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. - G1A14

In what ITU region is operation in the 7.175 to 7.300 MHz band permitted for a control operator holding an FCC issued General Class license?

Select	Answer
A	Region 2
B	Region 1
C	All three regions
D	Region 3

2. - G1B08

When choosing a transmitting frequency, what should you do to comply with good amateur practice?

Select	Answer
A	Monitor the frequency before transmitting
B	Follow generally accepted band plans agreed to by the Amateur Radio community
C	Insure that the frequency and mode selected are within your license class privileges
D	All of these choices are correct

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

4. - G1D09

How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

Select	Answer
A	For as long as your current license is valid
B	365 days
C	180 days
D	30 days

5. - G1E13

On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

Select	Answer
A	Anywhere in the 1.25-meter or shorter wavelength bands, and in specified segments of the 80-meter through 2-meter bands
B	Only in the non-phone Extra Class segments of the bands
C	On any band segment where digital operation is permitted
D	Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands

6. - G2A04

Which mode is most commonly used for voice communications on the 17-meter and 12-meter bands?

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

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

8. - G2C10

What does the Q signal "QRN" mean?

Select	Answer
A	I am troubled by static
B	Stop sending
C	Zero beat my signal
D	Send more slowly

9. - G2D01

What is the Amateur Auxiliary to the FCC?

Select	Answer
A	Amateur volunteers who are formally enlisted to monitor the airwaves for rules violations
B	Amateur volunteers who use their station equipment to help civil defense organizations in times of emergency
C	Amateur volunteers who conduct frequency coordination for amateur VHF repeaters
D	Amateur volunteers who conduct amateur licensing examinations

10. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Transmit a steady carrier until the PACTOR protocol times out and disconnects
B	Send a NAK response continuously so that the sending station has to pause
C	Send broadcast packets containing your call sign while in MONITOR mode
D	Joining an existing contact is not possible, PACTOR connections are limited to two stations

11. - G3A13

What does the A-index indicate?

Select	Answer
A	The long term stability of the Earth's geomagnetic field
B	The amount of polarization of the Sun's electric field
C	The solar radio flux at Boulder, Colorado
D	The relative position of sunspots on the surface of the Sun

12. - G3B06

What usually happens to radio waves with frequencies below the LUF?

Select	Answer
A	They are completely absorbed by the ionosphere
B	They pass through the ionosphere
C	They are bent and trapped in the ionosphere to circle the Earth
D	They are bent back to the Earth

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 right-hand circularly polarized antenna
B	A horizontal dipole placed between 1/8 and 1/4 wavelength above the ground
C	A vertical antenna
D	A left-hand circularly polarized antenna

14. - G4A01

What is the purpose of the "notch filter" found on many HF transceivers?

Select	Answer
A	To eliminate receiver interference from impulse noise sources
B	To restrict the transmitter voice bandwidth
C	To enhance the reception of a specific frequency on a crowded band
D	To reduce interference from carriers in the receiver passband

15. - G4B01

What item of test equipment contains horizontal and vertical channel amplifiers?

Select	Answer
A	A signal generator
B	An oscilloscope
C	An ohmmeter
D	An ammeter

16. - G4C11

Which of the following is a function of a digital signal processor?

Select	Answer
A	To provide adequate grounding
B	To remove noise from received signals
C	To increase antenna bandwidth
D	To increase antenna gain

17. - G4D03

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

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

18. - G4E02

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

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

19. - G5A12

What is one reason to use an impedance matching transformer?

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

20. - G5B10

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

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

21. - G5C12

What is the capacitance of a 20 microfarad capacitor connected in series with a 50 microfarad capacitor?

Select	Answer
A	70 microfarads
B	1000 microfarads
C	14.3 microfarads
D	0.07 microfarads

22. - G6A15

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

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

23. - G6B13

Which of these connector types is commonly used for RF connections at frequencies up to 150 MHz?

Select	Answer
A	RJ-11
B	DB-25
C	PL-259
D	Octal

24. - G7A03

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

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

25. - G7B01

Complex digital circuitry can often be replaced by what type of integrated circuit?

Select	Answer
A	Charge-coupled device
B	Microcontroller
C	Phase detector
D	Window comparator

26. - G7C11

What is meant by the term "software defined radio" (SDR)?

Select	Answer
A	A radio in which most major signal processing functions are performed by software
B	A computer model that can simulate performance of a radio to aid in the design process
C	A radio that provides computer interface for automatic logging of band and frequency
D	A radio that uses crystal filters designed using software

27. - G8A07

Which of the following phone emissions uses the narrowest bandwidth?

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

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	Mixer
B	Discriminator
C	BFO
D	VFO

29. - G8C02

How many data bits are sent in a single PSK31 character?

Select	Answer
A	The number varies
B	7
C	5
D	8

30. - G9A04

What might cause reflected power at the point where a feed line connects to an antenna?

Select	Answer
A	Feeding the antenna with unbalanced feed line
B	A difference between feed line impedance and antenna feed point impedance
C	Using more transmitter power than the antenna can handle
D	Operating an antenna at its resonant frequency

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. - G9C04

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	The reflector is normally the longest element
B	All of the elements must be the same length
C	The reflector is normally the shortest element
D	The director is normally the longest element

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. - G0A11

What precaution should you take if you install an indoor transmitting antenna?

Select	Answer
A	Position the antenna along the edge of a wall to reduce parasitic radiation
B	Locate the antenna close to your operating position to minimize feed line radiation
C	Make sure that MPE limits are not exceeded in occupied areas
D	Make sure the antenna is properly shielded

35. - G0B07

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

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