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	14250 kHz
B	21300 kHz
C	24900 kHz
D	18155 kHz

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	There must be no more than one beacon signal transmitting in the same band from the same station location
B	The frequency must be posted on the Internet or published in a national periodical
C	A beacon station may not use automatic control
D	The frequency must be coordinated with the National Beacon Organization

3. - G1C02

What is the maximum transmitting power an amateur station may use on the 12-meter band?

Select	Answer
A	1500 watts PEP output
B	50 watts PEP output
C	200 watts PEP output
D	An effective radiated power equivalent to 100 watts from a half-wave dipole

4. - G1D06

When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its website ?

Select	Answer
A	Whenever you operate on any amateur frequency
B	Whenever you operate using General Class frequency privileges
C	Whenever you operate using Technician frequency privileges
D	A special identifier is not required as long as your General Class license application has been filed with the FCC

5. - G1E05

What types of messages for a third party in another country may be transmitted by an amateur station?

Select	Answer
A	Any message, as long as the amateur operator is not paid
B	Only messages for other licensed amateurs
C	Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
D	Any messages, as long as the text of the message is recorded in the station log

6. - G2A03

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

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

7. - G2B08

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

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

8. - G2C02

What should you do if a CW station sends "QRS"?

Select	Answer
A	Change frequency
B	Increase your power
C	Send slower
D	Repeat everything twice

9. - G2D05

When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

Select	Answer
A	When the contact is with amateurs in any country as long as the communication is conducted in English
B	Only when the foreign country has a formal third party agreement filed with the FCC
C	When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
D	Only when the foreign country is a member of the International Amateur Radio Union

10. - G2E08

In what segment of the 20-meter band are most PSK31 operations commonly found?

Select	Answer
A	At the top of the SSB phone segment, near 14.325 MHz
B	At the bottom of the slow-scan TV segment, near 14.230 MHz
C	Below the RTTY segment, near 14.070 MHz
D	In the middle of the CW segment, near 14.100 MHz

11. - G3A07

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

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

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	12,000 miles
D	1,200 miles

13. - G3C10

Which of the following might be an indication that signals heard on the HF bands are being received via scatter propagation?

Select	Answer
A	The signal is heard on a frequency above the Maximum Usable Frequency
B	The communication is during a sunspot maximum
C	The signal is heard on a frequency below the Maximum Usable Frequency
D	The communication is during a sudden ionospheric disturbance

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	Interference from impulse noise will be eliminated
B	It may be possible to reduce or eliminate interference from other signals
C	More stations can be accommodated within a given signal passband
D	Accidental out of band operation can be prevented

15. - G4B07

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

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

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

Select	Answer
A	Clearly audible speech
B	On-and-off humming or clicking
C	A steady hum whenever the transmitter is on the air
D	Distorted speech

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	14.347 to 14.647 MHz
C	14.347 to 14.350 MHz
D	14.344 to 14.347 MHz

18. - G4E02

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

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

19. - G5A04

Which of the following causes opposition to the flow of alternating current in a capacitor?

Select	Answer
A	Conductance
B	Reactance
C	Admittance
D	Reluctance

20. - G5B12

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

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

21. - G5C17

What is the value in nanofarads (nF) of a 22,000 pF capacitor?

Select	Answer
A	22 nF
B	2.2 nF
C	220 nF
D	0.22 nF

22. - G6A06

Which of the following is an advantage of using a Schottky diode in an RF switching circuit rather than a standard silicon diode?

Select	Answer
A	Lower capacitance
B	Longer switching times
C	Lower inductance
D	Higher breakdown voltage

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Multi Megabyte Integrated Circuit
B	Mode Modulated Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Monolithic Microwave Integrated Circuit

24. - G7A07

What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

Select	Answer
A	A sine wave at half the frequency of the AC input
B	A steady DC voltage
C	A series of DC pulses at the same frequency as the AC input
D	A series of DC pulses at twice the frequency of the AC input

25. - G7B04

Which of the following describes the function of a two input NOR gate?

Select	Answer
A	Output is low only when both inputs are high
B	Output is high when either or both inputs are low
C	Output is high only when both inputs are high
D	Output is low when either or both inputs are high

26. - G7C07

What is the simplest combination of stages that implement a superheterodyne receiver?

Select	Answer
A	RF amplifier, detector, audio amplifier
B	HF oscillator, prescaler, audio amplifier
C	HF oscillator, mixer, detector
D	RF amplifier, mixer, IF discriminator

27. - G8A08

Which of the following is an effect of overmodulation?

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

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	Mixer
B	Multiplier
C	Pre-emphasis network
D	Reactance modulator

29. - G8C03

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

Select	Answer
A	Directory
B	Header
C	Footer
D	Preamble

30. - G9A11

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 50 ohm impedance?

Select	Answer
A	50:50
B	2:1
C	0:0
D	1:1

31. - G9B10

What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

Select	Answer
A	16 feet
B	8 feet
C	32 feet
D	24 feet

32. - G9C11

What is the purpose of a gamma match used with Yagi antennas?

Select	Answer
A	To match the relatively high feed point impedance to 50 ohms
B	To increase the front-to-back ratio
C	To match the relatively low feed point impedance to 50 ohms
D	To increase the main lobe gain

33. - G9D11

Which of the following is a disadvantage of multiband antennas?

Select	Answer
A	They must be fed with open wire line
B	They present low impedance on all design frequencies
C	They must be used with an antenna tuner
D	They have poor harmonic rejection

34. - G0A06

What precaution should be taken when installing a ground-mounted antenna?

Select	Answer
A	It should be installed such that it is protected against unauthorized access
B	It should not be installed in a wet area
C	It should not be installed higher than you can reach
D	It should limited to 10 feet in height

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	They must be bonded together with all other grounds
B	Bends in ground wires must be made as close as possible to a right angle
C	They must be bonded to all buried water and gas lines
D	Lightning grounds must be connected to all ungrounded wiring