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	60 meters
C	11 meters
D	12 meters

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 IEEE
B	The ITU
C	The FCC
D	The Control Operator

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	2.8 kHz
C	5.6 kHz
D	3 kHz

4. - G1D07

Volunteer Examiners are accredited by what organization?

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

5. - G1E04

Which of the following conditions require a licensed Amateur Radio operator to take specific steps to avoid harmful interference to other users or facilities?

Select	Answer
A	When a station is transmitting spread spectrum emissions
B	When operating within one mile of an FCC Monitoring Station
C	When using a band where the Amateur Service is secondary
D	All of these choices are correct

6. - G2A01

Which sideband is most commonly used for voice communications on frequencies of 14 MHz or higher?

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

7. - G2B07

Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

Select	Answer
A	Check to see if the channel is assigned to another station
B	All of these choices are correct
C	Identify your station by transmitting your call sign at least 3 times
D	Follow the voluntary band plan for the operating mode you intend to use

8. - G2C06

What does the term "zero beat" mean in CW operation?

Select	Answer
A	Matching your transmit frequency to the frequency of a received signal
B	Matching the speed of the transmitting station
C	Operating split to avoid interference on frequency
D	Sending without error

9. - G2D01

What is the Amateur Auxiliary to the FCC?

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

10. - G2E07

What segment of the 80-meter band is most commonly used for digital transmissions?

Select	Answer
A	3700 - 3750 kHz
B	3775 - 3825 kHz
C	3570 - 3600 kHz
D	3500 - 3525 kHz

11. - G3A16

What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?

Select	Answer
A	Improved HF long path propagation
B	Auroras that can reflect VHF signals
C	Reduced long delayed echoes
D	Higher signal strength for HF signals passing through the polar regions

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

13. - G3C09

What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky-wave propagation?

Select	Answer
A	Scatter
B	Short-path skip
C	Faraday rotation
D	Sporadic-E skip

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

15. - G4B09

Which of the following can be determined with a field strength meter?

Select	Answer
A	The radiation pattern of an antenna
B	The presence and amount of phase distortion of a transmitter
C	The radiation resistance of an antenna
D	The presence and amount of amplitude distortion of a transmitter

16. - G4C08

Which of the following would reduce RF interference caused by common-mode current on an audio cable?

Select	Answer
A	Placing a ferrite choke around the cable
B	Adding series capacitors to the conductors
C	Adding shunt inductors to the conductors
D	Adding an additional insulating jacket to the cable

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	14.347 to 14.350 MHz
B	14.347 to 14.647 MHz
C	14.344 to 14.347 MHz
D	14.3455 to 14.3485 MHz

18. - G4E07

Which of the following may cause interference to be heard in the receiver of an HF radio installed in a recent model vehicle?

Select	Answer
A	The fuel delivery system
B	The vehicle control computer
C	All of these choices are correct
D	The battery charging system

19. - G5A11

Which of the following describes one method of impedance matching between two AC circuits?

Select	Answer
A	Increase the power output of the first circuit
B	Insert an LC network between the two circuits
C	Reduce the power output of the first circuit
D	Insert a circulator between the two circuits

20. - G5B14

What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

Select	Answer
A	8.75 watts
B	5000 watts
C	625 watts
D	2500 watts

21. - G5C13

Which of the following components should be added to a capacitor to increase the capacitance?

Select	Answer
A	An inductor in series
B	A capacitor in parallel
C	A resistor in series
D	A capacitor in series

22. - G6A08

Why must the cases of some large power transistors be insulated from ground?

Select	Answer
A	To avoid shorting the collector or drain voltage to ground
B	To improve the power dissipation capability
C	To reduce stray capacitance
D	To increase the beta of the transistor

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. - G7A10

Which symbol in figure G7-1 represents a Zener diode?

Select	Answer
A	Symbol 11
B	Symbol 4
C	Symbol 1
D	Symbol 5

25. - G7B10

Which of the following is a characteristic of a Class A amplifier?

Select	Answer
A	High Efficiency
B	Low distortion
C	No need for bias
D	Low standby power

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	Substantially higher
B	Twice the transmission line impedance
C	Substantially lower
D	About the same

27. - G8A11

What is the modulation envelope of an AM signal?

Select	Answer
A	The waveform created by connecting the peak values of the modulated signal
B	The bandwidth of the modulated signal
C	The carrier frequency that contains the signal
D	Spurious signals that envelop nearby frequencies

28. - G8B06

What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

Select	Answer
A	5 kHz
B	3 kHz
C	16 kHz
D	8 kHz

29. - G8C01

Which of the following digital modes is designed to operate at extremely low signal strength on the HF bands?

Select	Answer
A	FSK441 and Hellschreiber
B	Clover
C	RTTY
D	JT9 and JT65

30. - G9A02

What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

Select	Answer
A	500 and 750 ohms
B	25 and 30 ohms
C	50 and 75 ohms
D	80 and 100 ohms

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. - G9C02

What is the approximate length of the driven element of a Yagi antenna?

Select	Answer
A	3/4 wavelength
B	1/4 wavelength
C	1/2 wavelength
D	1 wavelength

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To prevent out of band operation
B	To notch spurious frequencies
C	To permit multiband operation
D	To provide balanced feed point impedance

34. - G0A01

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

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

35. - G0B02

What is the minimum wire size that may be safely used for a circuit that draws up to 20 amperes of continuous current?

Select	Answer
A	AWG number 16
B	AWG number 12
C	AWG number 20
D	AWG number 8

Figure G7-1