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. - G1A04

Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges?

Select	Answer
A	11 meters
B	12 meters
C	60 meters
D	30 meters

2. - G1B03

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

Select	Answer
A	Identifying net frequencies
B	Observation of propagation and reception
C	Automatic identification of repeaters
D	Transmission of bulletins of general interest to Amateur Radio licensees

3. - G1C10

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

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

4. - G1D01

Who may receive credit for the elements represented by an expired amateur radio license?

Select	Answer
A	Anyone who held an FCC issued amateur radio license that has been expired for not less than 5 years and not more than 15 years
B	Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC
C	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
D	Any person who can demonstrate that they once held an FCC issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is a licensed amateur
B	The third party is not a U.S. citizen
C	The third party's amateur license has been revoked and not reinstated
D	The third party is speaking in a language other than English

6. - G2A05

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

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

7. - G2B03

If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?

Select	Answer
A	Increase power to overcome interference
B	Report the interference to your local Amateur Auxiliary Coordinator
C	As a common courtesy, move your contact to another frequency
D	Tell the interfering stations to change frequency

8. - G2C08

What prosign is sent to indicate the end of a formal message when using CW?

Select	Answer
A	SK
B	BK
C	KN
D	AR

9. - G2D10

What is QRP operation?

Select	Answer
A	Low power transmit operation
B	Transmission using Quick Response Protocol
C	Traffic relay procedure net operation
D	Remote piloted model control

10. - G2E05

What is the standard sideband used to generate a JT65 or JT9 digital signal when using AFSK in any amateur band?

Select	Answer
A	USB
B	SSB
C	DSB
D	LSB

11. - G3A16

What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?

Select	Answer
A	Improved HF long path propagation
B	Auroras that can reflect VHF signals
C	Reduced long delayed echoes
D	Higher signal strength for HF signals passing through the polar regions

12. - G3B05

What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

Select	Answer
A	They are bent back to the Earth
B	They pass through the ionosphere
C	They are bent and trapped in the ionosphere to circle the Earth
D	They are amplified by interaction with the ionosphere

13. - G3C13

What is Near Vertical Incidence Sky-wave (NVIS) propagation?

Select	Answer
A	Long path HF propagation at sunrise and sunset
B	Propagation near the MUF
C	Double hop propagation near the LUF
D	Short distance MF or HF propagation using high elevation angles

14. - G4A05

What is a reason to use Automatic Level Control (ALC) with an RF power amplifier?

Select	Answer
A	To reduce harmonic radiation
B	To balance the transmitter audio frequency response
C	To reduce distortion due to excessive drive
D	To increase overall efficiency

15. - G4B05

Why is high input impedance desirable for a voltmeter?

Select	Answer
A	It improves the frequency response
B	It decreases the loading on circuits being measured
C	It decreases battery consumption in the meter
D	It improves the resolution of the readings

16. - G4C06

What effect can be caused by a resonant ground connection?

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

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 reduces intermodulation distortion
C	It increases average power
D	It reduces harmonic distortion

18. - G4E11

Which of the following is a disadvantage of using wind as the primary source of power for an emergency station?

Select	Answer
A	All of these choices are correct
B	The voltage and current ratings of such systems are not compatible with amateur equipment
C	A large energy storage system is needed to supply power when the wind is not blowing
D	The conversion efficiency from mechanical energy to electrical energy is less than 2 percent

19. - G5A13

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	A Pi-network
B	A length of transmission line
C	A transformer
D	All of these choices are correct

20. - G5B02

How does the total current relate to the individual currents in each branch of a purely resistive parallel circuit?

Select	Answer
A	It is the sum of the reciprocal of each individual voltage drop
B	It equals the sum of the currents through each branch
C	It equals the average of each branch current
D	It decreases as more parallel branches are added to the circuit

21. - G5C15

What is the total resistance of a 10 ohm, a 20 ohm, and a 50 ohm resistor connected in parallel?

Select	Answer
A	0.17 ohms
B	5.9 ohms
C	10000 ohms
D	80 ohms

22. - G6A18

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	All of these choices are correct
C	Most of the magnetic field is contained in the core
D	Large values of inductance may be obtained

23. - G6B04

What is meant by the term ROM?

Select	Answer
A	Random Operational Memory
B	Read Only Memory
C	Resistor Operated Memory
D	Resistant to Overload Memory

24. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 7
B	Symbol 2
C	Symbol 11
D	Symbol 1

25. - G7B02

Which of the following is an advantage of using the binary system when processing digital signals?

Select	Answer
A	Binary "ones" and "zeros" are easy to represent by an "on" or "off" state
B	The binary number system is most accurate
C	Binary numbers are more compatible with analog circuitry
D	All of these choices are correct

26. - G7C11

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

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

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

Select	Answer
A	Symbol rate and bandwidth are not related
B	Bandwidth is always half the symbol rate
C	Higher symbol rates require wider bandwidth
D	Lower symbol rates require wider bandwidth

29. - G8C03

What part of a data packet contains the routing and handling information?

Select	Answer
A	Preamble
B	Directory
C	Header
D	Footer

30. - G9A02

What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

Select	Answer
A	500 and 750 ohms
B	80 and 100 ohms
C	25 and 30 ohms
D	50 and 75 ohms

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

32. - G9C16

How does the gain of a two-element delta-loop beam compare to the gain of a two-element quad antenna?

Select	Answer
A	About the same
B	2.54 dB higher
C	3 dB higher
D	3 dB lower

33. - G9D09

Which of the following is an application for a Beverage antenna?

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

34. - G0A04

What does "time averaging" mean in reference to RF radiation exposure?

Select	Answer
A	The total RF exposure averaged over a certain time
B	The average time it takes RF radiation to have any long-term effect on the body
C	The total time of the exposure
D	The average amount of power developed by the transmitter over a specific 24 hour period

35. - G0B05

Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device?

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

Figure G7-1