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. - G1A07

Which of the following frequencies is within the General Class portion of the 20-meter phone band?

Select	Answer
A	14305 kHz
B	14405 kHz
C	14005 kHz
D	14105 kHz

2. - G1B11

How does the FCC require an amateur station to be operated in all respects not specifically covered by the Part 97 rules?

Select	Answer
A	In conformance with Amateur Radio custom
B	All of these choices are correct
C	In conformance with good engineering and good amateur practice
D	In conformance with the rules of the IARU

3. - G1C11

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

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

4. - G1D09

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

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

5. - G1E07

With which foreign countries is third party traffic prohibited, except for messages directly involving emergencies or disaster relief communications?

Select	Answer
A	Any country which is not a member of the International Amateur Radio Union (IARU)
B	Countries in ITU Region 2
C	Countries in ITU Region 1
D	Every foreign country, unless there is a third party agreement in effect with that country

6. - G2A01

Which sideband is most commonly used for voice communications on frequencies of 14 MHz or higher?

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

7. - G2B06

What is a practical way to avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Listen for 2 minutes before calling CQ
B	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response
C	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
D	Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign

8. - G2C05

What is the best speed to use when answering a CQ in Morse code?

Select	Answer
A	The fastest speed at which you are comfortable copying
B	At the standard calling speed of 5 wpm
C	The speed at which the CQ was sent
D	A slow speed until contact is established

9. - G2D09

What information is traditionally contained in a station log?

Select	Answer
A	Band and/or frequency of the contact
B	Call sign of station contacted and the signal report given
C	All of these choices are correct
D	Date and time of contact

10. - G2E01

Which mode is normally used when sending an RTTY signal via AFSK with an SSB transmitter?

Select	Answer
A	DSB
B	USB
C	CW
D	LSB

11. - G3A04

Which of the following are least reliable for long distance communications during periods of low solar activity?

Select	Answer
A	80 meters and 160 meters
B	15 meters, 12 meters and 10 meters
C	30 meters and 20 meters
D	60 meters and 40 meters

12. - G3B06

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

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

13. - G3C04

What does the term "critical angle" mean as used in radio wave propagation?

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

14. - G4A07

What condition can lead to permanent damage to a solid-state RF power amplifier?

Select	Answer
A	Shorting the input signal to ground
B	Insufficient drive power
C	Excessive drive power
D	Low input SWR

15. - G4B10

Which of the following can be determined with a directional wattmeter?

Select	Answer
A	RF interference
B	Radio wave propagation
C	Antenna front-to-back ratio
D	Standing wave ratio

16. - G4C13

Which of the following can perform automatic notching of interfering carriers?

Select	Answer
A	A noise limiter
B	Bandpass tuning
C	A Digital Signal Processor (DSP) filter
D	Balanced mixing

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.178 to 7.184 MHz
B	7.1765 to 7.1795 MHz
C	7.178 to 7.181 MHz
D	7.175 to 7.178 MHz

18. - G4E04

Why is it best NOT to draw the DC power for a 100 watt HF transceiver from a vehicle's auxiliary power socket?

Select	Answer
A	The socket is not wired with an RF-shielded power cable
B	The DC polarity of the socket is reversed from the polarity of modern HF transceivers
C	Drawing more than 50 watts from this socket could cause the engine to overheat
D	The socket's wiring may be inadequate for the current drawn by the transceiver

19. - G5A06

How does a capacitor react to AC?

Select	Answer
A	As the frequency of the applied AC increases, the reactance decreases
B	As the amplitude of the applied AC increases, the reactance increases
C	As the amplitude of the applied AC increases, the reactance decreases
D	As the frequency of the applied AC increases, the reactance increases

20. - G5B06

What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?

Select	Answer
A	353.5 watts
B	100 watts
C	1.4 watts
D	400 watts

21. - G5C18

What is the value in microfarads of a 4700 nanofarad (nF) capacitor?

Select	Answer
A	47,000 microfarads
B	4.7 microfarads
C	0.47 microfarads
D	47 microfarads

22. - G6A14

Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

Select	Answer
A	High capacitance for given volume
B	Tight tolerance
C	Comparatively low cost
D	High stability

23. - G6B09

Which of the following is a characteristic of a liquid crystal display?

Select	Answer
A	It offers a wide dynamic range
B	All of these choices are correct
C	It has a wide viewing angle
D	It requires ambient or back lighting

24. - G7A11

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

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

25. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The inductance and capacitance in the tank circuit
B	The number of stages in the counter
C	The number of stages in the divider
D	The time delay of the lag circuit

26. - G7C11

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

Select	Answer
A	A radio in which most major signal processing functions are performed by 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 that uses crystal filters designed using software

27. - G8A10

What is meant by the term flat-topping when referring to a single sideband phone transmission?

Select	Answer
A	The transmitter's carrier is properly suppressed
B	The transmitter's automatic level control (ALC) is properly adjusted
C	Signal distortion caused by insufficient collector current
D	Signal distortion caused by excessive drive

28. - G8B01

What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

Select	Answer
A	VFO
B	BFO
C	Mixer
D	Discriminator

29. - G8C03

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

Select	Answer
A	Footer
B	Preamble
C	Directory
D	Header

30. - G9A08

If the SWR on an antenna feed line is 5 to 1, and a matching network at the transmitter end of the feed line is adjusted to 1 to 1 SWR, what is the resulting SWR on the feed line?

Select	Answer
A	Between 1 to 1 and 5 to 1 depending on the reflected power at the transmitter
B	Between 1 to 1 and 5 to 1 depending on the characteristic impedance of the line
C	1 to 1
D	5 to 1

31. - G9B07

How does the feed point impedance of a 1/2 wave dipole antenna change as the antenna is lowered below 1/4 wave above ground?

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

32. - G9C13

Approximately how long is each side of the driven element of a quad antenna?

Select	Answer
A	1 wavelength
B	3/4 wavelength
C	1/4 wavelength
D	1/2 wavelength

33. - G9D03

At what height above ground is an NVIS antenna typically installed?

Select	Answer
A	Between 1/10 and 1/4 wavelength
B	As close to one wavelength as possible
C	Height is not critical as long as it is significantly more than 1/2 wavelength
D	As close to 1/2 wavelength as possible

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

35. - G0B08

What should be done by any person preparing to climb a tower that supports electrically powered devices?

Select	Answer
A	Notify the electric company that a person will be working on the tower
B	Make sure all circuits that supply power to the tower are locked out and tagged
C	All of these choices are correct
D	Unground the base of the tower

Figure G7-1