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	14005 kHz
B	14405 kHz
C	14305 kHz
D	14105 kHz

2. - G1B08

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

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

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

Select	Answer
A	19.6 kilobaud
B	1200 baud
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	Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
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	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	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

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

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Less subject to interference from atmospheric static crashes
B	Very high fidelity voice modulation
C	Ease of tuning on receive and immunity to impulse noise
D	Less bandwidth used and greater power efficiency

7. - G2B08

What is the "DX window" in a voluntary band plan?

Select	Answer
A	An FCC rule that allows only digital contacts in that portion of the band
B	An FCC rule that prohibits contacts between stations within the United States and possessions in that portion of the band
C	A portion of the band that should not be used for contacts between stations within the 48 contiguous United States
D	A portion of the band that has been voluntarily set aside for digital contacts only

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	There is interference on the frequency
B	I am quitting for the day
C	I am ready to receive messages
D	You are sending too fast

9. - G2D07

Which of the following is required by the FCC rules when operating in the 60-meter band?

Select	Answer
A	You must keep a record of the date, time, frequency, power level and stations worked
B	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
C	You must keep a record of all third party traffic
D	You must keep a record of the manufacturer of your equipment and the antenna used

10. - G2E01

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

Select	Answer
A	USB
B	DSB
C	CW
D	LSB

11. - G3A07

At what point in the solar cycle does the 20-meter band usually support worldwide propagation during daylight hours?

Select	Answer
A	At any point in the solar cycle
B	At the summer solstice
C	Only at the maximum point of the solar cycle
D	Only at the minimum point of the solar cycle

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

13. - G3C11

Which of the following antenna types will be most effective for skip communications on 40-meters during the day?

Select	Answer
A	A horizontal dipole placed between 1/8 and 1/4 wavelength above the ground
B	A left-hand circularly polarized antenna
C	A vertical antenna
D	A right-hand circularly polarized antenna

14. - G4A03

What is normally meant by operating a transceiver in "split" mode?

Select	Answer
A	The transceiver is operating from an external power source
B	The radio is operating at half power
C	The transmitter is emitting an SSB signal, as opposed to DSB operation
D	The transceiver is set to different transmit and receive frequencies

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for measuring computer circuits
B	Better precision for most uses
C	Better for RF measurements
D	Faster response

16. - G4C12

Which of the following is an advantage of a receiver DSP IF filter as compared to an analog filter?

Select	Answer
A	A wide range of filter bandwidths and shapes can be created
B	Mixing products are greatly reduced
C	Fewer digital components are required
D	The DSP filter is much more effective at VHF frequencies

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	14.344 to 14.347 MHz
B	14.347 to 14.350 MHz
C	14.3455 to 14.3485 MHz
D	14.347 to 14.647 MHz

18. - G4E02

What is the purpose of a corona ball on a HF mobile antenna?

Select	Answer
A	To narrow the operating bandwidth of the antenna
B	To reduce high voltage discharge from the tip of the antenna
C	To reduce the chance of damage if the antenna should strike an object
D	To increase the "Q" of the antenna

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Ampere
B	Ohm
C	Siemens
D	Farad

20. - G5B10

What percentage of power loss would result from a transmission line loss of 1 dB?

Select	Answer
A	25.9 percent
B	10.9 percent
C	20.5 percent
D	12.2 percent

21. - G5C11

What is the inductance of a 20 millihenry inductor connected in series with a 50 millihenry inductor?

Select	Answer
A	14.3 millihenrys
B	1000 millihenrys
C	70 millihenrys
D	0.07 millihenrys

22. - G6A16

What will happen to the resistance if the temperature of a resistor is increased?

Select	Answer
A	It will change depending on the resistor's reactance coefficient
B	It will become time dependent
C	It will change depending on the resistor's temperature coefficient
D	It will stay the same

23. - G6B04

What is meant by the term ROM?

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

24. - G7A05

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

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

25. - G7B07

What are the basic components of virtually all sine wave oscillators?

Select	Answer
A	A frequency multiplier and a mixer
B	A circulator and a filter operating in a feed-forward loop
C	An amplifier and a divider
D	A filter and an amplifier operating in a feedback loop

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	About the same
B	Substantially higher
C	Substantially lower
D	Twice the transmission line impedance

27. - G8A01

How is an FSK signal generated?

Select	Answer
A	By keying an FM transmitter with a sub-audible tone
B	By changing an oscillator's frequency directly with a digital control signal
C	By using a transceiver's computer data interface protocol to change frequencies
D	By reconfiguring the CW keying input to act as a tone generator

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	Mixer
B	VFO
C	BFO
D	Discriminator

29. - G8C10

How does forward error correction (FEC) allow the receiver to correct errors in received data packets?

Select	Answer
A	By using the varicode character set
B	By controlling transmitter output power for optimum signal strength
C	By using a parity bit with each character
D	By transmitting redundant information with the data

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

31. - G9B01

What is one disadvantage of a directly fed random-wire HF antenna?

Select	Answer
A	It must be longer than 1 wavelength
B	It produces only vertically polarized radiation
C	It is more effective on the lower HF bands than on the higher bands
D	You may experience RF burns when touching metal objects in your station

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	2.54 dB higher
B	About the same
C	3 dB lower
D	3 dB higher

33. - G9D10

Which of the following describes a Beverage antenna?

Select	Answer
A	A vertical antenna
B	A very long and low directional receiving antenna
C	A broad-band mobile antenna
D	A helical antenna for space reception

34. - G0A02

Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

Select	Answer
A	Its duty cycle
B	Its power density
C	All of these choices are correct
D	Its frequency

35. - G0B15

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

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