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. - G1A13

What is the appropriate action if, when operating on either the 30-meter or 60-meter bands, a station in the primary service interferes with your contact?

Select	Answer
A	Attempt to contact the station and request that it stop the interference
B	Notify the FCCs regional Engineer in Charge of the interference
C	Move to a clear frequency or stop transmitting
D	Increase your transmitter's power to overcome the interference

2. - G1B09

When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest?

Select	Answer
A	Only when there is no other means of communications readily available
B	Never
C	When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis
D	When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis

3. - G1C04

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

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

4. - G1D07

Volunteer Examiners are accredited by what organization?

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

5. - G1E08

Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC-granted license at which an FCC licensed control operator is present?

Select	Answer
A	The control operator must have at least a General Class license
B	The foreign amateur station must be in a country with which the United States has a third party agreement
C	All of these choices are correct
D	Information must be exchanged in English

6. - G2A06

Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Select	Answer
A	Ease of tuning on receive and immunity to impulse noise
B	Less subject to interference from atmospheric static crashes
C	Less bandwidth used and greater power efficiency
D	Very high fidelity voice modulation

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

8. - G2C10

What does the Q signal "QRN" mean?

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

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Hunters have an opportunity to transmit on non-amateur frequencies
B	Identification of out of band operation
C	Identification of different call signs
D	Direction finding used to locate stations violating FCC Rules

10. - G2E06

What is the most common frequency shift for RTTY emissions in the amateur HF bands?

Select	Answer
A	850 Hz
B	425 Hz
C	85 Hz
D	170 Hz

11. - G3A04

Which of the following are least reliable for long distance communications during periods of low solar activity?

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

12. - G3B12

What factor or factors affect the MUF?

Select	Answer
A	Solar radiation and ionospheric disturbances
B	Path distance and location
C	Time of day and season
D	All of these choices are correct

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

14. - G4A05

What is a reason to use Automatic Level Control (ALC) with an RF power amplifier?

Select	Answer
A	To reduce harmonic radiation
B	To increase overall efficiency
C	To balance the transmitter audio frequency response
D	To reduce distortion due to excessive drive

15. - G4B02

Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

Select	Answer
A	An oscilloscope uses less power
B	Input impedance is much lower
C	Complex waveforms can be measured
D	Complex impedances can be easily measured

16. - G4C08

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

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

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

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

19. - G5A13

Which of the following devices can be used for impedance matching at radio frequencies?

Select	Answer
A	All of these choices are correct
B	A length of transmission line
C	A transformer
D	A Pi-network

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	2500 watts
C	5000 watts
D	625 watts

21. - G5C14

Which of the following components should be added to an inductor to increase the inductance?

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

22. - G6A02

What is an advantage of the low internal resistance of nickel-cadmium batteries?

Select	Answer
A	High voltage
B	High discharge current
C	Long life
D	Rapid recharge

23. - G6B12

Which of the following connectors would be a good choice for a serial data port?

Select	Answer
A	Type SMA
B	DE-9
C	PL-259
D	Type N

24. - G7A11

Which symbol in figure G7-1 represents an NPN junction transistor?

Select	Answer
A	Symbol 2
B	Symbol 7
C	Symbol 1
D	Symbol 11

25. - G7B09

What determines the frequency of an LC oscillator?

Select	Answer
A	The number of stages in the counter
B	The number of stages in the divider
C	The inductance and capacitance in the tank circuit
D	The time delay of the lag circuit

26. - G7C05

Which of the following is an advantage of a transceiver controlled by a direct digital synthesizer (DDS)?

Select	Answer
A	Relatively low power consumption
B	Wide tuning range and no need for band switching
C	Variable frequency with the stability of a crystal oscillator
D	Relatively high power output

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Insufficient audio
B	Frequency drift
C	Insufficient bandwidth
D	Excessive bandwidth

28. - G8B05

What is the approximate bandwidth of a PACTOR3 signal at maximum data rate?

Select	Answer
A	1800 Hz
B	2300 Hz
C	500 Hz
D	31.5 Hz

29. - G8C08

Which of the following statements is true about PSK31?

Select	Answer
A	Upper case letters use longer Varicode signals and thus slow down transmission
B	Higher power is needed as compared to RTTY for similar error rates
C	Varicode Error Correction is used to ensure accurate message reception
D	Upper case letters make the signal stronger

30. - G9A15

What is the effect of transmission line loss on SWR measured at the input to the line?

Select	Answer
A	The higher the transmission line loss, the more the SWR will read artificially high
B	The higher the transmission line loss, the more accurate the SWR measurement will be
C	The higher the transmission line loss, the more the SWR will read artificially low
D	Transmission line loss does not affect the SWR measurement

31. - G9B05

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

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

32. - G9C17

Approximately how long is each leg of a symmetrical delta-loop antenna?

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

33. - G9D04

What is the primary purpose of antenna traps?

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

34. - G0A01

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

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

35. - G0B11

Which of the following is good practice for lightning protection grounds?

Select	Answer
A	They must be bonded together with all other grounds
B	Lightning grounds must be connected to all ungrounded wiring
C	Bends in ground wires must be made as close as possible to a right angle
D	They must be bonded to all buried water and gas lines

Figure G7-1