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	12 meters
C	11 meters
D	60 meters

2. - G1B06

When is an amateur station permitted to transmit secret codes?

Select	Answer
A	During a declared communications emergency
B	Only when the information is of a routine, personal nature
C	To control a space station
D	Only with Special Temporary Authorization from the FCC

3. - G1C03

What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations transmitting on USB frequencies in the 60-meter band?

Select	Answer
A	1.8 kHz
B	5.6 kHz
C	3 kHz
D	2.8 kHz

4. - G1D07

Volunteer Examiners are accredited by what organization?

Select	Answer
A	A Volunteer Examiner Coordinator
B	The Federal Communications Commission
C	The Wireless Telecommunications Bureau
D	The Universal Licensing System

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

6. - G2A08

Which of the following is a recommended way to break into a contact when using phone?

Select	Answer
A	Say "CQ" followed by the call sign of either station
B	Say "Break Break Break" and wait for a response
C	Say your call sign during a break between transmissions by the other stations
D	Say "QRZ" several times followed by your call sign

7. - G2B09

Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Select	Answer
A	A person holding an FCC issued amateur operator license or an appropriate government official
B	Only a RACES net control operator
C	Only a person holding an FCC issued amateur operator license
D	Any control operator when normal communication systems are operational

8. - G2C03

What does it mean when a CW operator sends "KN" at the end of a transmission?

Select	Answer
A	Operating full break-in
B	Listening only for a specific station or stations
C	Listening for novice stations
D	Closing station now

9. - G2D02

Which of the following are objectives of the Amateur Auxiliary?

Select	Answer
A	To encourage self-regulation and compliance with the rules by radio amateur operators
B	To provide emergency and public safety communications
C	To conduct efficient and orderly amateur licensing examinations
D	To coordinate repeaters for efficient and orderly spectrum usage

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Skywarn
B	RTTY
C	Winlink
D	ARES

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

12. - G3B04

What is a reliable way to determine if the MUF is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

Select	Answer
A	Listen for signals from an international beacon in the frequency range you plan to use
B	Check the strength of TV signals from Western Europe
C	Check the strength of signals in the MF AM broadcast band
D	Send a series of dots on the band and listen for echoes from your signal

13. - G3C06

What is a characteristic of HF scatter signals?

Select	Answer
A	They have a wavering sound
B	They have very large swings in signal strength
C	They have high intelligibility
D	All of these choices are correct

14. - G4A11

Which of the following is a use for the IF shift control on a receiver?

Select	Answer
A	To change frequency rapidly
B	To permit listening on a different frequency from that on which you are transmitting
C	To avoid interference from stations very close to the receive frequency
D	To tune in stations that are slightly off frequency without changing your transmit frequency

15. - G4B13

What is a use for an antenna analyzer other than measuring the SWR of an antenna system?

Select	Answer
A	Measuring the front to back ratio of an antenna
B	Determining the gain of a directional antenna
C	Determining the impedance of an unknown or unmarked coaxial cable
D	Measuring the turns ratio of a power transformer

16. - G4C09

How can a ground loop be avoided?

Select	Answer
A	Avoid using lock washers and star washers when making ground connections
B	Connect all ground conductors in series
C	Connect all ground conductors to a single point
D	Connect the AC neutral conductor to the ground wire

17. - G4D01

What is the purpose of a speech processor as used in a modern transceiver?

Select	Answer
A	Increase transmitter bass response for more natural sounding SSB signals
B	Increase the intelligibility of transmitted phone signals during poor conditions
C	Decrease high-frequency voice output to prevent out of band operation
D	Prevent distortion of voice signals

18. - G4E03

Which of the following direct, fused power connections would be the best for a 100 watt HF mobile installation?

Select	Answer
A	To the alternator or generator using heavy gauge wire
B	To the battery using resistor wire
C	To the battery using heavy gauge wire
D	To the alternator or generator using resistor wire

19. - G5A03

Which of the following causes opposition to the flow of alternating current in an inductor?

Select	Answer
A	Conductance
B	Admittance
C	Reluctance
D	Reactance

20. - G5B10

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

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

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 series
C	A resistor in parallel
D	A capacitor in series

22. - G6A15

Which of the following is an advantage of an electrolytic capacitor?

Select	Answer
A	High capacitance for a given volume
B	Inexpensive RF capacitor
C	Much less leakage than any other type
D	Tight tolerance

23. - G6B16

Which of the following describes a type N connector?

Select	Answer
A	A moisture-resistant RF connector useful to 10 GHz
B	A threaded connector used for hydraulic systems
C	An audio connector used in surround-sound installations
D	A small bayonet connector used for data circuits

24. - G7A04

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

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

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	CW
C	SSB
D	All of these choices are correct

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

Select	Answer
A	Discriminator
B	IF amplifier
C	Balanced modulator
D	Detector

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 transformation
B	Frequency convolution
C	Frequency modulation
D	Frequency conversion

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	BFO
B	Discriminator
C	Mixer
D	VFO

29. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

Select	Answer
A	Packets will be routed incorrectly
B	The connection is dropped
C	The checksum overflows
D	Encoding reverts to the default character set

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

31. - G9B12

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Select	Answer
A	11 feet
B	8 feet
C	16 feet
D	21 feet

32. - G9C01

Which of the following would increase the bandwidth of a Yagi antenna?

Select	Answer
A	Loading coils in series with the element
B	Tapered-diameter elements
C	Larger diameter elements
D	Closer element spacing

33. - G9D09

Which of the following is an application for a Beverage antenna?

Select	Answer
A	Portable direction finding at lower HF frequencies
B	Directional transmitting for low HF bands
C	Portable direction finding at higher HF frequencies
D	Directional receiving for low HF bands

34. - G0A12

What precaution should you take whenever you make adjustments or repairs to an antenna?

Select	Answer
A	All of these choices are correct
B	Turn off the transmitter and disconnect the feed line
C	Ensure that you and the antenna structure are grounded
D	Wear a radiation badge

35. - G0B07

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

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