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. - G1A08

Which of the following frequencies is within the General Class portion of the 80-meter band?

Select	Answer
A	3560 kHz
B	3650 kHz
C	2560 kHz
D	1855 kHz

2. - G1B07

What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

Select	Answer
A	Only "10 codes" are permitted
B	Only "Q" signals are permitted
C	They may be used if they do not obscure the meaning of a message
D	They are not permitted

3. - G1C11

What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

Select	Answer
A	19.6 kilobaud
B	300 baud
C	1200 baud
D	56 kilobaud

4. - G1D08

Which of the following criteria must be met for a non-U.S. citizen to be an accredited Volunteer Examiner?

Select	Answer
A	The person's home citizenship must be in ITU region 2
B	The person must hold an FCC granted Amateur Radio license of General Class or above
C	The person must be a resident of the U.S. for a minimum of 5 years
D	None of these choices is correct; a non-U.S. citizen cannot be a Volunteer Examiner

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is speaking in a language other than English
B	The third party's amateur license has been revoked and not reinstated
C	The third party is a licensed amateur
D	The third party is not a U.S. citizen

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

7. - G2B06

What is a practical way to avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
B	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
C	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response
D	Listen for 2 minutes before calling CQ

8. - G2C03

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

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

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 manufacturer of your equipment and the antenna used
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 the date, time, frequency, power level and stations worked
D	You must keep a record of all third party traffic

10. - G2E04

What segment of the 20-meter band is most often used for digital transmissions?

Select	Answer
A	14.150 - 14.225 MHz
B	14.000 - 14.050 MHz
C	14.275 - 14.350 MHz
D	14.070 - 14.100 MHz

11. - G3A11

Approximately how long is the typical sunspot cycle?

Select	Answer
A	28 days
B	40 hours
C	11 years
D	8 minutes

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

13. - G3C03

Why is the F2 region mainly responsible for the longest distance radio wave propagation?

Select	Answer
A	Because it is the highest ionospheric region
B	Because it does not absorb radio waves as much as other ionospheric regions
C	Because it is the densest ionospheric layer
D	All of these choices are correct

14. - G4A15

Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?

Select	Answer
A	Frequent connection timeouts
B	All of these choices are correct
C	The VOX circuit does not un-key the transmitter
D	The transmitter signal is distorted

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 audio frequency range square wave signals of equal amplitude
D	Two swept frequency tones

16. - G4C07

What is one good way to avoid unwanted effects of stray RF energy in an amateur station?

Select	Answer
A	Use a ground loop for best conductivity
B	Connect all equipment grounds together
C	Install a few ferrite beads on the ground wire where it connects to your station
D	Install an RF filter in series with the ground wire

17. - G4D10

How close to the lower edge of the 40-meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

Select	Answer
A	At least 3 kHz above the edge of the segment
B	At least 3 kHz below the edge of the segment
C	At least 1 kHz above the edge of the segment
D	Your displayed carrier frequency may be set at the edge of the segment

18. - G4E06

What is one disadvantage of using a shortened mobile antenna as opposed to a full size antenna?

Select	Answer
A	Operating bandwidth may be very limited
B	Harmonic radiation may increase
C	Short antennas are more likely to cause distortion of transmitted signals
D	Short antennas can only receive circularly polarized signals

19. - G5A12

What is one reason to use an impedance matching transformer?

Select	Answer
A	To minimize transmitter power output
B	To maximize the transfer of power
C	To minimize radiation resistance
D	To reduce power supply ripple

20. - G5B13

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

Select	Answer
A	1060 watts
B	1500 watts
C	530 watts
D	2120 watts

21. - G5C18

What is the value in microfarads of a 4700 nanofarad (nF) capacitor?

Select	Answer
A	47 microfarads
B	0.47 microfarads
C	4.7 microfarads
D	47,000 microfarads

22. - G6A19

How should the winding axes of two solenoid inductors be oriented to minimize their mutual inductance?

Select	Answer
A	In line
B	Interleaved
C	At right angles to each other
D	Parallel to each other

23. - G6B02

What is meant by the term MMIC?

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

24. - G7A03

What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

Select	Answer
A	Double the normal peak output voltage of the power supply
B	One-quarter the normal output voltage of the power supply
C	Equal to the normal peak output voltage of the power supply
D	Half the normal output voltage of the power supply

25. - G7B13

What is the reason for neutralizing the final amplifier stage of a transmitter?

Select	Answer
A	To limit the modulation index
B	To eliminate self-oscillations
C	To cut off the final amplifier during standby periods
D	To keep the carrier on frequency

26. - G7C09

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

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

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

Select	Answer
A	Double sideband
B	Frequency modulation
C	Phase modulation
D	Single sideband

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	Reactance modulator
B	Mixer
C	Multiplier
D	Pre-emphasis network

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. - G9A06

In what units is RF feed line loss usually expressed?

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

31. - G9B12

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

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

32. - G9C18

What happens when the feed point of a quad antenna of any shape is moved from the midpoint of the top or bottom to the midpoint of either side?

Select	Answer
A	The polarization of the radiated signal changes from vertical to horizontal
B	The polarization of the radiated signal changes from horizontal to vertical
C	There is no change in polarization
D	The radiated signal becomes circularly polarized

33. - G9D05

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

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

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It causes radiation poisoning
B	It heats body tissue
C	It causes the blood count to reach a dangerously low level
D	It cools body tissue

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	All of these choices are correct
C	Never lean back and rely on the belt alone to support your weight
D	Confirm that the belt is rated for the weight of the climber and that it is within its allowable service life