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. - G1A02

On which of the following bands is phone operation prohibited?

Select	Answer
A	17 meters
B	30 meters
C	160 meters
D	12 meters

2. - G1B10

What is the power limit for beacon stations?

Select	Answer
A	10 watts PEP output
B	200 watts PEP output
C	100 watts PEP output
D	20 watts PEP output

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

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

4. - G1D09

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

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

5. - G1E06

Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

Select	Answer
A	The frequency coordinator bears primary responsibility to resolve the interference
B	The licensee of the coordinated repeater has primary responsibility to resolve the interference
C	Both repeater licensees share equal responsibility to resolve the interference
D	The licensee of the uncoordinated repeater has primary responsibility to resolve the interference

6. - G2A07

Which of the following statements is true of the single sideband voice mode?

Select	Answer
A	Only one sideband is transmitted; the other sideband and carrier are suppressed
B	SSB is the only voice mode that is authorized on the 20-meter, 15-meter, and 10-meter amateur bands
C	Only one sideband and the carrier are transmitted; the other sideband is suppressed
D	SSB is the only voice mode that is authorized on the 160-meter, 75-meter and 40-meter amateur bands

7. - G2B12

When is an amateur station allowed to use any means at its disposal to assist another station in distress?

Select	Answer
A	At any time during an actual emergency
B	Only on authorized HF frequencies
C	At any time when transmitting in an organized net
D	Only when transmitting in RACES

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	Operating split to avoid interference on frequency
C	Matching the speed of the transmitting station
D	Sending without error

9. - G2D01

What is the Amateur Auxiliary to the FCC?

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

10. - G2E13

Which communication system sometimes uses the Internet to transfer messages?

Select	Answer
A	Skywarn
B	Winlink
C	ARES
D	RTTY

11. - G3A15

How long does it take charged particles from coronal mass ejections to affect radio propagation on the Earth?

Select	Answer
A	14 days
B	28 days
C	20 to 40 hours
D	4 to 8 minutes

12. - G3B02

Which of the following is a good indicator of the possibility of sky-wave propagation on the 6-meter band?

Select	Answer
A	Short skip sky-wave propagation on the 10-meter band
B	Severe attenuation of signals on the 10-meter band
C	Long skip sky-wave propagation on the 10-meter band
D	Long delayed echoes on the 10-meter band

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The D layer absorbs signals at these frequencies during daylight hours
B	The F layer is unstable during daylight hours
C	The F layer absorbs signals at these frequencies during daylight hours
D	The E layer is unstable during daylight hours

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce the transmitter power when driving a linear amplifier
B	To reduce power consumption when operating from batteries
C	To reduce signal overload due to strong incoming signals
D	To slow down received CW signals for better copy

15. - G4B14

What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a digital readout?

Select	Answer
A	When testing logic circuits
B	When adjusting tuned circuits
C	When high precision is desired
D	When measuring the frequency of an oscillator

16. - G4C05

What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

Select	Answer
A	Insulated wire has been used for the ground wire
B	The ground rod is resonant
C	Flat braid rather than round wire has been used for the ground wire
D	The ground wire has high impedance on that frequency

17. - G4D02

Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

Select	Answer
A	It reduces harmonic distortion
B	It reduces intermodulation distortion
C	It increases peak power
D	It increases average power

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 battery charging system
C	The vehicle control computer
D	All of these choices are correct

19. - G5A02

What is reactance?

Select	Answer
A	A large spark produced at switch contacts when an inductor is de-energized
B	Opposition to the flow of alternating current caused by capacitance or inductance
C	A property of ideal resistors in AC circuits
D	Opposition to the flow of direct current caused by resistance

20. - G5B04

How many watts of electrical power are used by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	2.4 watts
B	6 watts
C	60 watts
D	24 watts

21. - G5C17

What is the value in nanofarads (nF) of a 22,000 pF capacitor?

Select	Answer
A	2.2 nF
B	220 nF
C	22 nF
D	0.22 nF

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 increase the beta of the transistor
C	To improve the power dissipation capability
D	To reduce stray capacitance

23. - G6B14

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

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

24. - G7A12

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

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

25. - G7B04

Which of the following describes the function of a two input NOR gate?

Select	Answer
A	Output is high when either or both inputs are low
B	Output is low when either or both inputs are high
C	Output is high only when both inputs are high
D	Output is low only when both inputs are high

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

27. - G8A02

What is the name of the process that changes the phase angle of an RF wave to convey information?

Select	Answer
A	Radian inversion
B	Phase modulation
C	Angle convolution
D	Phase convolution

28. - G8B03

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

Select	Answer
A	Phase inverting
B	Synthesizing
C	Cancellation
D	Heterodyning

29. - G8C07

How does the receiving station respond to an ARQ data mode packet containing errors?

Select	Answer
A	It terminates the contact
B	It sends the packet back to the transmitting station
C	It requests the packet be retransmitted
D	It requests a change in transmitting protocol

30. - G9A13

What standing wave ratio will result when connecting a 50 ohm feed line to an antenna that has a purely resistive 300 ohm feed point impedance?

Select	Answer
A	3:1
B	You cannot determine SWR from impedance values
C	6:1
D	1.5:1

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It stays the same
B	It decreases
C	It increases
D	It reaches a maximum at an angle of 45 degrees

32. - G9C15

Approximately how long is each side of the reflector element of a quad antenna?

Select	Answer
A	Slightly less than 1/2 wavelength
B	Slightly more than 1/2 wavelength
C	Slightly less than 1/4 wavelength
D	Slightly more than 1/4 wavelength

33. - G9D06

Which of the following is an advantage of a log periodic antenna?

Select	Answer
A	Wide bandwidth
B	Polarization diversity
C	Higher gain per element than a Yagi antenna
D	Harmonic suppression

34. - G0A04

What does "time averaging" mean in reference to RF radiation exposure?

Select	Answer
A	The average time it takes RF radiation to have any long-term effect on the body
B	The total time of the exposure
C	The total RF exposure averaged over a certain time
D	The average amount of power developed by the transmitter over a specific 24 hour period

35. - G0B04

Which of the following is a primary reason for not placing a gasoline-fueled generator inside an occupied area?

Select	Answer
A	Danger of engine over torque
B	Lack of oxygen for adequate combustion
C	Lack of nitrogen for adequate combustion
D	Danger of carbon monoxide poisoning

Figure G7-1