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	14105 kHz
D	14005 kHz

2. - G1B03

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

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

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	1000 watts PEP output
C	1200 watts PEP output
D	200 watts PEP output

4. - G1D11

If a person has an expired FCC issued amateur radio license of General Class or higher, what is required before they can receive a new license?

Select	Answer
A	There are no requirements other than being able to show a copy of the expired license
B	They must have a letter from the FCC showing they once held an amateur or commercial license
C	The applicant must be able to produce a copy of a page from a call book published in the USA showing his or her name and address
D	The applicant must pass the current element 2 exam

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	All of these choices are correct
B	The control operator must have at least a General Class license
C	The foreign amateur station must be in a country with which the United States has a third party agreement
D	Information must be exchanged in English

6. - G2A11

What does the expression "CQ DX" usually indicate?

Select	Answer
A	The caller is looking for any station outside their own country
B	The caller is listening for a station in Germany
C	A general call for any station
D	A distress call

7. - G2B02

What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Select	Answer
A	Change to a different frequency
B	Acknowledge the station in distress and determine what assistance may be needed
C	Continue your communication because you were on the frequency first
D	Immediately cease all transmissions

8. - G2C08

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

Select	Answer
A	KN
B	SK
C	AR
D	BK

9. - G2D04

Which of the following describes an azimuthal projection map?

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

10. - G2E10

Which of the following is a way to establish contact with a digital messaging system gateway station?

Select	Answer
A	Transmit a connect message on the station's published frequency
B	Respond when the station broadcasts its SSID
C	Send an email to the system control operator
D	Send QRL in Morse code

11. - G3A04

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

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

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

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. - G4A04

What reading on the plate current meter of a vacuum tube RF power amplifier indicates correct adjustment of the plate tuning control?

Select	Answer
A	A pronounced peak
B	No change will be observed
C	A pronounced dip
D	A slow, rhythmic oscillation

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	Input impedance is much lower
B	An oscilloscope uses less power
C	Complex waveforms can be measured
D	Complex impedances can be easily measured

16. - G4C01

Which of the following might be useful in reducing RF interference to audio frequency devices?

Select	Answer
A	Reverse-biased diode
B	Forward-biased diode
C	Bypass capacitor
D	Bypass inductor

17. - G4D06

Where is an S meter found?

Select	Answer
A	In a conductance bridge
B	In a receiver
C	In an SWR bridge
D	In a transmitter

18. - G4E08

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

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

19. - G5A07

What happens when the impedance of an electrical load is equal to the output impedance of a power source, assuming both impedances are resistive?

Select	Answer
A	The source can deliver maximum power to the load
B	The electrical load is shorted
C	The source delivers minimum power to the load
D	No current can flow through the circuit

20. - G5B11

What is the ratio of peak envelope power to average power for an unmodulated carrier?

Select	Answer
A	0.707
B	1.00
C	2.00
D	1.414

21. - G5C03

Which of the following components should be added to an existing resistor to increase the resistance?

Select	Answer
A	A capacitor in parallel
B	A resistor in parallel
C	A resistor in series
D	A capacitor in series

22. - G6A11

Which of the following solid state devices is most like a vacuum tube in its general operating characteristics?

Select	Answer
A	A tunnel diode
B	A varistor
C	A field effect transistor
D	A bipolar transistor

23. - G6B10

What two devices in an Amateur Radio station might be connected using a USB interface?

Select	Answer
A	Power supply and amplifier
B	Microphone and transceiver
C	Computer and transceiver
D	Amplifier and antenna

24. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 1
B	Symbol 4
C	Symbol 5
D	Symbol 11

25. - G7B05

How many states does a 3-bit binary counter have?

Select	Answer
A	16
B	8
C	6
D	3

26. - G7C09

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

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

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Excessive bandwidth
B	Insufficient audio
C	Insufficient bandwidth
D	Frequency drift

28. - G8B04

What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?

Select	Answer
A	Pre-emphasis network
B	Reactance modulator
C	Mixer
D	Multiplier

29. - G8C09

What does the number 31 represent in "PSK31"?

Select	Answer
A	The version of the PSK protocol
B	The number of characters that can be represented by PSK31
C	The year in which PSK31 was invented
D	The approximate transmitted symbol rate

30. - G9A06

In what units is RF feed line loss usually expressed?

Select	Answer
A	Ohms per 1000 feet
B	Ohms per 100 feet
C	Decibels per 100 feet
D	Decibels per 1000 feet

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	Parallel to the antenna element
B	As high as possible above the ground
C	At the center of the antenna
D	On the surface of the Earth or buried a few inches below the ground

32. - G9C17

Approximately how long is each leg of a symmetrical delta-loop antenna?

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

33. - G9D05

What is an advantage of vertical stacking of horizontally polarized Yagi antennas?

Select	Answer
A	It allows quick selection of vertical or horizontal polarization
B	It narrows the main lobe in azimuth
C	It narrows the main lobe in elevation
D	It allows simultaneous vertical and horizontal polarization

34. - G0A04

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

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

35. - G0B12

What is the purpose of a power supply interlock?

Select	Answer
A	To prevent unauthorized changes to the circuit that would void the manufacturer's warranty
B	To shut down the unit if it becomes too hot
C	To ensure that dangerous voltages are removed if the cabinet is opened
D	To shut off the power supply if too much voltage is produced

Figure G7-1