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. - G1A09

Which of the following frequencies is within the General Class portion of the 15-meter band?

Select	Answer
A	24900 kHz
B	21300 kHz
C	18155 kHz
D	14250 kHz

2. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	200 watts PEP output
B	10 watts PEP output
C	20 watts PEP output
D	100 watts PEP output

3. - G1C06

Which of the following is a limitation on transmitter power on the 1.8 MHz band?

Select	Answer
A	1500 watts PEP output
B	200 watts PEP output
C	1200 watts PEP output
D	1000 watts PEP output

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Receipt of a CSCE for General Class
B	Notification to the FCC that you want to give an examination
C	Possession of a properly obtained telegraphy license
D	An FCC General Class or higher license and VEC accreditation

5. - G1E07

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

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

6. - G2A03

Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

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

7. - G2B05

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

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

8. - G2C04

What does the Q signal "QRL?" mean?

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

9. - G2D04

Which of the following describes an azimuthal projection map?

Select	Answer
A	A map that shows the angle at which an amateur satellite crosses the equator
B	A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
C	A map that shows accurate land masses
D	A map that shows true bearings and distances from a particular location

10. - G2E03

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

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

11. - G3A03

Approximately how long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio propagation on the Earth?

Select	Answer
A	1 to 2 hours
B	28 days
C	8 minutes
D	20 to 40 hours

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

13. - G3C07

What makes HF scatter signals often sound distorted?

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

14. - G4A09

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

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

15. - G4B07

What signals are used to conduct a two-tone test?

Select	Answer
A	Two audio signals of the same frequency shifted 90 degrees
B	Two non-harmonically related audio signals
C	Two swept frequency tones
D	Two audio frequency range square wave signals of equal amplitude

16. - G4C06

What effect can be caused by a resonant ground connection?

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

17. - G4D03

Which of the following can be the result of an incorrectly adjusted speech processor?

Select	Answer
A	Splatter
B	Distorted speech
C	All of these choices are correct
D	Excessive background pickup

18. - G4E08

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

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

19. - G5A01

What is impedance?

Select	Answer
A	The inverse of resistance
B	The electric charge stored by a capacitor
C	The opposition to the flow of current in an AC circuit
D	The force of repulsion between two similar electric fields

20. - G5B12

What would be the RMS voltage across a 50 ohm dummy load dissipating 1200 watts?

Select	Answer
A	346 volts
B	692 volts
C	173 volts
D	245 volts

21. - G5C04

What is the total resistance of three 100 ohm resistors in parallel?

Select	Answer
A	300 ohms
B	33.3 ohms
C	0.30 ohms
D	0.33 ohms

22. - G6A03

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

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

23. - G6B06

What kind of device is an integrated circuit operational amplifier?

Select	Answer
A	Analog
B	Programmable Logic
C	Digital
D	MMIC

24. - G7A09

Which symbol in figure G7-1 represents a field effect transistor?

Select	Answer
A	Symbol 5
B	Symbol 2
C	Symbol 1
D	Symbol 4

25. - G7B11

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

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

26. - G7C01

Which of the following is used to process signals from the balanced modulator then send them to the mixer in some single sideband phone transmitters?

Select	Answer
A	Carrier oscillator
B	IF amplifier
C	Filter
D	RF amplifier

27. - G8A03

What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

Select	Answer
A	Frequency convolution
B	Frequency modulation
C	Frequency conversion
D	Frequency transformation

28. - G8B05

What is the approximate bandwidth of a PACTOR3 signal at maximum data rate?

Select	Answer
A	31.5 Hz
B	500 Hz
C	1800 Hz
D	2300 Hz

29. - G8C10

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

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

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	50 and 75 ohms
C	80 and 100 ohms
D	25 and 30 ohms

31. - G9B09

Which of the following is an advantage of a horizontally polarized as compared to a vertically polarized HF antenna?

Select	Answer
A	Shorter Radials
B	Lower ground reflection losses
C	Lower feed point impedance
D	Lower radiation resistance

32. - G9C09

How does the gain of two 3-element horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single 3-element Yagi?

Select	Answer
A	Approximately 9 dB higher
B	Approximately 1.5 dB higher
C	Approximately 6 dB higher
D	Approximately 3 dB higher

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Impedance Smoothing
B	Non-Varying Indicated SWR
C	Nearly Vertical Inductance System
D	Near Vertical Incidence sky-wave

34. - G0A09

What type of instrument can be used to accurately measure an RF field?

Select	Answer
A	A calibrated field strength meter with a calibrated antenna
B	An oscilloscope with a high-stability crystal marker generator
C	A receiver with an S meter
D	An SWR meter with a peak-reading function

35. - G0B07

Which of these choices should be observed when climbing a tower using a safety belt or harness?

Select	Answer
A	Ensure that all heavy tools are securely fastened to the belt D-ring
B	Confirm that the belt is rated for the weight of the climber and that it is within its allowable service life
C	Never lean back and rely on the belt alone to support your weight
D	All of these choices are correct

Figure G7-1