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. - G1A01

On which of the following bands is a General Class license holder granted all amateur frequency privileges?

Select	Answer
A	160, 30, 17, 15, 12, and 10 meters
B	160, 80, 40, and 10 meters
C	60, 20, 17, and 12 meters
D	160, 60, 30, 17, 12, and 10 meters

2. - G1B02

With which of the following conditions must beacon stations comply?

Select	Answer
A	A beacon station may not use automatic control
B	There must be no more than one beacon signal transmitting in the same band from the same station location
C	The frequency must be coordinated with the National Beacon Organization
D	The frequency must be posted on the Internet or published in a national periodical

3. - G1C04

Which of the following limitations apply to transmitter power on every amateur band?

Select	Answer
A	Only the minimum power necessary to carry out the desired communications should be used
B	Power must be limited to 200 watts when transmitting between 14.100 MHz and 14.150 MHz
C	Power should be limited as necessary to avoid interference to another radio service on the frequency
D	Effective radiated power cannot exceed 1500 watts

4. - G1D04

Which of the following is a requirement for administering a Technician Class license examination?

Select	Answer
A	At least two General Class or higher VEs must be present
B	At least three VEs of Technician Class or higher must observe the examination
C	At least three General Class or higher VEs must observe the examination
D	At least two General Class or higher VEs must be present, but only one need be Extra Class

5. - G1E06

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

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

6. - G2A01

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

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

7. - G2B03

If propagation changes during your contact and you notice increasing interference from other activity on the same frequency, what should you do?

Select	Answer
A	Increase power to overcome interference
B	Tell the interfering stations to change frequency
C	Report the interference to your local Amateur Auxiliary Coordinator
D	As a common courtesy, move your contact to another frequency

8. - G2C11

What does the Q signal "QRV" mean?

Select	Answer
A	There is interference on the frequency
B	I am quitting for the day
C	I am ready to receive messages
D	You are sending too fast

9. - G2D11

Which HF antenna would be the best to use for minimizing interference?

Select	Answer
A	An omnidirectional antenna
B	A quarter-wave vertical antenna
C	A directional antenna
D	An isotropic antenna

10. - G2E01

Which mode is normally used when sending an RTTY signal via AFSK with an SSB transmitter?

Select	Answer
A	DSB
B	USB
C	CW
D	LSB

11. - G3A06

What is a geomagnetic storm?

Select	Answer
A	Ripples in the ionosphere
B	A sudden drop in the solar flux index
C	A thunderstorm which affects radio propagation
D	A temporary disturbance in the Earth's magnetosphere

12. - G3B07

What does LUF stand for?

Select	Answer
A	The Longest Universal Function for communications between two points
B	The Longest Universal Function during a 24 hour period
C	The Lowest Usable Frequency during a 24 hour period
D	The Lowest Usable Frequency for communications between two points

13. - G3C02

Where on the Earth do ionospheric layers reach their maximum height?

Select	Answer
A	Where the Sun is overhead
B	Where the Sun is rising
C	Where the Sun has just set
D	Where the Sun is on the opposite side of the Earth

14. - G4A02

What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?

Select	Answer
A	Interference from impulse noise will be eliminated
B	It may be possible to reduce or eliminate interference from other signals
C	Accidental out of band operation can be prevented
D	More stations can be accommodated within a given signal passband

15. - G4B05

Why is high input impedance desirable for a voltmeter?

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

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

Select	Answer
A	Clearly audible speech
B	A steady hum whenever the transmitter is on the air
C	On-and-off humming or clicking
D	Distorted speech

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

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To electrically lengthen a physically short antenna
B	To increase the power handling capacity of a whip antenna
C	To allow remote tuning
D	To allow automatic band changing

19. - G5A09

What unit is used to measure reactance?

Select	Answer
A	Siemens
B	Ohm
C	Farad
D	Ampere

20. - G5B01

What dB change represents a two-times increase or decrease in power?

Select	Answer
A	Approximately 3 dB
B	Approximately 2 dB
C	Approximately 12 dB
D	Approximately 6 dB

21. - G5C17

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

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

22. - G6A04

When is it acceptable to recharge a carbon-zinc primary cell?

Select	Answer
A	When the cell is kept warm during the recharging period
B	Never
C	When a constant current charger is used
D	As long as the voltage has not been allowed to drop below 1.0 volt

23. - G6B11

What is a microprocessor?

Select	Answer
A	A computer on a single integrated circuit
B	A microwave detector, amplifier, and local oscillator on a single integrated circuit
C	A low voltage amplifier used in a microwave transmitter modulator stage
D	A low power analog signal processor used as a microwave detector

24. - G7A08

Which of the following is an advantage of a switchmode power supply as compared to a linear power supply?

Select	Answer
A	Fewer circuit components are required
B	Faster switching time makes higher output voltage possible
C	All of these choices are correct
D	High frequency operation allows the use of smaller components

25. - G7B04

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

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

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

Select	Answer
A	Detector
B	Balanced modulator
C	IF amplifier
D	Discriminator

27. - G8A06

What is one advantage of carrier suppression in a single sideband phone transmission versus full carrier amplitude modulation?

Select	Answer
A	Greater modulation percentage is obtainable with lower distortion
B	Audio fidelity is improved
C	Available transmitter power can be used more effectively
D	Simpler receiving equipment can be used

28. - G8B06

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

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

29. - G8C11

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

Select	Answer
A	High and Low
B	Mark and Space
C	Dot and Dash
D	On and Off

30. - G9A14

What is the interaction between high standing wave ratio (SWR) and transmission line loss?

Select	Answer
A	There is no interaction between transmission line loss and SWR
B	If a transmission line is lossy, high SWR will increase the loss
C	High SWR makes it difficult to measure transmission line loss
D	High SWR reduces the relative effect of transmission line loss

31. - G9B02

Which of the following is a common way to adjust the feed point impedance of a quarter wave ground plane vertical antenna to be approximately 50 ohms?

Select	Answer
A	Lengthen the radials
B	Shorten the radials
C	Slope the radials upward
D	Slope the radials downward

32. - G9C07

What does "front-to-back ratio" mean in reference to a Yagi antenna?

Select	Answer
A	The relative position of the driven element with respect to the reflectors and directors
B	The power radiated in the major radiation lobe compared to the power radiated in exactly the opposite direction
C	The number of directors versus the number of reflectors
D	The ratio of forward gain to dipole gain

33. - G9D02

Which of the following is an advantage of an NVIS antenna?

Select	Answer
A	High forward gain
B	Low vertical angle radiation for working stations out to ranges of several thousand kilometers
C	All of these choices are correct
D	High vertical angle radiation for working stations within a radius of a few hundred kilometers

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	All of these choices are correct
B	Perform a routine RF exposure evaluation
C	Post a copy of FCC Part 97.13 in the station
D	Post a copy of OET Bulletin 65 in the station

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 8
B	AWG number 16
C	AWG number 20
D	AWG number 12