US Amateur Radio - General (Element 3, 2015-2019) Practice Test

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US Amateur Radio - General (Element 3, 2015-2019) Practice Test

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1. - G1A12

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 record the call sign of the primary service station before operating on a frequency assigned to that station
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 are allowed to use the band only if they do not cause harmful interference to primary users
D	Amateur stations are allowed to use the band only during emergencies

2. - G1B08

When choosing a transmitting frequency, what should you do to comply with good amateur practice?

Select	Answer
A	Follow generally accepted band plans agreed to by the Amateur Radio community
B	Monitor the frequency before transmitting
C	All of these choices are correct
D	Insure that the frequency and mode selected are within your license class privileges

3. - G1C02

What is the maximum transmitting power an amateur station may use on the 12-meter band?

Select	Answer
A	200 watts PEP output
B	1500 watts PEP output
C	50 watts PEP output
D	An effective radiated power equivalent to 100 watts from a half-wave dipole

4. - G1D02

What license examinations may you administer when you are an accredited VE holding a General Class operator license?

Select	Answer
A	General only
B	General and Technician
C	Extra, General and Technician
D	Technician only

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	The control operator must have at least a General Class license
B	All of these choices are correct
C	Information must be exchanged in English
D	The foreign amateur station must be in a country with which the United States has a third party agreement

6. - G2A04

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

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

7. - G2B05

What is the customary minimum frequency separation between SSB signals under normal conditions?

Select	Answer
A	Approximately 3 kHz
B	Approximately 10 kHz
C	Between 150 and 500 Hz
D	Approximately 6 kHz

8. - G2C04

What does the Q signal "QRL?" mean?

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

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To coordinate repeaters for efficient and orderly spectrum usage
B	To encourage self-regulation and compliance with the rules by radio amateur operators
C	To conduct efficient and orderly amateur licensing examinations
D	To provide emergency and public safety communications

10. - G2E03

What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?

Select	Answer
A	Failure to establish a connection between stations
B	Frequent retries or timeouts
C	Long pauses in message transmission
D	All of these choices are correct

11. - G3A01

What is the significance of the sunspot number with regard to HF propagation?

Select	Answer
A	Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
B	A zero sunspot number indicate radio propagation is not possible on any band
C	All of these choices are correct.
D	Lower sunspot numbers generally indicate greater probability of sporadic E propagation

12. - G3B09

What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?

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

13. - G3C03

Why is the F2 region mainly responsible for the longest distance radio wave propagation?

Select	Answer
A	Because it does not absorb radio waves as much as other ionospheric regions
B	Because it is the highest ionospheric region
C	Because it is the densest ionospheric layer
D	All of these choices are correct

14. - G4A09

Why is a time delay sometimes included in a transmitter keying circuit?

Select	Answer
A	To allow time for a warning signal to be sent to other stations
B	To prevent stations from interfering with one another
C	To allow the transmitter power regulators to charge properly
D	To allow time for transmit-receive changeover operations to complete properly before RF output is allowed

15. - G4B09

Which of the following can be determined with a field strength meter?

Select	Answer
A	The presence and amount of phase distortion of a transmitter
B	The radiation resistance of an antenna
C	The presence and amount of amplitude distortion of a transmitter
D	The radiation pattern of an antenna

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as 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	Mixing products are greatly reduced
D	The DSP filter is much more effective at VHF frequencies

17. - G4D02

Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

Select	Answer
A	It increases peak power
B	It increases average power
C	It reduces harmonic distortion
D	It reduces intermodulation distortion

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photon emission
B	Photon decomposition
C	Photovoltaic conversion
D	Photosynthesis

19. - G5A03

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

Select	Answer
A	Conductance
B	Reluctance
C	Reactance
D	Admittance

20. - G5B05

How many watts are dissipated when a current of 7.0 milliamperes flows through 1.25 kilohms resistance?

Select	Answer
A	Approximately 61 watts
B	Approximately 11 watts
C	Approximately 11 milliwatts
D	Approximately 61 milliwatts

21. - G5C10

What is the inductance of three 10 millihenry inductors connected in parallel?

Select	Answer
A	30 millihenrys
B	0.30 henrys
C	3.3 millihenrys
D	3.3 henrys

22. - G6A03

What is the approximate junction threshold voltage of a germanium diode?

Select	Answer
A	0.7 volts
B	0.3 volts
C	1.0 volts
D	0.1 volt

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Multi Megabyte Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Monolithic Microwave Integrated Circuit

24. - G7A06

What portion of the AC cycle is converted to DC by a full-wave rectifier?

Select	Answer
A	360 degrees
B	90 degrees
C	270 degrees
D	180 degrees

25. - G7B11

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

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

26. - G7C11

What is meant by the term "software defined radio" (SDR)?

Select	Answer
A	A radio that uses crystal filters designed using software
B	A computer model that can simulate performance of a radio to aid in the design process
C	A radio that provides computer interface for automatic logging of band and frequency
D	A radio in which most major signal processing functions are performed by software

27. - G8A02

What is the name of the process that changes the phase angle of an RF wave to convey information?

Select	Answer
A	Phase modulation
B	Radian inversion
C	Phase convolution
D	Angle convolution

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Phase inverting
C	Cancellation
D	Heterodyning

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Varicode Error Correction is used to ensure accurate message reception
B	Higher power is needed as compared to RTTY for similar error rates
C	Upper case letters use longer Varicode signals and thus slow down transmission
D	Upper case letters make the signal stronger

30. - G9A07

What must be done to prevent standing waves on an antenna feed line?

Select	Answer
A	The feed line must be cut to a length equal to an odd number of electrical quarter wavelengths
B	The antenna feed point impedance must be matched to the characteristic impedance of the feed line
C	The feed line must be cut to a length equal to an even number of physical half wavelengths
D	The antenna feed point must be at DC ground potential

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It decreases
B	It increases
C	It reaches a maximum at an angle of 45 degrees
D	It stays the same

32. - G9C10

Which of the following is a Yagi antenna design variable that could be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth?

Select	Answer
A	All of these choices are correct
B	The number of elements on the boom
C	The spacing of each element along the boom
D	The physical length of the boom

33. - G9D08

Why is a Beverage antenna not used for transmitting?

Select	Answer
A	All of these choices are correct
B	Its impedance is too low for effective matching
C	It has high losses compared to other types of antennas
D	It has poor directivity

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	Perform a routine RF exposure evaluation
B	All of these choices are correct
C	Post a copy of OET Bulletin 65 in the station
D	Post a copy of FCC Part 97.13 in the station

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	They must be bonded together with all other grounds
B	They must be bonded to all buried water and gas lines
C	Lightning grounds must be connected to all ungrounded wiring
D	Bends in ground wires must be made as close as possible to a right angle