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	30 meters
B	60 meters
C	12 meters
D	11 meters

2. - G1B04

Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

Select	Answer
A	The FCC must have declared a state of emergency
B	All of these choices are correct
C	The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies
D	The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

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

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	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
C	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
D	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

5. - G1E09

What language must be used when identifying your station if you are using a language other than English in making a contact using phone emission?

Select	Answer
A	English only
B	Any language recognized by the United Nations
C	The language being used for the contact
D	English, Spanish, French, or German

6. - G2A04

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

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

7. - G2B12

When is an amateur station allowed to use any means at its disposal to assist another station in distress?

Select	Answer
A	At any time during an actual emergency
B	Only on authorized HF frequencies
C	At any time when transmitting in an organized net
D	Only when transmitting in RACES

8. - G2C01

Which of the following describes full break-in telegraphy (QSK)?

Select	Answer
A	An operator must activate a manual send/receive switch before and after every transmission
B	Transmitting stations can receive between code characters and elements
C	Automatic keyers are used to send Morse code instead of hand keys
D	Breaking stations send the Morse code prosign BK

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Hunters have an opportunity to transmit on non-amateur frequencies
B	Direction finding used to locate stations violating FCC Rules
C	Identification of out of band operation
D	Identification of different call signs

10. - G2E03

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

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

11. - G3A08

Which of the following effects can a geomagnetic storm have on radio propagation?

Select	Answer
A	Degraded high-latitude HF propagation
B	Improved chances of UHF ducting
C	Improved ground-wave propagation
D	Improved high-latitude HF propagation

12. - G3B03

Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select	Answer
A	Select a frequency just above the LUF
B	Select a frequency just above the critical frequency
C	Select a frequency just below the critical frequency
D	Select a frequency just below the MUF

13. - G3C07

What makes HF scatter signals often sound distorted?

Select	Answer
A	The ionospheric layer involved is unstable
B	Ground waves are absorbing much of the signal
C	The E-region is not present
D	Energy is scattered into the skip zone through several different radio wave paths

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	All of these choices are correct
B	Frequent connection timeouts
C	The transmitter signal is distorted
D	The VOX circuit does not un-key the transmitter

15. - G4B09

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

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

16. - G4C05

What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

Select	Answer
A	The ground rod is resonant
B	Insulated wire has been used for the ground wire
C	The ground wire has high impedance on that frequency
D	Flat braid rather than round wire has been used for the ground wire

17. - 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 to 14.3485 MHz
B	14.344 to 14.347 MHz
C	14.347 to 14.350 MHz
D	14.347 to 14.647 MHz

18. - G4E09

What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

Select	Answer
A	1.38 VDC
B	0.2 VDC
C	0.02 VDC
D	0.5 VDC

19. - G5A08

Why is impedance matching important?

Select	Answer
A	To ensure that the resistance and reactance in the circuit are equal
B	To ensure that there is less resistance than reactance in the circuit
C	So the load will draw minimum power from the source
D	So the source can deliver maximum power to the load

20. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	8.5 volts
B	34 volts
C	12 volts
D	24 volts

21. - G5C06

What is the RMS voltage across a 500-turn secondary winding in a transformer if the 2250-turn primary is connected to 120 VAC?

Select	Answer
A	26.7 volts
B	2370 volts
C	5.9 volts
D	540 volts

22. - G6A05

What is the approximate junction threshold voltage of a conventional silicon diode?

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

23. - G6B05

What is meant when memory is characterized as non-volatile?

Select	Answer
A	It is resistant to radiation damage
B	The stored information cannot be changed once written
C	It is resistant to high temperatures
D	The stored information is maintained even if power is removed

24. - G7A04

What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

Select	Answer
A	Equal to the normal output voltage of the power supply
B	Two times the normal peak output voltage of the power supply
C	One-half the normal output voltage of the power supply
D	One-half the normal peak output voltage of the power supply

25. - G7B02

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

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

26. - G7C09

Which of the following is needed for a Digital Signal Processor IF filter?

Select	Answer
A	A digital processor chip
B	A digital to analog converter
C	An analog to digital converter
D	All of the these choices are correct

27. - G8A10

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

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

28. - G8B10

What is the relationship between transmitted symbol rate and bandwidth?

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

29. - G8C04

Which of the following describes Baudot code?

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

30. - G9A04

What might cause reflected power at the point where a feed line connects to an antenna?

Select	Answer
A	A difference between feed line impedance and antenna feed point impedance
B	Feeding the antenna with unbalanced feed line
C	Operating an antenna at its resonant frequency
D	Using more transmitter power than the antenna can handle

31. - G9B05

How does antenna height affect the horizontal (azimuthal) radiation pattern of a horizontal dipole HF antenna?

Select	Answer
A	If the antenna is too high, the pattern becomes unpredictable
B	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
C	Antenna height has no effect on the pattern
D	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional

32. - G9C03

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	The driven element is the longest element
B	Low feed point impedance increases bandwidth
C	The director is normally the shortest element
D	The reflector is normally the shortest element

33. - G9D08

Why is a Beverage antenna not used for transmitting?

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

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

35. - G0B15

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	All of these choices are correct
C	The generator should be located in a well-ventilated area
D	The generator must be insulated from ground