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. - G0A12

What stations are subject to the FCC rules on RF exposure?

Select	Answer
A	Only stations with antennas lower than one wavelength above the ground
B	All commercial stations; amateur radio stations are exempt
C	All stations with a time-averaged transmission of more than one milliwatt
D	Only stations transmitting more than 500 watts PEP

2. - G0B09

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

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

3. - G1A10

What portion of the 10-meter band is available for repeater use?

Select	Answer
A	The portion above 29.5 MHz
B	The entire band
C	The portion between 28.3 MHz and 28.5 MHz
D	The portion between 28.1 MHz and 28.2 MHz

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	200 feet
D	50 feet

5. - G1C05

What is the limit for transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1500 watts PEP output
B	100 watts PEP output
C	2000 watts PEP output
D	1000 watts PEP output

6. - G1D09

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

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

7. - G1E04

Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	When a station is transmitting spread spectrum emissions
B	When using a band where the Amateur Service is secondary
C	When operating within one mile of an FCC Monitoring Station
D	All these choices are correct

8. - G2A03

Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?

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

9. - G2B01

Which of the following is true concerning access to frequencies?

Select	Answer
A	Except during emergencies, no amateur station has priority access to any frequency
B	QSOs in progress have priority
C	Contest operations should yield to non-contest use of frequencies
D	Nets have priority

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	“Will you keep the frequency clear?”
C	“Are you listening only for a specific station?”
D	“Are you busy?” or “Is this frequency in use?”

11. - G2D07

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

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

12. - G2E12

Which of the following describes Winlink?

Select	Answer
A	A form of Packet Radio
B	A wireless network capable of both VHF and HF band operation
C	An amateur radio wireless network to send and receive email on the internet
D	All of the above

13. - G3A05

What is the solar flux index?

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

14. - G3B07

What does LUF stand for?

Select	Answer
A	The Lowest Usable Frequency during a 24-hour period
B	Lowest Usable Frequency for communications to any point outside a 100-mile radius
C	Lowest Usable Frequency during the past 60 minutes
D	The Lowest Usable Frequency for communications between two specific 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	Propagation is via ducts in the F region, which absorb most of the energy
C	Only a small part of the signal energy is scattered into the skip zone
D	Propagation is via ground waves, which absorb most of the signal energy

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 power dissipation in the feedline to the antenna
C	Reduce the SWR in the feed line to the antenna
D	All these choices are correct

17. - G4B07

What signals are used to conduct a two-tone test?

Select	Answer
A	Two audio frequency range square wave signals of equal amplitude
B	Two swept frequency tones
C	Two non-harmonically related audio signals
D	Two audio signals of the same frequency shifted 90 degrees

18. - G4C07

Why should soldered joints not be used in lightning protection ground connections?

Select	Answer
A	A soldered joint will likely be destroyed by the heat of a lightning strike
B	Solder has too high a dielectric constant to provide adequate lightning protection
C	All these choices are correct
D	Solder flux will prevent a low conductivity connection

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

20. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

Select	Answer
A	Harmonic radiation may increase
B	Operating bandwidth may be very limited
C	Q of the antenna will be very low
D	Short antennas are more likely to cause distortion of transmitted signals

21. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ampere
B	Siemens
C	Ohm
D	Farad

22. - G5B11

What is the ratio of PEP to average power for an unmodulated carrier?

Select	Answer
A	0.707
B	1.414
C	2.00
D	1.00

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	10.750 nanofarads
C	1,733 picofarads
D	3,583 picofarads

24. - G6A12

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

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

25. - G6B02

What is meant by the term MMIC?

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

26. - G7A12

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

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

27. - G7B10

Which of the following describes a linear amplifier?

Select	Answer
A	Any RF power amplifier used in conjunction with an amateur transceiver
B	A Class C high efficiency amplifier
C	An amplifier in which the output preserves the input waveform
D	An amplifier used as a frequency multiplier

28. - G7C08

Which parameter affects receiver sensitivity?

Select	Answer
A	Input amplifier noise figure
B	All these choices are correct
C	Demodulator stage bandwidth
D	Input amplifier gain

29. - G8A06

Which of the following is characteristic of QPSK31?

Select	Answer
A	Its bandwidth is approximately the same as BPSK31
B	Its encoding provides error correction
C	All these choices are correct
D	It is sideband sensitive

30. - G8B02

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

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

31. - G8C13

What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?

Select	Answer
A	Insufficient modulation
B	Backscatter propagation
C	Overmodulation
D	Long path propagation

32. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Ohms per 1,000 feet
B	Ohms per 100 feet
C	Decibels per 1,000 feet
D	Decibels per 100 feet

33. - G9B04

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

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

34. - G9C07

What does “front-to-back ratio” mean in reference to a Yagi antenna?

Select	Answer
A	The power radiated in the major lobe compared to that in the opposite direction
B	The relative position of the driven element with respect to the reflectors and directors
C	The number of directors versus the number of reflectors
D	The ratio of forward gain to dipole gain

35. - G9D09

What is the primary use of a Beverage antenna?

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

Figure G7-1