly reduced

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

30. - G8B08

Why is it important to know the duty cycle of the mode you are using when transmitting?

Select	Answer
A	Some modes have high duty cycles that could exceed the transmitter’s average power rating
B	To allow time for the other station to break in during a transmission
C	To aid in tuning your transmitter
D	To prevent overmodulation

31. - G8C12

Which type of code is used for sending characters in a PSK31 signal?

Select	Answer
A	Viterbi
B	Volumetric
C	Binary
D	Varicode

32. - G9A05

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

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

33. - G9B04

What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

Select	Answer
A	It has a pair of lobes on one side of the antenna and a single lobe on the other side
B	It is a figure-eight at right angles to the antenna
C	It is a figure-eight off both ends of the antenna
D	It is a circle (equal radiation in all directions)

34. - G9C08

What is meant by the “main lobe” of a directive antenna?

Select	Answer
A	The direction of maximum radiated field strength from the antenna
B	The point of maximum current in a radiating antenna element
C	The magnitude of the maximum vertical angle of radiation
D	The maximum voltage standing wave point on a radiating element

35. - G9D02

What is the feed point impedance of an end-fed half-wave antenna?

Select	Answer
A	Very low
B	Approximately 300 ohms
C	Very high
D	Approximately 50 ohms

Figure G7-1