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. - G0B09

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

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

3. - G1A06

Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?

Select	Answer
A	Amateur stations must not cause harmful interference to primary users and must accept interference from primary users
B	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24-hour use of the band
C	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
D	Amateur stations may use the band only during emergencies

4. - G1B01

What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

Select	Answer
A	250 feet
B	100 feet
C	50 feet
D	200 feet

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

6. - G1D02

What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?

Select	Answer
A	Amateur Extra, General, and Technician
B	None, only Amateur Extra class licensees may be accredited
C	Technician only
D	General and Technician

7. - G1E11

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	Only in the non-phone Extra Class segments of the bands
B	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands
C	Anywhere in the 6-meter or shorter wavelength bands, and in limited segments of some of the HF bands
D	On any band segment where digital operation is permitted

8. - G2A05

Which mode of voice communication is most commonly used on the HF amateur bands?

Select	Answer
A	Single sideband
B	Double sideband
C	Frequency modulation
D	Single phase modulation

9. - G2B07

Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	All these choices are correct
B	Listen on the frequency for at least two minutes to be sure it is clear
C	Identify your station by transmitting your call sign at least 3 times
D	Follow the voluntary band plan

10. - G2C04

What does the Q signal “QRL?” mean?

Select	Answer
A	“Are you operating full break-in?” or “Can you operate full break-in?”
B	“Are you busy?” or “Is this frequency in use?”
C	“Are you listening only for a specific station?”
D	“Will you keep the frequency clear?”

11. - G2D11

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

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

12. - G2E08

In what segment of the 20-meter band are most digital mode operations commonly found?

Select	Answer
A	In the middle of the CW segment, near 14.100 MHz
B	At the top of the SSB phone segment, near 14.325 MHz
C	At the bottom of the slow-scan TV segment, near 14.230 MHz
D	Between 14.070 MHz and 14.100 MHz

13. - G3A05

What is the solar flux index?

Select	Answer
A	Another name for the American sunspot number
B	A measure of solar radiation with a wavelength of 10.7 centimeters
C	A measure of the highest frequency that is useful for ionospheric propagation between two points on Earth
D	A count of sunspots that is adjusted for solar emissions

14. - G3B08

What does MUF stand for?

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

15. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Signals are scattered from the magnetosphere, which is not a good reflector
B	Only a small part of the signal energy is scattered into the skip zone
C	Propagation is via ground waves, which absorb most of the signal energy
D	Propagation is via ducts in the F region, which absorb most of the energy

16. - G4A09

What is the purpose of delaying RF output after activating a transmitter’s keying line to an external amplifier?

Select	Answer
A	To allow time for the amplifier power supply to reach operating level
B	To allow time for the amplifier to switch the antenna between the transceiver and the amplifier output
C	To prevent key clicks on CW
D	To prevent transient overmodulation

17. - G4B08

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

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

18. - G4C03

What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?

Select	Answer
A	Distorted speech
B	A steady hum whenever the transmitter is on the air
C	On-and-off humming or clicking
D	Clearly audible speech

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	14.3455 MHz to 14.3485 MHz
B	14.344 MHz to 14.347 MHz
C	14.347 MHz to 14.350 MHz
D	14.347 MHz to 14.647 MHz

20. - G4E08

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

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

21. - G5A04

Which of the following is opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Reactance
B	Reluctance
C	Conductance
D	Admittance

22. - G5B10

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

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

23. - G5C08

What is the equivalent capacitance of two 5.0-nanofarad capacitors and one 750-picofarad capacitor connected in parallel?

Select	Answer
A	576.9 nanofarads
B	1,733 picofarads
C	3,583 picofarads
D	10.750 nanofarads

24. - G6A11

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

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

25. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Mode Modulated Integrated Circuit
B	Multi-Mode Integrated Circuit
C	Metal Monolayer Integrated Circuit
D	Monolithic Microwave Integrated Circuit

26. - G7A12

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

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

27. - G7B06

What is a shift register?

Select	Answer
A	An array of operational amplifiers used for tri-state arithmetic operations
B	A digital mixer
C	A clocked array of circuits that passes data in steps along the array
D	An analog mixer

28. - G7C04

How is a product detector used?

Select	Answer
A	Used in test gear to detect spurious mixing products
B	Used in a single sideband receiver to extract the modulated signal
C	Used in transmitter to perform frequency multiplication
D	Used in an FM receiver to filter out unwanted sidebands

29. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Excessive bandwidth
B	Insufficient bandwidth
C	Insufficient audio
D	Frequency drift

30. - G8B12

What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?

Select	Answer
A	Detection
B	Intermodulation
C	Rolloff
D	Heterodyning

31. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A code using SELCAL and LISTEN
B	A code using error detection and correction
C	A 5-bit code with additional start and stop bits
D	A 7-bit code with start, stop, and parity bits

32. - G9A02

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

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

33. - G9B07

How does the feed point impedance of a horizontal 1/2 wave dipole antenna change as the antenna height is reduced to 1/10 wavelength above ground?

Select	Answer
A	It peaks at about 1/8 wavelength above ground
B	It steadily increases
C	It is unaffected by the height above ground
D	It steadily decreases

34. - G9C11

What is a beta or hairpin match?

Select	Answer
A	A 1/4 wavelength section of 75-ohm coax in series with the feed point of a Yagi to provide impedance matching
B	A series capacitor selected to cancel the inductive reactance of a folded dipole antenna
C	A section of 300-ohm twin-lead transmission line used to match a folded dipole antenna
D	A shorted transmission line stub placed at the feed point of a Yagi antenna to provide impedance matching

35. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They must be fed with open wire line
B	They have poor harmonic rejection
C	They present low impedance on all design frequencies
D	They must be used with an antenna tuner

Figure G7-1