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. - G1A12

Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band?

Select	Answer
A	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band
B	Amateur stations are allowed to use the band only during emergencies
C	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
D	Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users

2. - G1B12

Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

Select	Answer
A	The FCC
B	The Control Operator
C	The IEEE
D	The ITU

3. - G1C05

Which of the following is a limitation on transmitter power on the 28 MHz band for a General Class control operator?

Select	Answer
A	1000 watts PEP output
B	2000 watts PEP output
C	100 watts PEP output
D	1500 watts PEP output

4. - G1D07

Volunteer Examiners are accredited by what organization?

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

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

6. - G2A03

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

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

7. - G2B01

Which of the following is true concerning access to frequencies in non-emergency situations?

Select	Answer
A	Nets always have priority
B	Except during FCC declared emergencies, no one has priority access to frequencies
C	QSOs in progress always have priority
D	Contest operations must always yield to non-contest use of frequencies

8. - G2C07

When sending CW, what does a "C" mean when added to the RST report?

Select	Answer
A	Report was read from an S meter rather than estimated
B	Chirpy or unstable signal
C	100 percent copy
D	Key clicks

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 all third party traffic
B	You must keep a record of the manufacturer of your equipment and the antenna used
C	If you are using other than a dipole antenna, you must keep a record of the gain of your antenna
D	You must keep a record of the date, time, frequency, power level and stations worked

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	In the middle of the CW segment, near 14.100 MHz
C	Below the RTTY segment, near 14.070 MHz
D	At the bottom of the slow-scan TV segment, near 14.230 MHz

11. - G3A14

How are radio communications usually affected by the charged particles that reach the Earth from solar coronal holes?

Select	Answer
A	HF communications are disturbed
B	VHF/UHF ducting is disturbed
C	VHF/UHF ducting is improved
D	HF communications are improved

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	2,500 miles
B	180 miles
C	12,000 miles
D	1,200 miles

13. - G3C06

What is a characteristic of HF scatter signals?

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

14. - G4A14

What is likely to happen if a transceiver's ALC system is not set properly when transmitting AFSK signals with the radio using single sideband mode?

Select	Answer
A	ALC will invert the modulation of the AFSK mode
B	All of these choices are correct
C	When using digital modes, too much ALC activity can cause the transmitter to overheat
D	Improper action of ALC distorts the signal and can cause spurious emissions

15. - G4B05

Why is high input impedance desirable for a voltmeter?

Select	Answer
A	It improves the resolution of the readings
B	It decreases battery consumption in the meter
C	It improves the frequency response
D	It decreases the loading on circuits being measured

16. - G4C06

What effect can be caused by a resonant ground connection?

Select	Answer
A	Overheating of ground straps
B	High RF voltages on the enclosures of station equipment
C	Corrosion of the ground rod
D	A ground loop

17. - G4D08

What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Select	Answer
A	7.178 to 7.181 MHz
B	7.1765 to 7.1795 MHz
C	7.175 to 7.178 MHz
D	7.178 to 7.184 MHz

18. - G4E08

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

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

19. - G5A12

What is one reason to use an impedance matching transformer?

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

20. - G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?

Select	Answer
A	8.5 volts
B	12 volts
C	34 volts
D	24 volts

21. - G5C09

What is the capacitance of three 100 microfarad capacitors connected in series?

Select	Answer
A	33.3 microfarads
B	0.33 microfarads
C	300 microfarads
D	0.30 microfarads

22. - G6A01

What is the minimum allowable discharge voltage for maximum life of a standard 12 volt lead acid battery?

Select	Answer
A	12 volts
B	10.5 volts
C	8.5 volts
D	6 volts

23. - G6B14

Which of these connector types is commonly used for audio signals in Amateur Radio stations?

Select	Answer
A	PL-259
B	BNC
C	Type N
D	RCA Phono

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 4
B	Symbol 6
C	Symbol 1
D	Symbol 7

25. - G7B07

What are the basic components of virtually all sine wave oscillators?

Select	Answer
A	A filter and an amplifier operating in a feedback loop
B	An amplifier and a divider
C	A circulator and a filter operating in a feed-forward loop
D	A frequency multiplier and a mixer

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	RF amplifier, mixer, IF discriminator
D	HF oscillator, mixer, detector

27. - G8A05

What type of modulation varies the instantaneous power level of the RF signal?

Select	Answer
A	Phase modulation
B	Frequency shift keying
C	Frequency modulation
D	Amplitude modulation

28. - G8B03

What is another term for the mixing of two RF signals?

Select	Answer
A	Synthesizing
B	Cancellation
C	Phase inverting
D	Heterodyning

29. - G8C05

In the PACTOR protocol, what is meant by an NAK response to a transmitted packet?

Select	Answer
A	The receiver is requesting the packet be retransmitted
B	The entire file has been received correctly
C	The receiver is busy decoding the packet
D	The receiver is reporting the packet was received without error

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	0:0
B	2:1
C	50:50
D	1:1

31. - G9B05

How does antenna height affect the horizontal (azimuthal) radiation pattern of a horizontal dipole HF antenna?

Select	Answer
A	Antenna height has no effect on the pattern
B	If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
C	If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
D	If the antenna is too high, the pattern becomes unpredictable

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

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Non-Varying Indicated SWR
B	Nearly Vertical Inductance System
C	Non-Varying Impedance Smoothing
D	Near Vertical Incidence sky-wave

34. - G0A07

What effect does transmitter duty cycle have when evaluating RF exposure?

Select	Answer
A	High duty cycle transmitters are exempt from RF exposure requirements
B	A lower transmitter duty cycle permits greater short-term exposure levels
C	A higher transmitter duty cycle permits greater short-term exposure levels
D	Low duty cycle transmitters are exempt from RF exposure evaluation requirements

35. - G0B01

Which wire or wires in a four-conductor connection should be attached to fuses or circuit breakers in a device operated from a 240 VAC single phase source?

Select	Answer
A	Only the two wires carrying voltage
B	Only the ground wire
C	Only the neutral wire
D	All wires

Figure G7-1